- Release Notes
-
- 7.4 Development Branch
-
+Release notes for all versions of PostgreSQL can be found on-line at
+http://www.postgresql.org/docs/current/static/release.html
-Valid as of 2003-08-01. Update release.sgml later.
-
-
-Server Operation
-
-Allow IPv6 server connections (Nigel Kukard, Johan Jordaan, Bruce, Tom, Kurt
- Roeckx, Andrew Dunstan)
-Fix SSL to handle errors cleanly (Nathan Mueller)
-SSL protocol security and performance improvements (Sean Chittenden)
-Print lock information when a deadlock is detected (Tom)
-Update /tmp socket files regularly to avoid their removal (Tom)
-Enable PAM for MAC OS X (Aaron Hillegass)
-Make btree indexes fully WAL-safe (Tom)
-Allow btree index compaction and empty page reuse (Tom)
-Fix inconsistent index lookups during split of first root page (Tom)
-Improve free space map allocation logic (Tom)
-Preserve free space information between postmaster restarts (Tom)
-Set proper schema permissions in initdb (Peter)
-Add start time to pg_stat_activity (Neil)
-New code to detect corrupt disk pages; erase with zero_damaged_pages (Tom)
-New client/server protocol: faster, no username length limit, allow
- clean exit
-Add transaction status, tableid, columnid to backend protocol (Tom)
-Add new binary I/O protocol (Tom)
-Remove autocommit server setting; move to client applications (Tom)
-New error message wording, error codes, and three levels of error detail (Tom)
-
- _________________________________________________________________
-
-Performance
-
-Add hashing for GROUP BY aggregates (Tom)
-Allow nested loops to be smarter about multicolumn indexes (Tom)
-Allow multi-key hash joins (Tom)
-Improve constant folding (Tom)
-Add ability to inline simple SQL functions (Tom)
-Reduce memory usage for queries using complex functions (Tom)
-Improve GEQO optimizer performance (Tom)
-Allow IN/NOT IN to be handled via hash tables (Tom)
-Improve NOT IN (subquery) performance (Tom)
-Allow most IN subqueries to be processed as joins (Tom)
-Allow the postmaster to preload libraries using preload_libraries (Joe)
-Improve reverse index scan performance (Tom)
-Improve optimizer cost computations, particularly for subqueries (Tom)
-Assume WHERE a.x = b.y and b.y = 42 also means a.x = 42 (Tom)
-Allow hash/merge joins on complex joins (Tom)
-Allow hash joins for more data types (Tom)
-Allow join optimization of ANSI joins, disable with join_collapse_limit (Tom)
-Add from_collapse_limit to control conversion of subqueries to joins (Tom)
-Use faster regex code from TCL (Henry Spencer, Tom)
-Use bit-mapped relation sets in the optimizer (Tom)
-Improve backend startup time (Tom)
-Improve trigger/constraint performance (Stephan)
-
- _________________________________________________________________
-
-Server Configuration
-
-Rename server parameter server_min_messages to log_min_messages (Bruce)
-Rename show_*_stats to log_*_stats (Bruce)
-Rename show_source_port to log_source_port (Bruce)
-Rename hostname_lookup to log_hostname (Bruce)
-Add checkpoint_warning to warn of excessive checkpointing (Bruce)
-New read-only server parameters for localization (Tom)
-Change debug server log messages to output as DEBUG rather than LOG (Bruce)
-Prevent server log variables from being turned off by non-super users (Bruce)
-log_min_messages/client_min_messages now controls debug_* output (Bruce)
-Add Rendezvous server support (Chris Campbell)
-Add ability to print only slow statements using log_min_duration_statement
- (Christopher)
-Allow pg_hba.conf to accept netmasks in CIDR format (Andrew Dunstan)
-New is_superuser read-only variable (Tom)
-New server-side parameter log_error_verbosity to control error detail (Tom)
-postgres --help-config now dumps server config variables (Tom)
-Make default shared_buffers 1000 and max_connections 100, if possible (Tom)
-Add new columns in pg_settings: context, type, source , min_val, max_val (Joe)
-Prevent assign_session_authorization() from being confused by
- all-numeric user names (Tom)
-
- _________________________________________________________________
-
-Queries
-
-New SQL-standard information schema (Peter)
-Add read-only transactions (Peter)
-Add server variable regex_flavor to control regular expression
- processing (Tom)
-Allow ORDER BY in FROM subqueries to be honored by outer queries (Tom)
-Print key name in foreign-key violation messages (Dmitry Tkach)
-Allow users to see their own queries in pg_stat_activity (Kevin Brown)
-Allow subquery aggregates to reference upper query columns (?) (Tom)
-Add option to prevent auto-addition of tables referenced in query (Nigel J.
- Andrews)
-Allow dollar signs in identifiers, except as first character (Tom)
-Allow UPDATE ... SET col = DEFAULT (Rod)
-Allow expressions to be used in LIMIT/OFFSET (Tom)
-
- _________________________________________________________________
-
-Object Manipulation
-
-Make CREATE SEQUENCE grammar more SQL1999 standards compliant (Neil)
-Add FOR EACH STATEMENT statement-level triggers (Neil Conway)
-Add DOMAIN CHECK constraints (Rod)
-Add ALTER DOMAIN .. SET / DROP NOT NULL, SET / DROP DEFAULT, ADD / DROP
- CONSTRAINT (Rod)
-Allow zero-column tables (Tom)
-Have ALTER TABLE ... ADD PRIMARY KEY add NOT NULL constraint (Rod)
-Add ALTER DOMAIN OWNER (Rod)
-Add pg_trigger.tgenabled to disable triggers? (Neil)
-Add ALTER TABLE ... WITHOUT OIDS? (Rod)
-Have parser honor foreign-key constraints if created via ALTER TABLE ADD
- COLUMN? (Tom)
-Add ALTER SEQUENCE to modify min/max/increment/cache/cycle values (Rod)
-Add ALTER TABLE ... CLUSTER ON (Alvaro Herrera)
-Improve DOMAIN automatic type casting (Tom)
-Disallow dollar signs in operator names (Tom)
-Allow SQL200X inheritance syntax LIKE <subtable>, INCLUDING DEFAULTS? (Rod)
-Object owners can allow grantees to grant privilege to others?
-
- _________________________________________________________________
-
-Utility Commands
-
-Add ON COMMIT PRESERVE ROWS for temp tables (Gavin)
-Allow cursors outside transactions using WITH HOLD (Neil)
-Make MOVE/FETCH 0 actually move/fetch 0 (Bruce)
-Cause FETCH 1 to return the current cursor row, or zero if at
- beginning/end of cursor, per SQL spec (Bruce)
-Have MOVE return 0 or 1 depending on cursor position (Bruce)
-Properly handle SCROLL with cursors, or report an error (Tom)
-Implement SQL92-compatible FIRST, LAST, ABSOLUTE n, RELATIVE n options
- for FETCH and MOVE (Tom)
-Allow EXPLAIN on DECLARE CURSOR (Tom)
-Allow CLUSTER to use index marked as pre-clustered by default (Alvaro Herrera)
-Allow CLUSTER without tablename clusters all tables (Alvaro Herrera)
-Prevent CLUSTER on partial indexes (Tom)
-Allow \r and \r\n termination for COPY files (Bruce)
-Disallow literal carriage return as a data value, backslash-carriage-return
- and \r still allowed (Bruce)
-COPY changes (binary, \.)? (Tom)
-Recover from COPY IN/OUT failure cleanly (Tom)
-Reduce memory used by COPY (Tom)
-Make TRUNCATE transaction-safe (Rod)
-Multiple pg_dump fixes, including tar format and large objects
-Allow pg_dump to dump specific schemas (Neil)
-Allow pg_dump to preserve column storage characteristics (Christopher)
-Allow pg_dump to preserve CLUSTER characteristics (Christopher)
-Have pg_dumpall use GRANT/REVOKE to dump database-level permissions (Tom)
-Allow pg_dumpall to support the -a, -s, -x options of pg_dump (Tom)
-Prevent pg_dump from lowercasing identifiers specified on the command line (Tom)
-Allow EXPLAIN EXECUTE (Neil)
-Allow pg_get_constraintdef() to support UNIQUE, PRIMARY KEY and
- CHECK constraints (Christopher)
-Improve VACUUM performance on indexes by reducing WAL traffic (Tom)
-Allow pg_ctl to better handle non-standard ports (Greg)
-Functional indexes now support indexes on column expressions (Tom)
-Syntax errors now reported as 'syntax error' rather than 'parse error' (Tom)
-Have SHOW TRANSACTION_ISOLATION match input to SET TRANSACTION_ISOLATION (Tom)
-Have COMMENT ON DATABASE on non-local database generate a warning (Tom)
-
- _________________________________________________________________
-
-Data Types and Functions
-
-New extra_float_digits server parameter to control float precision display
- (Pedro Ferreira, Tom)
-Allow +1300 as a numeric timezone specifier, for FJST (Tom)
-Remove rarely used oidrand(), oidsrand(), and userfntest() functions (Neil)
-Add md5() function to main server, already in /contrib/pgcrypto (Joe)
-Increase date range of timestamp (John Cochran)
-Change EXTRACT(EPOCH FROM timestamp) so timestamp without time zone
- is assumed to be in local time, not GMT (Tom)
-Trap division by zero in case the operating system doesn't prevent it (Tom)
-Change the NUMERIC data type internally to base 10000 (Tom)
-New hostmast() function (Greg Wickham)
-Fixes for to_char() (Karel)
-Allow functions that can take any argument data type and return
- any data type, using ANYELEMENT and ANYARRAY (Joe)
-Arrays may now be specified as ARRAY[1,2,3], ARRAY[['a','b'],['c','d']],
- or ARRAY[ARRAY[ARRAY[2]]] (Joe)
-Allow proper comparisons for arrays (Joe)
-Allow indexes on array columns, and used in ORDER BY and DISTINCT (Joe)
-Allow WHERE qualification 'expr <oper> ANY/SOME/ALL (array-expr)' (Joe)
-Allow polymorphic SQL functions (Tom, Joe)
-Allow array concatenation with '||' and normal array comparisons (Joe)
-New array functions array_append(), array_cat(), array_lower(),
- array_prepend(), array_to_string(), array_upper(), string_to_array() (Joe)
-Allow user defined aggregates to use polymorphic functions (Joe)
-Allow polymorphic user defined aggregates (Joe)
-Allow assignments to empty arrays (Joe)
-Allow 60 in seconds fields of timestamp, time, interval input values (Tom)
-Allow PREPARE/bind of utility commands like FETCH and EXPLAIN (Tom)
-Allow CIDR data type to be cast to text (Tom)
-Allow the creation of special LIKE indexes for non-C locales (Peter)
-Disallow invalid timezone names (Tom)
-Trim trailing spaces when CHAR() data is cast to VARCHAR or TEXT (Tom)
-Make FLOAT(p) measure the precision p in bits, not decimal digits (Tom)
-Add IPv6 support to the inet and cidr data types (Michael Graff)
-Add family() function to report whether address is IPv4 or IPv6 (Michael Graff)
-Have SHOW DATESTYLE generate output similar to that used by SET DATESTYLE (Tom)
-Change DATESTYLE to output its value in a more common format (Tom)
-Make EXTRACT(TIMEZONE) and SET/SHOW TIMEZONE follow the SQL convention
- for the sign of timezone offsets, ie, positive is east from UTC (Tom)
-Fix date_trunc('quarter',...) (B?jthe Zolt?n)
-Make initcap() more compatible with Oracle (Mike Nolan)
-Honor only DateStyle setting for date entry without a four-digit year (Greg)
-Add new DateStyle values MDY, DMY, and YMD, honor US and European for
- backward compatibility (Tom)
-'now' will no longer work as a default, use now() (change required for prepared
- statements) (Tom)
-Assume NaN value to be larger than any other value in comparisons (Tom)
-Prevent timestamp from supressing ':00' seconds display
-
- _________________________________________________________________
-
-Server-side Languages
-
-Prevent PL/pgSQL crash when RETURN NEXT is used on a zero-row record (Tom)
-Make PL/python's spi_execute interface handle NULLs properly (Andrew Bosma)
-Allow PL/pgSQL to declare variables of composite types without %ROWTYPE (Tom)
-Fix PL/python _quote() function to handle big integers (?)
-Make PL/python an untrusted language, now called plpythonu (Kevin Jacobs, Tom)
-Change PL/pgSQL EXECUTE INTO to CREATE TABLE AS EXECUTE? (Peter)
-Allow polymorphic PL/pgSQL functions (Tom, Joe)
-Improved compiled function caching mechanism in PL/pgSQL with full
- support for polymorphism (Tom, Joe)
-Add new $0 parameter in PL/pgSQL representing the function's actual
- return type (Tom, Joe)
-
- _________________________________________________________________
-
-Psql
-
-Add "\pset pager always" to always use pager (Greg)
-Improve tab completion (Rod, Ross Reedstrom, Ian Barwick)
-Reorder \? help into groupings (Harald Armin Massa, Bruce)
-Add schema, cast, and conversion backslash commands (Christopher)
-\encoding now tracks client_encoding server variable (Tom)
-Save edit history into readline history (Ross)
-Improve \d display (Christopher)
-Enhance HTML mode to be more standards-compliant (Greg)
-New '\set autocommit off' capability (Tom)
-New '\set verbosity' to control error detail (Tom)
-New %T prompt string to show transaction status (Tom)
-
- _________________________________________________________________
-
-Libpq
-
-Allow PQcmdTuples() to return row counts for MOVE and FETCH (Neil)
-Add PQfreemem() for freeing memory on Win32, suggest for NOTIFY (Bruce)
-Document service capability, and add sample file (Bruce)
-Make PQsetdbLogin() have the same defaults as PQconnectdb() (Tom)
-Allow libpq to cleanly fail when result sets are too large (Tom)
-Improve performance of PGunescapeBytea() (Ben Lamb)
-Allow thread-safe libpq with --enable-thread-safety (Lee Kindness, Philip Yarra)
-Allow pqInternalNotice() to accept a format string and args instead of
- just a preformatted message (Tom, Sean Chittenden)
-Allow control SSL negotiation with sslmode values "disable", "allow",
- "Prefer", and "require" (Jon Jensen)
-
- _________________________________________________________________
-
-JDBC
-
-Allow setNull on updateable resultsets
-Allow executeBatch on a prepared statement (Barry)
-Support SSL connections (Barry)
-Handle schema names in result sets (Paul Sorenson)
-Add refcursor support (Nic Ferrier)
-
- _________________________________________________________________
-
-Miscellaneous Interfaces
-
-Prevent possible memory leak or core dump during libpgtcl shutdown (Tom)
-Add ecpg Informix compatibility (Michael)
-Add ecpg DECIMAL type that is fixed length, for Informix (Michael)
-Allow thread-safe ecpg with --enable-thread-safety (Lee Kindness, Bruce)
-Allow client interfaces to compile under MinGW/win32 (Bruce)
-Move python client interface to http://www.pygresql.org (Marc)
-
- _________________________________________________________________
-
-Source Code
-
-Prevent need for separate platform geometry regression result files (Tom)
-Improved PPC locking primitive (Reinhard Max)
-Embed LD_LIBRARY_PATH used for build process into binaries (Billy)
-New palloc0 to allocate and clear memory (Bruce)
-Fix locking code for s390x CPU (64-bit) (Tom)
-Allow OpenBSD to use local indent credentials (William Ahern)
-Allow read-only query plans (Tom)
-Add Darwin startup scripts (David Wheeler)
-Allow libpq to compile with Borland C++ compiler (Lester Godwin, Karl Waclawek)
-Use our own version of getopt_long() if needed (Peter)
-Convert administration scripts to C (Peter)
-Bison >=1.85 is now required for grammar changes
-Merge documentation into one book (Peter)
-Add Win32 compatibility functions (Bruce)
-New ereport() function for error reporting (Tom)
-Support Intel Linux compiler (Peter)
-Improve Linux startup scripts (Slawomir Sudnik, Darko Prenosil)
-Add support for AMD Opteron and Itanium (Jeffrey W. Baker, Bruce)
-
- _________________________________________________________________
-
-Contrib
-
-Change dbmirror license to BSD
-Improve earthdistance (Bruno Wolff III)
-Portability improvements to pgcrypto (Marko Kreen)
-Prevent xml crash (John Gray, Michael Richards)
-Update oracle
-Update mysql
-Update cube (Bruno Wolff III)
-Update earthdistance to use cube (Bruno Wolff III)
-Update btree_gist (Oleg)
-New tsearch2 full-text search module (Oleg, Teodor)
-Add hashed based crosstab function to tablefuncs (Joe)
-Add serial column to order connectby() siblings in tablefuncs (Nabil Sayegh,Joe)
-Add named persistent connections to dblink (Shridhar Daithanka)
-New pg_autovacuum allows automatic VACUUM (Matthew T. O'Connor)
-Allow pgbench to honor PGHOST, PGPORT, PGUSER env. variables (Tatsuo)
-Improve intarray (Teodor Sigaev)
-Improve pgstattuple (Rod)
-Fix bug in metaphone() in fuzzystrmatch
-Improve adddepend (Rod)
-Update spi/timetravel (B?jthe Zolt?n)
-Fix dbase -s option (Thomas Behr)
-
- _________________________________________________________________
-
- Release 7.3.3
-
- Release date: 2003-05-22
-
- This has a variety of fixes from 7.3.2.
- _________________________________________________________________
-
- Migration to version 7.3.3
-
- A dump/restore is *not* required for those running 7.3.*.
- _________________________________________________________________
-
- Changes
-
- Repair sometimes-incorrect computation of StartUpID after a crash
- Avoid slowness with lots of deferred triggers in one transaction (Stephan)
- Don't lock referenced row when UPDATE doesn't change foreign key's value
- (Jan)
- Use -fPIC not -fpic on Sparc (Tom Callaway)
- Repair lack of schema-awareness in contrib/reindexdb
- Fix contrib/intarray error for zero-element result array (Teodor)
- Ensure createuser script will exit on control-C (Oliver)
- Fix errors when the type of a dropped column has itself been dropped
- CHECKPOINT does not cause database panic on failure in noncritical steps
- Accept 60 in seconds fields of timestamp, time, interval input values
- Issue notice, not error, if TIMESTAMP, TIME, or INTERVAL precision too
- large
- Fix abstime-to-time cast function (fix is not applied unless you initdb)
- Fix pg_proc entry for timestamptz_izone (fix is not applied unless you
- initdb)
- Make EXTRACT(EPOCH FROM timestamp without time zone) treat input as
- local time
- 'now'::timestamptz gave wrong answer if timezone changed earlier in
- transaction
- HAVE_INT64_TIMESTAMP code for time with timezone overwrote its input
- Accept GLOBAL TEMP/TEMPORARY as a synonym for TEMPORARY
- Avoid improper schema-permissions-check failure in foreign-key triggers
- Fix bugs in foreign-key triggers for SET DEFAULT action
- Fix incorrect time-qual check in row fetch for UPDATE and DELETE triggers
- Foreign-key clauses were parsed but ignored in ALTER TABLE ADD COLUMN
- Fix createlang script breakage for case where handler function already
- exists
- Fix misbehavior on zero-column tables in pg_dump, COPY, ANALYZE, other
- places
- Fix misbehavior of func_error() on type names containing '%'
- Fix misbehavior of replace() on strings containing '%'
- Regular-expression patterns containing certain multibyte characters failed
- Account correctly for NULLs in more cases in join size estimation
- Avoid conflict with system definition of isblank() function or macro
- Fix failure to convert large code point values in EUC_TW conversions
- (Tatsuo)
- Fix error recovery for SSL_read/SSL_write calls
- Don't do early constant-folding of type coercion expressions
- Validate page header fields immediately after reading in any page
- Repair incorrect check for ungrouped variables in unnamed joins
- Fix buffer overrun in to_ascii (Guido Notari)
- contrib/ltree fixes (Teodor)
- Fix core dump in deadlock detection on machines where char is unsigned
- Avoid running out of buffers in many-way indexscan (bug introduced in 7.3)
- Fix planner's selectivity estimation functions to handle domains properly
- Fix dbmirror memory-allocation bug (Steven Singer)
- Prevent infinite loop in ln(numeric) due to roundoff error.
- GROUP BY got confused if there were multiple equal GROUP BY items
- Fix bad plan when inherited UPDATE/DELETE references another inherited
- table
- Prevent clustering on incomplete (partial or non-NULL-storing) indexes
- Service shutdown request at proper time if it arrives while still
- starting up
- Fix left-links in temporary indexes (could make backwards scans miss
- entries)
- Fix incorrect handling of client_encoding setting in postgresql.conf
- (Tatsuo)
- Fix failure to respond to 'pg_ctl stop -m fast' after Async_NotifyHandler
- runs
- Fix SPI for case where rule contains multiple statements of the same type
- Fix problem with checking for wrong type of access permission in rule query
- Fix problem with EXCEPT in CREATE RULE
- Prevent problem with dropping temp tables having serial columns
- Fix replace_vars_with_subplan_refs failure in complex views
- Fix regexp slowness in single-byte encodings (Tatsuo)
- Allow qualified type names in CREATE CAST and DROP CAST
- Accept 'SETOF type[]', which formerly had to be written 'SETOF _type'
- Fix pg_dump core dump in some cases with procedural languages
- Force ISO datestyle in pg_dump output, for portability (Oliver)
- pg_dump failed to handle error return from lo_read (Oleg Drokin)
- pg_dumpall failed with groups having no members (Nick Eskelinen)
- pg_dumpall failed to recognize --globals-only switch
- pg_restore failed to restore blobs if -X disable-triggers is specified
- Repair intrafunction memory leak in plpgsql
- pltcl's elog command dumped core if given wrong parameters (Ian Harding)
- plpython used wrong value of atttypmod (Brad McLean)
- Fix improper quoting of boolean values in Python interface (D'Arcy)
- Added addDataType() method to PGConnection interface for JDBC
- Fixed various problems with updateable ResultSets for JDBC (Shawn Green)
- Fixed various problems with DatabaseMetaData for JDBC (Kris Jurka,
- Peter Royal)
- Fixed problem with parsing table ACLs in JDBC
- Better error message for character set conversion problems in JDBC
- _________________________________________________________________
-
- Release 7.3.2
-
- Release date: 2003-02-04
-
- This has a variety of fixes from 7.3.1.
- _________________________________________________________________
-
- Migration to version 7.3.2
-
- A dump/restore is *not* required for those running 7.3.*.
- _________________________________________________________________
-
- Changes
-
- Restore creation of OID column in CREATE TABLE AS / SELECT INTO
- Fix pg_dump core dump when dumping views having comments
- Dump DEFERRABLE/INITIALLY DEFERRED constraints properly
- Fix UPDATE when child table's column numbering differs from parent
- Increase default value of max_fsm_relations
- Fix problem when fetching backwards in a cursor for a single-row query
- Make backward fetch work properly with cursor on SELECT DISTINCT query
- Fix problems with loading pg_dump files containing contrib/lo usage
- Fix problem with all-numeric user names
- Fix possible memory leak and core dump during disconnect in libpgtcl
- Make plpython's spi_execute command handle nulls properly (Andrew Bosma)
- Adjust plpython error reporting so that its regression test passes again
- Work with bison 1.875
- Handle mixed-case names properly in plpgsql's %type (Neil)
- Fix core dump in pltcl when executing a query rewritten by a rule
- Repair array subscript overruns (per report from Yichen Xie)
- Reduce MAX_TIME_PRECISION from 13 to 10 in floating-point case
- Correctly case-fold variable names in per-database and per-user settings
- Fix coredump in plpgsql's RETURN NEXT when SELECT into record returns
- no rows
- Fix outdated use of pg_type.typprtlen in python client interface
- Correctly handle fractional seconds in timestamps in JDBC driver
- Improve performance of getImportedKeys() in JDBC
- Make shared-library symlinks work standardly on HPUX (Giles)
- Repair inconsistent rounding behavior for timestamp, time, interval
- SSL negotiation fixes (Nathan Mueller)
- Make libpq's ~/.pgpass feature work when connecting with PQconnectDB
- Update my2pg, ora2pg
- Translation updates
- Add casts between types lo and oid in contrib/lo
- fastpath code now checks for privilege to call function
- _________________________________________________________________
-
- Release 7.3.1
-
- Release date: 2002-12-18
-
- This has a variety of fixes from 7.3.
- _________________________________________________________________
-
- Migration to version 7.3.1
-
- A dump/restore is *not* required for those running 7.3. However, it
- should be noted that the main PostgreSQL interface library, libpq, has
- a new major version number for this release, which may require
- recompilation of client code in certain cases.
- _________________________________________________________________
-
- Changes
-
- Fix a core dump of COPY TO when client/server encodings don't match (Tom)
- Allow pg_dump to work with pre-7.2 servers (Philip)
- /contrib/adddepend fixes (Tom)
- Fix problem with deletion of per-user/per-database config settings (Tom)
- /contrib/vacuumlo fix (Tom)
- Allow 'password' encryption even when pg_shadow contains MD5 passwords
- (Bruce)
- /contrib/dbmirror fix (Steven Singer)
- Optimizer fixes (Tom)
- /contrib/tsearch fixes (Teodor Sigaev, Magnus)
- Allow locale names to be mixed case (Nicolai Tufar)
- Increment libpq library's major version number (Bruce)
- pg_hba.conf error reporting fixes (Bruce, Neil)
- Add SCO Openserver 5.0.4 as a supported platform (Bruce)
- Prevent EXPLAIN from crashing server (Tom)
- SSL fixes (Nathan Mueller)
- Prevent composite column creation via ALTER TABLE (Tom)
- _________________________________________________________________
-
- Release 7.3
-
- Release date: 2002-11-27
- _________________________________________________________________
-
- Overview
-
- Major changes in this release:
-
- Schemas
- Schemas allow users to create objects in separate namespaces,
- so two people or applications can have tables with the same
- name. There is also a public schema for shared tables.
- Table/index creation can be restricted by removing permissions
- on the public schema.
-
- Drop Column
- PostgreSQL now supports the ALTER TABLE ... DROP COLUMN
- functionality.
-
- Table Functions
- Functions returning multiple rows and/or multiple columns are
- now much easier to use than before. You can call such a "table
- function" in the SELECT FROM clause, treating its output like a
- table. Also, PL/pgSQL functions can now return sets.
-
- Prepared Queries
- PostgreSQL now supports prepared queries, for improved
- performance.
-
- Dependency Tracking
- PostgreSQL now records object dependencies, which allows
- improvements in many areas. "DROP" statements now take either
- CASCADE or RESTRICT to control whether dependent objects are
- also dropped.
-
- Privileges
- Functions and procedural languages now have privileges, and
- functions can be defined to run with the privileges of their
- creator.
-
- Internationalization
- Both multibyte and locale support are now always enabled.
-
- Logging
- A variety of logging options have been enhanced.
-
- Interfaces
- A large number of interfaces have been moved to
- http://gborg.postgresql.org where they can be developed and
- released independently.
-
- Functions/Identifiers
- By default, functions can now take up to 32 parameters, and
- identifiers can be up to 63 bytes long. Also, OPAQUE is now
- deprecated: there are specific "pseudo-datatypes" to represent
- each of the former meanings of OPAQUE in function argument and
- result types.
- _________________________________________________________________
-
- Migration to version 7.3
-
- A dump/restore using pg_dump is required for those wishing to migrate
- data from any previous release. If your application examines the
- system catalogs, additional changes will be required due to the
- introduction of schemas in 7.3; for more information, see:
- http://www.ca.postgresql.org/docs/momjian/upgrade_tips_7.3.
-
- Observe the following incompatibilities:
-
- * Pre-6.3 clients are no longer supported.
- * "pg_hba.conf" now has a column for the user name and additional
- features. Existing files need to be adjusted.
- * Several "postgresql.conf" logging parameters have been renamed.
- * LIMIT #,# has been disabled; use LIMIT # OFFSET #.
- * "INSERT" statements with column lists must specify a value for
- each specified column. For example, INSERT INTO tab (col1, col2)
- VALUES ('val1') is now invalid. It's still allowed to supply fewer
- columns than expected if the "INSERT" does not have a column list.
- * serial columns are no longer automatically UNIQUE; thus, an index
- will not automatically be created.
- * A "SET" command inside an aborted transaction is now rolled back.
- * "COPY" no longer considers missing trailing columns to be null.
- All columns need to be specified. (However, one may achieve a
- similar effect by specifying a column list in the "COPY" command.)
- * The data type timestamp is now equivalent to timestamp without
- time zone, instead of timestamp with time zone.
- * Pre-7.3 databases loaded into 7.3 will not have the new object
- dependencies for serial columns, unique constraints, and foreign
- keys. See the directory "contrib/adddepend/" for a detailed
- description and a script that will add such dependencies.
- * An empty string ('') is no longer allowed as the input into an
- integer field. Formerly, it was silently interpreted as 0.
- _________________________________________________________________
-
- Changes
-
-Server Operation
-
- Add pg_locks view to show locks (Neil)
- Security fixes for password negotiation memory allocation (Neil)
- Remove support for version 0 FE/BE protocol (PostgreSQL 6.2 and
- earlier) (Tom)
- Reserve the last few backend slots for superusers, add parameter
- superuser_reserved_connections to control this (Nigel J. Andrews)
- _________________________________________________________________
-
-Performance
-
- Improve startup by calling localtime() only once (Tom)
- Cache system catalog information in flat files for faster startup
- (Tom)
- Improve caching of index information (Tom)
- Optimizer improvements (Tom, Fernando Nasser)
- Catalog caches now store failed lookups (Tom)
- Hash function improvements (Neil)
- Improve performance of query tokenization and network handling (Peter)
- Speed improvement for large object restore (Mario Weilguni)
- Mark expired index entries on first lookup, saving later heap fetches
- (Tom)
- Avoid excessive NULL bitmap padding (Manfred Koizar)
- Add BSD-licensed qsort() for Solaris, for performance (Bruce)
- Reduce per-row overhead by four bytes (Manfred Koizar)
- Fix GEQO optimizer bug (Neil Conway)
- Make WITHOUT OID actually save four bytes per row (Manfred Koizar)
- Add default_statistics_target variable to specify ANALYZE buckets
- (Neil)
- Use local buffer cache for temporary tables so no WAL overhead (Tom)
- Improve free space map performance on large tables (Stephen Marshall,
- Tom)
- Improved WAL write concurrency (Tom)
- _________________________________________________________________
-
-Privileges
-
- Add privileges on functions and procedural languages (Peter)
- Add OWNER to CREATE DATABASE so superusers can create databases
- on behalf of unprivileged users. (Gavin Sherry, Tom)
- Add new object permission bits EXECUTE and USAGE (Tom)
- Add SET SESSION AUTHORIZATION DEFAULT and RESET SESSION AUTHORIZATION
- (Tom)
- Allow functions to be executed with the privilege of the function
- owner (Peter)
- _________________________________________________________________
-
-Server Configuration
-
- Server log messages now tagged with LOG, not DEBUG (Bruce)
- Add user column to pg_hba.conf (Bruce)
- Have log_connections output two lines in log file (Tom)
- Remove debug_level from postgresql.conf, now server_min_messages
- (Bruce)
- New ALTER DATABASE/USER ... SET command for per-user/database
- initialization (Peter)
- New parameters server_min_messages and client_min_messages to
- control which messages are sent to the server logs or client
- applications (Bruce)
- Allow pg_hba.conf to specify lists of users/databases separated by
- commas, group names prepended with +, and file names prepended
- with @ (Bruce)
- Remove secondary password file capability and pg_password utility
- (Bruce)
- Add variable db_user_namespace for database-local user names (Bruce)
- SSL improvements (Bear Giles)
- Make encryption of stored passwords the default (Bruce)
- Allow pg_statistics to be reset by calling pg_stat_reset()
- (Christopher)
- Add log_duration parameter (Bruce)
- Rename debug_print_query to log_statement (Bruce)
- Rename show_query_stats to show_statement_stats (Bruce)
- Add param log_min_error_statement to print commands to logs on error
- (Gavin)
- _________________________________________________________________
-
-Queries
-
- Make cursors insensitive, meaning their contents do not change (Tom)
- Disable LIMIT #,# syntax; now only LIMIT # OFFSET # supported (Bruce)
- Increase identifier length to 63 (Neil, Bruce)
- UNION fixes for merging >= 3 columns of different lengths (Tom)
- Add DEFAULT keyword to INSERT, e.g., INSERT ... (..., DEFAULT, ...)
- (Rod)
- Allow views to have default values using ALTER COLUMN ... SET DEFAULT
- (Neil)
- Fail on INSERTs with column lists that don't supply all column
- values, e.g., INSERT INTO tab (col1, col2) VALUES ('val1'); (Rod)
- Fix for join aliases (Tom)
- Fix for FULL OUTER JOINs (Tom)
- Improve reporting of invalid identifier and location (Tom, Gavin)
- Fix OPEN cursor(args) (Tom)
- Allow 'ctid' to be used in a view and currtid(viewname) (Hiroshi)
- Fix for CREATE TABLE AS with UNION (Tom)
- SQL99 syntax improvements (Thomas)
- Add statement_timeout variable to cancel queries (Bruce)
- Allow prepared queries with PREPARE/EXECUTE (Neil)
- Allow FOR UPDATE to appear after LIMIT/OFFSET (Bruce)
- Add variable autocommit (Tom, David Van Wie)
- _________________________________________________________________
-
-Object Manipulation
-
- Make equals signs optional in CREATE DATABASE (Gavin Sherry)
- Make ALTER TABLE OWNER change index ownership too (Neil)
- New ALTER TABLE tabname ALTER COLUMN colname SET STORAGE controls
- TOAST storage, compression (John Gray)
- Add schema support, CREATE/DROP SCHEMA (Tom)
- Create schema for temporary tables (Tom)
- Add variable search_path for schema search (Tom)
- Add ALTER TABLE SET/DROP NOT NULL (Christopher)
- New CREATE FUNCTION volatility levels (Tom)
- Make rule names unique only per table (Tom)
- Add 'ON tablename' clause to DROP RULE and COMMENT ON RULE (Tom)
- Add ALTER TRIGGER RENAME (Joe)
- New current_schema() and current_schemas() inquiry functions (Tom)
- Allow functions to return multiple rows (table functions) (Joe)
- Make WITH optional in CREATE DATABASE, for consistency (Bruce)
- Add object dependency tracking (Rod, Tom)
- Add RESTRICT/CASCADE to DROP commands (Rod)
- Add ALTER TABLE DROP for non-CHECK CONSTRAINT (Rod)
- Autodestroy sequence on DROP of table with SERIAL (Rod)
- Prevent column dropping if column is used by foreign key (Rod)
- Automatically drop constraints/functions when object is dropped (Rod)
- Add CREATE/DROP OPERATOR CLASS (Bill Studenmund, Tom)
- Add ALTER TABLE DROP COLUMN (Christopher, Tom, Hiroshi)
- Prevent inherited columns from being removed or renamed (Alvaro
- Herrera)
- Fix foreign key constraints to not error on intermediate database
- states (Stephan)
- Propagate column or table renaming to foreign key constraints
- Add CREATE OR REPLACE VIEW (Gavin, Neil, Tom)
- Add CREATE OR REPLACE RULE (Gavin, Neil, Tom)
- Have rules execute alphabetically, returning more predictable values
- (Tom)
- Triggers are now fired in alphabetical order (Tom)
- Add /contrib/adddepend to handle pre-7.3 object dependencies (Rod)
- Allow better casting when inserting/updating values (Tom)
- _________________________________________________________________
-
-Utility Commands
-
- Have COPY TO output embedded carriage returns and newlines as \r and
- \n (Tom)
- Allow DELIMITER in COPY FROM to be 8-bit clean (Tatsuo)
- Make pg_dump use ALTER TABLE ADD PRIMARY KEY, for performance (Neil)
- Disable brackets in multistatement rules (Bruce)
- Disable VACUUM from being called inside a function (Bruce)
- Allow dropdb and other scripts to use identifiers with spaces (Bruce)
- Restrict database comment changes to the current database
- Allow comments on operators, independent of the underlying function
- (Rod)
- Rollback SET commands in aborted transactions (Tom)
- EXPLAIN now outputs as a query (Tom)
- Display condition expressions and sort keys in EXPLAIN (Tom)
- Add 'SET LOCAL var = value' to set configuration variables for a
- single transaction (Tom)
- Allow ANALYZE to run in a transaction (Bruce)
- Improve COPY syntax using new WITH clauses, keep backward
- compatibility (Bruce)
- Fix pg_dump to consistently output tags in non-ASCII dumps (Bruce)
- Make foreign key constraints clearer in dump file (Rod)
- Add COMMENT ON CONSTRAINT (Rod)
- Allow COPY TO/FROM to specify column names (Brent Verner)
- Dump UNIQUE and PRIMARY KEY constraints as ALTER TABLE (Rod)
- Have SHOW output a query result (Joe)
- Generate failure on short COPY lines rather than pad NULLs (Neil)
- Fix CLUSTER to preserve all table attributes (Alvaro Herrera)
- New pg_settings table to view/modify GUC settings (Joe)
- Add smart quoting, portability improvements to pg_dump output (Peter)
- Dump serial columns out as SERIAL (Tom)
- Enable large file support, >2G for pg_dump (Peter, Philip Warner,
- Bruce)
- Disallow TRUNCATE on tables that are involved in referential
- constraints (Rod)
- Have TRUNCATE also auto-truncate the toast table of the relation (Tom)
- Add clusterdb utility that will auto-cluster an entire database
- based on previous CLUSTER operations (Alvaro Herrera)
- Overhaul pg_dumpall (Peter)
- Allow REINDEX of TOAST tables (Tom)
- Implemented START TRANSACTION, per SQL99 (Neil)
- Fix rare index corruption when a page split affects bulk delete (Tom)
- Fix ALTER TABLE ... ADD COLUMN for inheritance (Alvaro Herrera)
- _________________________________________________________________
-
-Data Types and Functions
-
- Fix factorial(0) to return 1 (Bruce)
- Date/time/timezone improvements (Thomas)
- Fix for array slice extraction (Tom)
- Fix extract/date_part to report proper microseconds for timestamp
- (Tatsuo)
- Allow text_substr() and bytea_substr() to read TOAST values more
- efficiently (John Gray)
- Add domain support (Rod)
- Make WITHOUT TIME ZONE the default for TIMESTAMP and TIME data types
- (Thomas)
- Allow alternate storage scheme of 64-bit integers for date/time types
- using --enable-integer-datetimes in configure (Thomas)
- Make timezone(timestamptz) return timestamp rather than a string
- (Thomas)
- Allow fractional seconds in date/time types for dates prior to 1BC
- (Thomas)
- Limit timestamp data types to 6 decimal places of precision (Thomas)
- Change timezone conversion functions from timetz() to timezone()
- (Thomas)
- Add configuration variables datestyle and timezone (Tom)
- Add OVERLAY(), which allows substitution of a substring in a string
- (Thomas)
- Add SIMILAR TO (Thomas, Tom)
- Add regular expression SUBSTRING(string FROM pat FOR escape) (Thomas)
- Add LOCALTIME and LOCALTIMESTAMP functions (Thomas)
- Add named composite types using CREATE TYPE typename AS (column)
- (Joe)
- Allow composite type definition in the table alias clause (Joe)
- Add new API to simplify creation of C language table functions (Joe)
- Remove ODBC-compatible empty parentheses from calls to SQL99
- functions for which these parentheses do not match the standard
- (Thomas)
- Allow macaddr data type to accept 12 hex digits with no separators
- (Mike Wyer)
- Add CREATE/DROP CAST (Peter)
- Add IS DISTINCT FROM operator (Thomas)
- Add SQL99 TREAT() function, synonym for CAST() (Thomas)
- Add pg_backend_pid() to output backend pid (Bruce)
- Add IS OF / IS NOT OF type predicate (Thomas)
- Allow bit string constants without fully-specified length (Thomas)
- Allow conversion between 8-byte integers and bit strings (Thomas)
- Implement hex literal conversion to bit string literal (Thomas)
- Allow table functions to appear in the FROM clause (Joe)
- Increase maximum number of function parameters to 32 (Bruce)
- No longer automatically create index for SERIAL column (Tom)
- Add current_database() (Rod)
- Fix cash_words() to not overflow buffer (Tom)
- Add functions replace(), split_part(), to_hex() (Joe)
- Fix LIKE for bytea as a right-hand argument (Joe)
- Prevent crashes caused by SELECT cash_out(2) (Tom)
- Fix to_char(1,'FM999.99') to return a period (Karel)
- Fix trigger/type/language functions returning OPAQUE to return
- proper type (Tom)
- _________________________________________________________________
-
-Internationalization
-
- Add additional encodings: Korean (JOHAB), Thai (WIN874), Vietnamese
- (TCVN), Arabic (WIN1256), Simplified Chinese (GBK), Korean (UHC)
- (Eiji Tokuya)
- Enable locale support by default (Peter)
- Add locale variables (Peter)
- Escape byes >= 0x7f for multibyte in PQescapeBytea/PQunescapeBytea
- (Tatsuo)
- Add locale awareness to regular expression character classes
- Enable multibyte support by default (Tatso)
- Add GB18030 multibyte support (Bill Huang)
- Add CREATE/DROP CONVERSION, allowing loadable encodings (Tatsuo,
- Kaori)
- Add pg_conversion table (Tatsuo)
- Add SQL99 CONVERT() function (Tatsuo)
- pg_dumpall, pg_controldata, and pg_resetxlog now national-language
- aware (Peter)
- New and updated translations
- _________________________________________________________________
-
-Server-side Languages
-
- Allow recursive SQL function (Peter)
- Change PL/Tcl build to use configured compiler and Makefile.shlib
- (Peter)
- Overhaul the PL/pgSQL FOUND variable to be more Oracle-compatible
- (Neil, Tom)
- Allow PL/pgSQL to handle quoted identifiers (Tom)
- Allow set-returning PL/pgSQL functions (Neil)
- Make PL/pgSQL schema-aware (Joe)
- Remove some memory leaks (Nigel J. Andrews, Tom)
- _________________________________________________________________
-
-Psql
-
- Don't lowercase psql \connect database name for 7.2.0 compatibility
- (Tom)
- Add psql \timing to time user queries (Greg Sabino Mullane)
- Have psql \d show index information (Greg Sabino Mullane)
- New psql \dD shows domains (Jonathan Eisler)
- Allow psql to show rules on views (Paul ?)
- Fix for psql variable substitution (Tom)
- Allow psql \d to show temporary table structure (Tom)
- Allow psql \d to show foreign keys (Rod)
- Fix \? to honor \pset pager (Bruce)
- Have psql reports its version number on startup (Tom)
- Allow \copy to specify column names (Tom)
- _________________________________________________________________
-
-Libpq
-
- Add $HOME/.pgpass to store host/user password combinations (Alvaro
- Herrera)
- Add PQunescapeBytea() function to libpq (Patrick Welche)
- Fix for sending large queries over non-blocking connections
- (Bernhard Herzog)
- Fix for libpq using timers on Win9X (David Ford)
- Allow libpq notify to handle servers with different-length
- identifiers (Tom)
- Add libpq PQescapeString() and PQescapeBytea() to Win32 (Bruce)
- Fix for SSL with non-blocking connections (Jack Bates)
- Add libpq connection timeout parameter (Denis A Ustimenko)
- _________________________________________________________________
-
-JDBC
-
- Allow JDBC to compile with JDK 1.4 (Dave)
- Add JDBC 3 support (Barry)
- Allows JDBC to set loglevel by adding ?loglevel=X to the connection
- URL (Barry)
- Add Driver.info() message that prints out the version number (Barry)
- Add updateable result sets (Raghu Nidagal, Dave)
- Add support for callable statements (Paul Bethe)
- Add query cancel capability
- Add refresh row (Dave)
- Fix MD5 encryption handling for multibyte servers (Jun Kawai)
- Add support for prepared statements (Barry)
- _________________________________________________________________
-
-Miscellaneous Interfaces
-
- Fixed ECPG bug concerning octal numbers in single quotes (Michael)
- Move src/interfaces/libpgeasy to http://gborg.postgresql.org (Marc,
- Bruce)
- Improve Python interface (Elliot Lee, Andrew Johnson, Greg Copeland)
- Add libpgtcl connection close event (Gerhard Hintermayer)
- Move src/interfaces/libpq++ to http://gborg.postgresql.org (Marc,
- Bruce)
- Move src/interfaces/odbc to http://gborg.postgresql.org (Marc)
- Move src/interfaces/libpgeasy to http://gborg.postgresql.org (Marc,
- Bruce)
- Move src/interfaces/perl5 to http://gborg.postgresql.org (Marc,
- Bruce)
- Remove src/bin/pgaccess from main tree, now at
- http://www.pgaccess.org (Bruce)
- Add pg_on_connection_loss command to libpgtcl (Gerhard Hintermayer,
- Tom)
- _________________________________________________________________
-
-Source Code
-
- Fix for parallel make (Peter)
- AIX fixes for linking Tcl (Andreas Zeugswetter)
- Allow PL/Perl to build under Cygwin (Jason Tishler)
- Improve MIPS compiles (Peter, Oliver Elphick)
- Require Autoconf version 2.53 (Peter)
- Require readline and zlib by default in configure (Peter)
- Allow Solaris to use Intimate Shared Memory (ISM), for performance
- (Scott Brunza, P.J. Josh Rovero)
- Always enable syslog in compile, remove --enable-syslog option
- (Tatsuo)
- Always enable multibyte in compile, remove --enable-multibyte option
- (Tatsuo)
- Always enable locale in compile, remove --enable-locale option
- (Peter)
- Fix for Win9x DLL creation (Magnus Naeslund)
- Fix for link() usage by WAL code on Win32, BeOS (Jason Tishler)
- Add sys/types.h to c.h, remove from main files (Peter, Bruce)
- Fix AIX hang on SMP machines (Tomoyuki Niijima)
- AIX SMP hang fix (Tomoyuki Niijima)
- Fix pre-1970 date handling on newer glibc libraries (Tom)
- Fix PowerPC SMP locking (Tom)
- Prevent gcc -ffast-math from being used (Peter, Tom)
- Bison >= 1.50 now required for developer builds
- Kerberos 5 support now builds with Heimdal (Peter)
- Add appendix in the User's Guide which lists SQL features (Thomas)
- Improve loadable module linking to use RTLD_NOW (Tom)
- New error levels WARNING, INFO, LOG, DEBUG[1-5] (Bruce)
- New src/port directory holds replaced libc functions (Peter, Bruce)
- New pg_namespace system catalog for schemas (Tom)
- Add pg_class.relnamespace for schemas (Tom)
- Add pg_type.typnamespace for schemas (Tom)
- Add pg_proc.pronamespace for schemas (Tom)
- Restructure aggregates to have pg_proc entries (Tom)
- System relations now have their own namespace, pg_* test not required
- (Fernando Nasser)
- Rename TOAST index names to be *_index rather than *_idx (Neil)
- Add namespaces for operators, opclasses (Tom)
- Add additional checks to server control file (Thomas)
- New Polish FAQ (Marcin Mazurek)
- Add Posix semaphore support (Tom)
- Document need for reindex (Bruce)
- Rename some internal identifiers to simplify Win32 compile (Jan,
- Katherine Ward)
- Add documentation on computing disk space (Bruce)
- Remove KSQO from GUC (Bruce)
- Fix memory leak in rtree (Kenneth Been)
- Modify a few error messages for consistency (Bruce)
- Remove unused system table columns (Peter)
- Make system columns NOT NULL where appropriate (Tom)
- Clean up use of sprintf in favor of snprintf() (Neil, Jukka Holappa)
- Remove OPAQUE and create specific subtypes (Tom)
- Cleanups in array internal handling (Joe, Tom)
- Disallow pg_atoi('') (Bruce)
- Remove parameter wal_files because WAL files are now recycled (Bruce)
- Add version numbers to heap pages (Tom)
- _________________________________________________________________
-
-Contrib
-
- Allow inet arrays in /contrib/array (Neil)
- Gist fixes (Teodor Sigaev, Neil)
- Upgrade /contrib/mysql
- Add /contrib/dbsize which shows table sizes without vacuum (Peter)
- Add /contrib/intagg, integer aggregator routines (mlw)
- Improve /contrib/oid2name (Neil, Bruce)
- Improve /contrib/tsearch (Oleg, Teodor Sigaev)
- Cleanups of /contrib/rserver (Alexey V. Borzov)
- Update /contrib/oracle conversion utility (Gilles Darold)
- Update /contrib/dblink (Joe)
- Improve options supported by /contrib/vacuumlo (Mario Weilguni)
- Improvements to /contrib/intarray (Oleg, Teodor Sigaev, Andrey
- Oktyabrski)
- Add /contrib/reindexdb utility (Shaun Thomas)
- Add indexing to /contrib/isbn_issn (Dan Weston)
- Add /contrib/dbmirror (Steven Singer)
- Improve /contrib/pgbench (Neil)
- Add /contrib/tablefunc table function examples (Joe)
- Add /contrib/ltree data type for tree structures (Teodor Sigaev,
- Oleg Bartunov)
- Move /contrib/pg_controldata, pg_resetxlog into main tree (Bruce)
- Fixes to /contrib/cube (Bruno Wolff)
- Improve /contrib/fulltextindex (Christopher)
- _________________________________________________________________
-
- Release 7.2.4
-
- Release date: 2003-01-30
-
- This has a variety of fixes from 7.2.3, including fixes to prevent
- possible data loss.
- _________________________________________________________________
-
- Migration to version 7.2.4
-
- A dump/restore is *not* required for those running 7.2.X.
- _________________________________________________________________
-
- Changes
-
- Fix some additional cases of VACUUM "No one parent tuple was found"
- error
- Prevent VACUUM from being called inside a function (Bruce)
- Ensure pg_clog updates are sync'd to disk before marking checkpoint
- complete
- Avoid integer overflow during large hash joins
- Make GROUP commands work when pg_group.grolist is large enough
- to be toasted
- Fix errors in datetime tables; some timezone names weren't being
- recognized
- Fix integer overflows in circle_poly(), path_encode(), path_add()
- (Neil)
- Repair long-standing logic errors in lseg_eq(), lseg_ne(), lseg_center()
- _________________________________________________________________
-
- Release 7.2.3
-
- Release date: 2002-10-01
-
- This has a variety of fixes from 7.2.2, including fixes to prevent
- possible data loss.
- _________________________________________________________________
-
- Migration to version 7.2.3
-
- A dump/restore is *not* required for those running 7.2.X.
- _________________________________________________________________
-
- Changes
-
- Prevent possible compressed transaction log loss (Tom)
- Prevent non-superuser from increasing most recent vacuum info (Tom)
- Handle pre-1970 date values in newer versions of glibc (Tom)
- Fix possible hang during server shutdown
- Prevent spinlock hangs on SMP PPC machines (Tomoyuki Niijima)
- Fix pg_dump to properly dump FULL JOIN USING (Tom)
- _________________________________________________________________
-
- Release 7.2.2
-
- Release date: 2002-08-23
-
- This has a variety of fixes from 7.2.1.
- _________________________________________________________________
-
- Migration to version 7.2.2
-
- A dump/restore is *not* required for those running 7.2.X.
- _________________________________________________________________
-
- Changes
-
- Allow EXECUTE of "CREATE TABLE AS ... SELECT" in PL/pgSQL (Tom)
- Fix for compressed transaction log id wraparound (Tom)
- Fix PQescapeBytea/PQunescapeBytea so that they handle bytes > 0x7f (Ta
- tsuo)
- Fix for psql and pg_dump crashing when invoked with non-existand long
- options (Tatsuo)
- Fix crash when invoking geometric operators (Tom)
- Allow OPEN cursor(args) (Tom)
- Fix for rtree_gist index build (Teodor)
- Fix for dumping user-defined aggregates (Tom)
- Contrib/intarray fixes (Oleg)
- Fix for complex UNION/EXCEPT/INTERSECT queries using parens (Tom)
- Fix to pg_convert (Tatsuo)
- Fix for crash with long DATA strings (Thomes, Neil)
- Fix for repeat(), lpad(), rpad() and long strings (Neil)
- _________________________________________________________________
-
- Release 7.2.1
-
- Release date: 2002-03-21
-
- This has a variety of fixes from 7.2.
- _________________________________________________________________
-
- Migration to version 7.2.1
-
- A dump/restore is *not* required for those running 7.2.
- _________________________________________________________________
-
- Changes
-
- Ensure that sequence counters do not go backwards after a crash (Tom)
- Fix pgaccess kanji-coversion key binding (Tatsuo)
- Optimizer improvements (Tom)
- Cash I/O improvements (Tom)
- New Russian FAQ
- Compile fix for missing AuthBlockSig (Heiko)
- Additional time zones and time zone fixes (Thomas)
- Allow psql \connect to handle mixed case database and user names (Tom)
- Return proper OID on command completion even with ON INSERT rules (Tom
- )
- Allow COPY FROM to use 8-bit DELIMITERS (Tatsuo)
- Fix bug in extract/date_part for milliseconds/microseconds (Tatsuo)
- Improve handling of multiple UNIONs with different lengths (Tom)
- contrib/btree_gist improvements (Teodor Sigaev)
- contrib/tsearch dictionary improvements, see README.tsearch for
- an additional installation step (Thomas T. Thai, Teodor Sigaev)
- Fix for array subscripts handling (Tom)
- Allow EXECUTE of "CREATE TABLE AS ... SELECT" in PL/pgSQL (Tom)
- _________________________________________________________________
-
- Release 7.2
-
- Release date: 2002-02-04
- _________________________________________________________________
-
- Overview
-
- This release improves PostgreSQL for use in high-volume applications.
-
- Major changes in this release:
-
- VACUUM
- Vacuuming no longer locks tables, thus allowing normal user
- access during the vacuum. A new "VACUUM FULL" command does
- old-style vacuum by locking the table and shrinking the on-disk
- copy of the table.
-
- Transactions
- There is no longer a problem with installations that exceed
- four billion transactions.
-
- OIDs
- OIDs are now optional. Users can now create tables without OIDs
- for cases where OID usage is excessive.
-
- Optimizer
- The system now computes histogram column statistics during
- "ANALYZE", allowing much better optimizer choices.
-
- Security
- A new MD5 encryption option allows more secure storage and
- transfer of passwords. A new Unix-domain socket authentication
- option is available on Linux and BSD systems.
-
- Statistics
- Administrators can use the new table access statistics module
- to get fine-grained information about table and index usage.
-
- Internationalization
- Program and library messages can now be displayed in several
- languages.
- _________________________________________________________________
-
- Migration to version 7.2
-
- A dump/restore using "pg_dump" is required for those wishing to
- migrate data from any previous release.
-
- Observe the following incompatibilities:
-
- * The semantics of the "VACUUM" command have changed in this
- release. You may wish to update your maintenance procedures
- accordingly.
- * In this release, comparisons using = NULL will always return false
- (or NULL, more precisely). Previous releases automatically
- transformed this syntax to IS NULL. The old behavior can be
- re-enabled using a "postgresql.conf" parameter.
- * The "pg_hba.conf" and "pg_ident.conf" configuration is now only
- reloaded after receiving a SIGHUP signal, not with each
- connection.
- * The function "octet_length()" now returns the uncompressed data
- length.
- * The date/time value 'current' is no longer available. You will
- need to rewrite your applications.
- * The timestamp(), time(), and interval() functions are no longer
- available. Instead of timestamp(), use timestamp 'string' or CAST.
-
- The SELECT ... LIMIT #,# syntax will be removed in the next release.
- You should change your queries to use separate LIMIT and OFFSET
- clauses, e.g. LIMIT 10 OFFSET 20.
- _________________________________________________________________
-
- Changes
-
-Server Operation
-
- Create temporary files in a separate directory (Bruce)
- Delete orphaned temporary files on postmaster startup (Bruce)
- Added unique indexes to some system tables (Tom)
- System table operator reorganization (Oleg Bartunov, Teodor Sigaev, To
- m)
- Renamed pg_log to pg_clog (Tom)
- Enable SIGTERM, SIGQUIT to kill backends (Jan)
- Removed compile-time limit on number of backends (Tom)
- Better cleanup for semaphore resource failure (Tatsuo, Tom)
- Allow safe transaction ID wraparound (Tom)
- Removed OIDs from some system tables (Tom)
- Removed "triggered data change violation" error check (Tom)
- SPI portal creation of prepared/saved plans (Jan)
- Allow SPI column functions to work for system columns (Tom)
- Long value compression improvement (Tom)
- Statistics collector for table, index access (Jan)
- Truncate extra-long sequence names to a reasonable value (Tom)
- Measure transaction times in milliseconds (Thomas)
- Fix TID sequential scans (Hiroshi)
- Superuser ID now fixed at 1 (Peter E)
- New pg_ctl "reload" option (Tom)
- _________________________________________________________________
-
-Performance
-
- Optimizer improvements (Tom)
- New histogram column statistics for optimizer (Tom)
- Reuse write-ahead log files rather than discarding them (Tom)
- Cache improvements (Tom)
- IS NULL, IS NOT NULL optimizer improvement (Tom)
- Improve lock manager to reduce lock contention (Tom)
- Keep relcache entries for index access support functions (Tom)
- Allow better selectivity with NaN and infinities in NUMERIC (Tom)
- R-tree performance improvements (Kenneth Been)
- B-tree splits more efficient (Tom)
- _________________________________________________________________
-
-Privileges
-
- Change UPDATE, DELETE permissions to be distinct (Peter E)
- New REFERENCES, TRIGGER privileges (Peter E)
- Allow GRANT/REVOKE to/from more than one user at a time (Peter E)
- New has_table_privilege() function (Joe Conway)
- Allow non-superuser to vacuum database (Tom)
- New SET SESSION AUTHORIZATION command (Peter E)
- Fix bug in privilege modifications on newly created tables (Tom)
- Disallow access to pg_statistic for non-superuser, add user-accessible
- views (Tom)
- _________________________________________________________________
-
-Client Authentication
-
- Fork postmaster before doing authentication to prevent hangs (Peter E)
- Add ident authentication over Unix domain sockets on Linux, *BSD (Helg
- e Bahmann, Oliver Elphick, Teodor Sigaev, Bruce)
- Add a password authentication method that uses MD5 encryption (Bruce)
- Allow encryption of stored passwords using MD5 (Bruce)
- PAM authentication (Dominic J. Eidson)
- Load pg_hba.conf and pg_ident.conf only on startup and SIGHUP (Bruce)
- _________________________________________________________________
-
-Server Configuration
-
- Interpretation of some time zone abbreviations as Australian rather th
- an North American now settable at run time (Bruce)
- New parameter to set default transaction isolation level (Peter E)
- New parameter to enable conversion of "expr = NULL" into "expr IS NULL
- ", off by default (Peter E)
- New parameter to control memory usage by VACUUM (Tom)
- New parameter to set client authentication timeout (Tom)
- New parameter to set maximum number of open files (Tom)
- _________________________________________________________________
-
-Queries
-
- Statements added by INSERT rules now execute after the INSERT (Jan)
- Prevent unadorned relation names in target list (Bruce)
- NULLs now sort after all normal values in ORDER BY (Tom)
- New IS UNKNOWN, IS NOT UNKNOWN Boolean tests (Tom)
- New SHARE UPDATE EXCLUSIVE lock mode (Tom)
- New EXPLAIN ANALYZE command that shows run times and row counts (Marti
- jn van Oosterhout)
- Fix problem with LIMIT and subqueries (Tom)
- Fix for LIMIT, DISTINCT ON pushed into subqueries (Tom)
- Fix nested EXCEPT/INTERSECT (Tom)
- _________________________________________________________________
-
-Schema Manipulation
-
- Fix SERIAL in temporary tables (Bruce)
- Allow temporary sequences (Bruce)
- Sequences now use int8 internally (Tom)
- New SERIAL8 creates int8 columns with sequences, default still SERIAL4
- (Tom)
- Make OIDs optional using WITHOUT OIDS (Tom)
- Add %TYPE syntax to CREATE TYPE (Ian Lance Taylor)
- Add ALTER TABLE / DROP CONSTRAINT for CHECK constraints (Christopher K
- ings-Lynne)
- New CREATE OR REPLACE FUNCTION to alter existing function (preserving
- the function OID) (Gavin Sherry)
- Add ALTER TABLE / ADD [ UNIQUE | PRIMARY ] (Christopher Kings-Lynne)
- Allow column renaming in views
- Make ALTER TABLE / RENAME COLUMN update column names of indexes (Brent
- Verner)
- Fix for ALTER TABLE / ADD CONSTRAINT ... CHECK with inherited tables (
- Stephan Szabo)
- ALTER TABLE RENAME update foreign-key trigger arguments correctly (Bre
- nt Verner)
- DROP AGGREGATE and COMMENT ON AGGREGATE now accept an aggtype (Tom)
- Add automatic return type data casting for SQL functions (Tom)
- Allow GiST indexes to handle NULLs and multikey indexes (Oleg Bartunov
- , Teodor Sigaev, Tom)
- Enable partial indexes (Martijn van Oosterhout)
- _________________________________________________________________
-
-Utility Commands
-
- Add RESET ALL, SHOW ALL (Marko Kreen)
- CREATE/ALTER USER/GROUP now allow options in any order (Vince)
- Add LOCK A, B, C functionality (Neil Padgett)
- New ENCRYPTED/UNENCRYPTED option to CREATE/ALTER USER (Bruce)
- New light-weight VACUUM does not lock table; old semantics are availab
- le as VACUUM FULL (Tom)
- Disable COPY TO/FROM on views (Bruce)
- COPY DELIMITERS string must be exactly one character (Tom)
- VACUUM warning about index tuples fewer than heap now only appears whe
- n appropriate (Martijn van Oosterhout)
- Fix permission checks for CREATE INDEX (Tom)
- Disallow inappropriate use of CREATE/DROP INDEX/TRIGGER/VIEW (Tom)
- _________________________________________________________________
-
-Data Types and Functions
-
- SUM(), AVG(), COUNT() now uses int8 internally for speed (Tom)
- Add convert(), convert2() (Tatsuo)
- New function bit_length() (Peter E)
- Make the "n" in CHAR(n)/VARCHAR(n) represents letters, not bytes (Tats
- uo)
- CHAR(), VARCHAR() now reject strings that are too long (Peter E)
- BIT VARYING now rejects bit strings that are too long (Peter E)
- BIT now rejects bit strings that do not match declared size (Peter E)
- INET, CIDR text conversion functions (Alex Pilosov)
- INET, CIDR operators << and <<= indexable (Alex Pilosov)
- Bytea \### now requires valid three digit octal number
- Bytea comparison improvements, now supports =, <>, >, >=, <, and <=
- Bytea now supports B-tree indexes
- Bytea now supports LIKE, LIKE...ESCAPE, NOT LIKE, NOT LIKE...ESCAPE
- Bytea now supports concatenation
- New bytea functions: position, substring, trim, btrim, and length
- New encode() function mode, "escaped", converts minimally escaped byte
- a to/from text
- Add pg_database_encoding_max_length() (Tatsuo)
- Add pg_client_encoding() function (Tatsuo)
- now() returns time with millisecond precision (Thomas)
- New TIMESTAMP WITHOUT TIMEZONE data type (Thomas)
- Add ISO date/time specification with "T", yyyy-mm-ddThh:mm:ss (Thomas)
- New xid/int comparison functions (Hiroshi)
- Add precision to TIME, TIMESTAMP, and INVERVAL data types (Thomas)
- Modify type coercion logic to attempt binary-compatible functions firs
- t (Tom)
- New encode() function installed by default (Marko Kreen)
- Improved to_*() conversion functions (Karel Zak)
- Optimize LIKE/ILIKE when using single-byte encodings (Tatsuo)
- New functions in contrib/pgcrypto: crypt(), hmac(), encrypt(), gen_sal
- t() (Marko Kreen)
- Correct description of translate() function (Bruce)
- Add INTERVAL argument for SET TIME ZONE (Thomas)
- Add INTERVAL YEAR TO MONTH (etc.) syntax (Thomas)
- Optimize length functions when using single-byte encodings (Tatsuo)
- Fix path_inter, path_distance, path_length, dist_ppath to handle close
- d paths (Curtis Barrett, Tom)
- octet_length(text) now returns non-compressed length (Tatsuo, Bruce)
- Handle "July" full name in date/time literals (Greg Sabino Mullane)
- Some datatype() function calls now evaluated differently
- Add support for Julian and ISO time specifications (Thomas)
- _________________________________________________________________
-
-Internationalization
-
- National language support in psql, pg_dump, libpq, and server (Peter E
- )
- Message translations in Chinese (simplified, traditional), Czech, Fren
- ch, German, Hungarian, Russian, Swedish (Peter E, Serguei A. Mokhov, K
- arel Zak, Weiping He, Zhenbang Wei, Kovacs Zoltan)
- Make trim, ltrim, rtrim, btrim, lpad, rpad, translate multibyte aware
- (Tatsuo)
- Add LATIN5,6,7,8,9,10 support (Tatsuo)
- Add ISO 8859-5,6,7,8 support (Tatsuo)
- Correct LATIN5 to mean ISO-8859-9, not ISO-8859-5 (Tatsuo)
- Make mic2ascii() non-ASCII aware (Tatsuo)
- Reject invalid multibyte character sequences (Tatsuo)
- _________________________________________________________________
-
-PL/pgSQL
-
- Now uses portals for SELECT loops, allowing huge result sets (Jan)
- CURSOR and REFCURSOR support (Jan)
- Can now return open cursors (Jan)
- Add ELSEIF (Klaus Reger)
- Improve PL/pgSQL error reporting, including location of error (Tom)
- Allow IS or FOR key words in cursor declaration, for compatibility (Br
- uce)
- Fix for SELECT ... FOR UPDATE (Tom)
- Fix for PERFORM returning multiple rows (Tom)
- Make PL/pgSQL use the server's type coercion code (Tom)
- Memory leak fix (Jan, Tom)
- Make trailing semicolon optional (Tom)
- _________________________________________________________________
-
-PL/Perl
-
- New untrusted PL/Perl (Alex Pilosov)
- PL/Perl is now built on some platforms even if libperl is not shared (
- Peter E)
- _________________________________________________________________
-
-PL/Tcl
-
- Now reports errorInfo (Vsevolod Lobko)
- Add spi_lastoid function (bob@redivi.com)
- _________________________________________________________________
-
-PL/Python
-
- ...is new (Andrew Bosma)
- _________________________________________________________________
-
-Psql
-
- \d displays indexes in unique, primary groupings (Christopher Kings-Ly
- nne)
- Allow trailing semicolons in backslash commands (Greg Sabino Mullane)
- Read password from /dev/tty if possible
- Force new password prompt when changing user and database (Tatsuo, Tom
- )
- Format the correct number of columns for Unicode (Patrice)
- _________________________________________________________________
-
-Libpq
-
- New function PQescapeString() to escape quotes in command strings (Flo
- rian Weimer)
- New function PQescapeBytea() escapes binary strings for use as SQL str
- ing literals
- _________________________________________________________________
-
-JDBC
-
- Return OID of INSERT (Ken K)
- Handle more data types (Ken K)
- Handle single quotes and newlines in strings (Ken K)
- Handle NULL variables (Ken K)
- Fix for time zone handling (Barry Lind)
- Improved Druid support
- Allow eight-bit characters with non-multibyte server (Barry Lind)
- Support BIT, BINARY types (Ned Wolpert)
- Reduce memory usage (Michael Stephens, Dave Cramer)
- Update DatabaseMetaData (Peter E)
- Add DatabaseMetaData.getCatalogs() (Peter E)
- Encoding fixes (Anders Bengtsson)
- Get/setCatalog methods (Jason Davies)
- DatabaseMetaData.getColumns() now returns column defaults (Jason Davie
- s)
- DatabaseMetaData.getColumns() performance improvement (Jeroen van Vian
- en)
- Some JDBC1 and JDBC2 merging (Anders Bengtsson)
- Transaction performance improvements (Barry Lind)
- Array fixes (Greg Zoller)
- Serialize addition
- Fix batch processing (Rene Pijlman)
- ExecSQL method reorganization (Anders Bengtsson)
- GetColumn() fixes (Jeroen van Vianen)
- Fix isWriteable() function (Rene Pijlman)
- Improved passage of JDBC2 conformance tests (Rene Pijlman)
- Add bytea type capability (Barry Lind)
- Add isNullable() (Rene Pijlman)
- JDBC date/time test suite fixes (Liam Stewart)
- Fix for SELECT 'id' AS xxx FROM table (Dave Cramer)
- Fix DatabaseMetaData to show precision properly (Mark Lillywhite)
- New getImported/getExported keys (Jason Davies)
- MD5 password encryption support (Jeremy Wohl)
- Fix to actually use type cache (Ned Wolpert)
- _________________________________________________________________
-
-ODBC
-
- Remove query size limit (Hiroshi)
- Remove text field size limit (Hiroshi)
- Fix for SQLPrimaryKeys in multibyte mode (Hiroshi)
- Allow ODBC procedure calls (Hiroshi)
- Improve boolean handing (Aidan Mountford)
- Most configuration options on setable via DSN (Hiroshi)
- Multibyte, performance fixes (Hiroshi)
- Allow driver to be used with iODBC or unixODBC (Peter E)
- MD5 password encryption support (Bruce)
- Add more compatibility functions to odbc.sql (Peter E)
- _________________________________________________________________
-
-ECPG
-
- EXECUTE ... INTO implemented (Christof Petig)
- Multiple row descriptor support (e.g. CARDINALITY) (Christof Petig)
- Fix for GRANT parameters (Lee Kindness)
- Fix INITIALLY DEFERRED bug
- Various bug fixes (Michael, Christof Petig)
- Auto allocation for indicator variable arrays (int *ind_p=NULL)
- Auto allocation for string arrays (char **foo_pp=NULL)
- ECPGfree_auto_mem fixed
- All function names with external linkage are now prefixed by ECPG
- Fixes for arrays of structures (Michael)
- _________________________________________________________________
-
-Misc. Interfaces
-
- Python fix fetchone() (Gerhard Haring)
- Use UTF, Unicode in Tcl where appropriate (Vsevolod Lobko, Reinhard Ma
- x)
- Add Tcl COPY TO/FROM (ljb)
- Prevent output of default index op class in pg_dump (Tom)
- Fix libpgeasy memory leak (Bruce)
- _________________________________________________________________
-
-Build and Install
-
- Configure, dynamic loader, and shared library fixes (Peter E)
- Fixes in QNX 4 port (Bernd Tegge)
- Fixes in Cygwin and Win32 ports (Jason Tishler, Gerhard Haring, Dmitry
- Yurtaev, Darko Prenosil, Mikhail Terekhov)
- Fix for Win32 socket communication failures (Magnus, Mikhail Terekhov)
- Hurd compile fix (Oliver Elphick)
- BeOS fixes (Cyril Velter)
- Remove configure --enable-unicode-conversion, now enabled by multibyte
- (Tatsuo)
- AIX fixes (Tatsuo, Andreas)
- Fix parallel make (Peter E)
- Install SQL language manual pages into OS-specific directories (Peter
- E)
- Rename config.h to pg_config.h (Peter E)
- Reorganize installation layout of header files (Peter E)
- _________________________________________________________________
-
-Source Code
-
- Remove SEP_CHAR (Bruce)
- New GUC hooks (Tom)
- Merge GUC and command line handling (Marko Kreen)
- Remove EXTEND INDEX (Martijn van Oosterhout, Tom)
- New pgjindent utility to indent java code (Bruce)
- Remove define of true/false when compiling under C++ (Leandro Fanzone,
- Tom)
- pgindent fixes (Bruce, Tom)
- Replace strcasecmp() with strcmp() where appropriate (Peter E)
- Dynahash portability improvements (Tom)
- Add 'volatile' usage in spinlock structures
- Improve signal handling logic (Tom)
- _________________________________________________________________
-
-Contrib
-
- New contrib/rtree_gist (Oleg Bartunov, Teodor Sigaev)
- New contrib/tsearch full-text indexing (Oleg, Teodor Sigaev)
- Add contrib/dblink for remote database access (Joe Conway)
- contrib/ora2pg Oracle conversion utility (Gilles Darold)
- contrib/xml XML conversion utility (John Gray)
- contrib/fulltextindex fixes (Christopher Kings-Lynne)
- New contrib/fuzzystrmatch with levenshtein and metaphone, soundex merg
- ed (Joe Conway)
- Add contrib/intarray boolean queries, binary search, fixes (Oleg Bartu
- nov)
- New pg_upgrade utility (Bruce)
- Add new pg_resetxlog options (Bruce, Tom)
- _________________________________________________________________
-
- Release 7.1.3
-
- Release date: 2001-08-15
- _________________________________________________________________
-
- Migration to version 7.1.3
-
- A dump/restore is *not* required for those running 7.1.X.
- _________________________________________________________________
-
- Changes
-
-Remove unused WAL segements of large transactions (Tom)
-Multiaction rule fix (Tom)
-PL/pgSQL memory allocation fix (Jan)
-VACUUM buffer fix (Tom)
-Regression test fixes (Tom)
-pg_dump fixes for GRANT/REVOKE/comments on views, user-defined types (Tom)
-Fix subselects with DISTINCT ON or LIMIT (Tom)
-BeOS fix
-Disable COPY TO/FROM a view (Tom)
-Cygwin build (Jason Tishler)
-
- _________________________________________________________________
-
- Release 7.1.2
-
- Release date: 2001-05-11
-
- This has one fix from 7.1.1.
- _________________________________________________________________
-
- Migration to version 7.1.2
-
- A dump/restore is *not* required for those running 7.1.X.
- _________________________________________________________________
-
- Changes
-
-Fix PL/pgSQL SELECTs when returning no rows
-Fix for psql backslash core dump
-Referential integrity permission fix
-Optimizer fixes
-pg_dump cleanups
-
- _________________________________________________________________
-
- Release 7.1.1
-
- Release date: 2001-05-05
-
- This has a variety of fixes from 7.1.
- _________________________________________________________________
-
- Migration to version 7.1.1
-
- A dump/restore is *not* required for those running 7.1.
- _________________________________________________________________
-
- Changes
-
-Fix for numeric MODULO operator (Tom)
-pg_dump fixes (Philip)
-pg_dump can dump 7.0 databases (Philip)
-readline 4.2 fixes (Peter E)
-JOIN fixes (Tom)
-AIX, MSWIN, VAX, N32K fixes (Tom)
-Multibytes fixes (Tom)
-Unicode fixes (Tatsuo)
-Optimizer improvements (Tom)
-Fix for whole tuples in functions (Tom)
-Fix for pg_ctl and option strings with spaces (Peter E)
-ODBC fixes (Hiroshi)
-EXTRACT can now take string argument (Thomas)
-Python fixes (Darcy)
-
- _________________________________________________________________
-
- Release 7.1
-
- Release date: 2001-04-13
-
- This release focuses on removing limitations that have existed in the
- PostgreSQL code for many years.
-
- Major changes in this release:
-
- Write-ahead Log (WAL)
- To maintain database consistency in case of an operating system
- crash, previous releases of PostgreSQL have forced all data
- modifications to disk before each transaction commit. With WAL,
- only one log file must be flushed to disk, greatly improving
- performance. If you have been using -F in previous releases to
- disable disk flushes, you may want to consider discontinuing
- its use.
-
- TOAST
- TOAST - Previous releases had a compiled-in row length limit,
- typically 8k - 32k. This limit made storage of long text fields
- difficult. With TOAST, long rows of any length can be stored
- with good performance.
-
- Outer Joins
- We now support outer joins. The UNION/NOT IN workaround for
- outer joins is no longer required. We use the SQL92 outer join
- syntax.
-
- Function Manager
- The previous C function manager did not handle null values
- properly, nor did it support 64-bit CPU's (Alpha). The new
- function manager does. You can continue using your old custom
- functions, but you may want to rewrite them in the future to
- use the new function manager call interface.
-
- Complex Queries
- A large number of complex queries that were unsupported in
- previous releases now work. Many combinations of views,
- aggregates, UNION, LIMIT, cursors, subqueries, and inherited
- tables now work properly. Inherited tables are now accessed by
- default. Subqueries in FROM are now supported.
- _________________________________________________________________
-
- Migration to version 7.1
-
- A dump/restore using pg_dump is required for those wishing to migrate
- data from any previous release.
- _________________________________________________________________
-
- Changes
-
-Bug Fixes
----------
-Many multibyte/Unicode/locale fixes (Tatsuo and others)
-More reliable ALTER TABLE RENAME (Tom)
-Kerberos V fixes (David Wragg)
-Fix for INSERT INTO...SELECT where targetlist has subqueries (Tom)
-Prompt username/password on standard error (Bruce)
-Large objects inv_read/inv_write fixes (Tom)
-Fixes for to_char(), to_date(), to_ascii(), and to_timestamp() (Karel,
- Daniel Baldoni)
-Prevent query expressions from leaking memory (Tom)
-Allow UPDATE of arrays elements (Tom)
-Wake up lock waiters during cancel (Hiroshi)
-Fix rare cursor crash when using hash join (Tom)
-Fix for DROP TABLE/INDEX in rolled-back transaction (Hiroshi)
-Fix psql crash from \l+ if MULTIBYTE enabled (Peter E)
-Fix truncation of rule names during CREATE VIEW (Ross Reedstrom)
-Fix PL/perl (Alex Kapranoff)
-Disallow LOCK on views (Mark Hollomon)
-Disallow INSERT/UPDATE/DELETE on views (Mark Hollomon)
-Disallow DROP RULE, CREATE INDEX, TRUNCATE on views (Mark Hollomon)
-Allow PL/pgSQL accept non-ASCII identifiers (Tatsuo)
-Allow views to proper handle GROUP BY, aggregates, DISTINCT (Tom)
-Fix rare failure with TRUNCATE command (Tom)
-Allow UNION/INTERSECT/EXCEPT to be used with ALL, subqueries, views,
- DISTINCT, ORDER BY, SELECT...INTO (Tom)
-Fix parser failures during aborted transactions (Tom)
-Allow temporary relations to properly clean up indexes (Bruce)
-Fix VACUUM problem with moving rows in same page (Tom)
-Modify pg_dump to better handle user-defined items in template1 (Philip)
-Allow LIMIT in VIEW (Tom)
-Require cursor FETCH to honor LIMIT (Tom)
-Allow PRIMARY/FOREIGN Key definitions on inherited columns (Stephan)
-Allow ORDER BY, LIMIT in sub-selects (Tom)
-Allow UNION in CREATE RULE (Tom)
-Make ALTER/DROP TABLE rollback-able (Vadim, Tom)
-Store initdb collation in pg_control so collation cannot be changed (Tom)
-Fix INSERT...SELECT with rules (Tom)
-Fix FOR UPDATE inside views and subselects (Tom)
-Fix OVERLAPS operators conform to SQL92 spec regarding NULLs (Tom)
-Fix lpad() and rpad() to handle length less than input string (Tom)
-Fix use of NOTIFY in some rules (Tom)
-Overhaul btree code (Tom)
-Fix NOT NULL use in Pl/pgSQL variables (Tom)
-Overhaul GIST code (Oleg)
-Fix CLUSTER to preserve constraints and column default (Tom)
-Improved deadlock detection handling (Tom)
-Allow multiple SERIAL columns in a table (Tom)
-Prevent occasional index corruption (Vadim)
-
-Enhancements
-------------
-Add OUTER JOINs (Tom)
-Function manager overhaul (Tom)
-Allow ALTER TABLE RENAME on indexes (Tom)
-Improve CLUSTER (Tom)
-Improve ps status display for more platforms (Peter E, Marc)
-Improve CREATE FUNCTION failure message (Ross)
-JDBC improvements (Peter, Travis Bauer, Christopher Cain, William Webber,
- Gunnar)
-Grand Unified Configuration scheme/GUC. Many options can now be set in
- data/postgresql.conf, postmaster/postgres flags, or SET commands (Peter E)
-Improved handling of file descriptor cache (Tom)
-New warning code about auto-created table alias entries (Bruce)
-Overhaul initdb process (Tom, Peter E)
-Overhaul of inherited tables; inherited tables now accessed by default;
- new ONLY keyword prevents it (Chris Bitmead, Tom)
-ODBC cleanups/improvements (Nick Gorham, Stephan Szabo, Zoltan Kovacs,
- Michael Fork)
-Allow renaming of temp tables (Tom)
-Overhaul memory manager contexts (Tom)
-pg_dumpall uses CREATE USER or CREATE GROUP rather using COPY (Peter E)
-Overhaul pg_dump (Philip Warner)
-Allow pg_hba.conf secondary password file to specify only username (Peter E)
-Allow TEMPORARY or TEMP keyword when creating temporary tables (Bruce)
-New memory leak checker (Karel)
-New SET SESSION CHARACTERISTICS (Thomas)
-Allow nested block comments (Thomas)
-Add WITHOUT TIME ZONE type qualifier (Thomas)
-New ALTER TABLE ADD CONSTRAINT (Stephan)
-Use NUMERIC accumulators for INTEGER aggregates (Tom)
-Overhaul aggregate code (Tom)
-New VARIANCE and STDDEV() aggregates
-Improve dependency ordering of pg_dump (Philip)
-New pg_restore command (Philip)
-New pg_dump tar output option (Philip)
-New pg_dump of large objects (Philip)
-New ESCAPE option to LIKE (Thomas)
-New case-insensitive LIKE - ILIKE (Thomas)
-Allow functional indexes to use binary-compatible type (Tom)
-Allow SQL functions to be used in more contexts (Tom)
-New pg_config utility (Peter E)
-New PL/pgSQL EXECUTE command which allows dynamic SQL and utility statements
- (Jan)
-New PL/pgSQL GET DIAGNOSTICS statement for SPI value access (Jan)
-New quote_identifiers() and quote_literal() functions (Jan)
-New ALTER TABLE table OWNER TO user command (Mark Hollomon)
-Allow subselects in FROM, i.e. FROM (SELECT ...) [AS] alias (Tom)
-Update PyGreSQL to version 3.1 (D'Arcy)
-Store tables as files named by OID (Vadim)
-New SQL function setval(seq,val,bool) for use in pg_dump (Philip)
-Require DROP VIEW to remove views, no DROP TABLE (Mark)
-Allow DROP VIEW view1, view2 (Mark)
-Allow multiple objects in DROP INDEX, DROP RULE, and DROP TYPE (Tom)
-Allow automatic conversion to/from Unicode (Tatsuo, Eiji)
-New /contrib/pgcrypto hashing functions (Marko Kreen)
-New pg_dumpall --globals-only option (Peter E)
-New CHECKPOINT command for WAL which creates new WAL log file (Vadim)
-New AT TIME ZONE syntax (Thomas)
-Allow location of Unix domain socket to be configurable (David J. MacKenzie)
-Allow postmaster to listen on a specific IP address (David J. MacKenzie)
-Allow socket path name to be specified in hostname by using leading slash
- (David J. MacKenzie)
-Allow CREATE DATABASE to specify template database (Tom)
-New utility to convert MySQL schema dumps to SQL92 and PostgreSQL (Thomas)
-New /contrib/rserv replication toolkit (Vadim)
-New file format for COPY BINARY (Tom)
-New /contrib/oid2name to map numeric files to table names (B Palmer)
-New "idle in transaction" ps status message (Marc)
-Update to pgaccess 0.98.7 (Constantin Teodorescu)
-pg_ctl now defaults to -w (wait) on shutdown, new -l (log) option
-Add rudimentary dependency checking to pg_dump (Philip)
-
-Types
------
-Fix INET/CIDR type ordering and add new functions (Tom)
-Make OID behave as an unsigned type (Tom)
-Allow BIGINT as synonym for INT8 (Peter E)
-New int2 and int8 comparison operators (Tom)
-New BIT and BIT VARYING types (Adriaan Joubert, Tom, Peter E)
-CHAR() no longer faster than VARCHAR() because of TOAST (Tom)
-New GIST seg/cube examples (Gene Selkov)
-Improved round(numeric) handling (Tom)
-Fix CIDR output formatting (Tom)
-New CIDR abbrev() function (Tom)
-
-Performance
------------
-Write-Ahead Log (WAL) to provide crash recovery with less performance
- overhead (Vadim)
-ANALYZE stage of VACUUM no longer exclusively locks table (Bruce)
-Reduced file seeks (Denis Perchine)
-Improve BTREE code for duplicate keys (Tom)
-Store all large objects in a single table (Denis Perchine, Tom)
-Improve memory allocation performance (Karel, Tom)
-
-Source Code
------------
-New function manager call conventions (Tom)
-SGI portability fixes (David Kaelbling)
-New configure --enable-syslog option (Peter E)
-New BSDI README (Bruce)
-configure script moved to top level, not /src (Peter E)
-Makefile/configuration/compilation overhaul (Peter E)
-New configure --with-python option (Peter E)
-Solaris cleanups (Peter E)
-Overhaul /contrib Makefiles (Karel)
-New OpenSSL configuration option (Magnus, Peter E)
-AIX fixes (Andreas)
-QNX fixes (Maurizio)
-New heap_open(), heap_openr() API (Tom)
-Remove colon and semi-colon operators (Thomas)
-New pg_class.relkind value for views (Mark Hollomon)
-Rename ichar() to chr() (Karel)
-New documentation for btrim(), ascii(), chr(), repeat() (Karel)
-Fixes for NT/Cygwin (Pete Forman)
-AIX port fixes (Andreas)
-New BeOS port (David Reid, Cyril Velter)
-Add proofreader's changes to docs (Addison-Wesley, Bruce)
-New Alpha spinlock code (Adriaan Joubert, Compaq)
-UnixWare port overhaul (Peter E)
-New Darwin/MacOS X port (Peter Bierman, Bruce Hartzler)
-New FreeBSD Alpha port (Alfred)
-Overhaul shared memory segments (Tom)
-Add IBM S/390 support (Neale Ferguson)
-Moved macmanuf to /contrib (Larry Rosenman)
-Syslog improvements (Larry Rosenman)
-New template0 database that contains no user additions (Tom)
-New /contrib/cube and /contrib/seg GIST sample code (Gene Selkov)
-Allow NetBSD's libedit instead of readline (Peter)
-Improved assembly language source code format (Bruce)
-New contrib/pg_logger
-New --template option to createdb
-New contrib/pg_control utility (Oliver)
-New FreeBSD tools ipc_check, start-scripts/freebsd
-
- _________________________________________________________________
-
- Release 7.0.3
-
- Release date: 2000-11-11
-
- This has a variety of fixes from 7.0.2.
- _________________________________________________________________
-
- Migration to version 7.0.3
-
- A dump/restore is *not* required for those running 7.0.*.
- _________________________________________________________________
-
- Changes
-
-Jdbc fixes (Peter)
-Large object fix (Tom)
-Fix lean in COPY WITH OIDS leak (Tom)
-Fix backwards-index-scan (Tom)
-Fix SELECT ... FOR UPDATE so it checks for duplicate keys (Hiroshi)
-Add --enable-syslog to configure (Marc)
-Fix abort transaction at backend exit in rare cases (Tom)
-Fix for psql \l+ when multibyte enabled (Tatsuo)
-Allow PL/pgSQL to accept non ascii identifiers (Tatsuo)
-Make vacuum always flush buffers (Tom)
-Fix to allow cancel while waiting for a lock (Hiroshi)
-Fix for memory aloocation problem in user authentication code (Tom)
-Remove bogus use of int4out() (Tom)
-Fixes for multiple subqueries in COALESCE or BETWEEN (Tom)
-Fix for failure of triggers on heap open in certain cases (Jeroen van
- Vianen)
-Fix for erroneous selectivity of not-equals (Tom)
-Fix for erroneous use of strcmp() (Tom)
-Fix for bug where storage manager accesses items beyond end of file
- (Tom)
-Fix to include kernel errno message in all smgr elog messages (Tom)
-Fix for '.' not in PATH at build time (SL Baur)
-Fix for out-of-file-descriptors error (Tom)
-Fix to make pg_dump dump 'iscachable' flag for functions (Tom)
-Fix for subselect in targetlist of Append node (Tom)
-Fix for mergejoin plans (Tom)
-Fix TRUNCATE failure on relations with indexes (Tom)
-Avoid database-wide restart on write error (Hiroshi)
-Fix nodeMaterial to honor chgParam by recomputing its output (Tom)
-Fix VACUUM problem with moving chain of update tuples when source and
- destination of a tuple lie on the same page (Tom)
-Fix user.c CommandCounterIncrement (Tom)
-Fix for AM/PM boundary problem in to_char() (Karel Zak)
-Fix TIME aggregate handling (Tom)
-Fix to_char() to avoid coredump on NULL input (Tom)
-Buffer fix (Tom)
-Fix for inserting/copying longer multibyte strings into char() data
- types (Tatsuo)
-Fix for crash of backend, on abort (Tom)
-
- _________________________________________________________________
-
- Release 7.0.2
-
- Release date: 2000-06-05
-
- This is a repackaging of 7.0.1 with added documentation.
- _________________________________________________________________
-
- Migration to version 7.0.2
-
- A dump/restore is *not* required for those running 7.*.
- _________________________________________________________________
-
- Changes
-
-Added documentation to tarball.
-
- _________________________________________________________________
-
- Release 7.0.1
-
- Release date: 2000-06-01
-
- This is a cleanup release for 7.0.
- _________________________________________________________________
-
- Migration to version 7.0.1
-
- A dump/restore is *not* required for those running 7.0.
- _________________________________________________________________
-
- Changes
-
-Fix many CLUSTER failures (Tom)
-Allow ALTER TABLE RENAME works on indexes (Tom)
-Fix plpgsql to handle datetime->timestamp and timespan->interval (Bruce)
-New configure --with-setproctitle switch to use setproctitle() (Marc, Bruce)
-Fix the off by one errors in ResultSet from 6.5.3, and more.
-jdbc ResultSet fixes (Joseph Shraibman)
-optimizer tunings (Tom)
-Fix create user for pgaccess
-Fix for UNLISTEN failure
-IRIX fixes (David Kaelbling)
-QNX fixes (Andreas Kardos)
-Reduce COPY IN lock level (Tom)
-Change libpqeasy to use PQconnectdb() style parameters (Bruce)
-Fix pg_dump to handle OID indexes (Tom)
-Fix small memory leak (Tom)
-Solaris fix for createdb/dropdb (Tatsuo)
-Fix for non-blocking connections (Alfred Perlstein)
-Fix improper recovery after RENAME TABLE failures (Tom)
-Copy pg_ident.conf.sample into /lib directory in install (Bruce)
-Add SJIS UDC (NEC selection IBM kanji) support (Eiji Tokuya)
-Fix too long syslog message (Tatsuo)
-Fix problem with quoted indexes that are too long (Tom)
-JDBC ResultSet.getTimestamp() fix (Gregory Krasnow & Floyd Marinescu)
-ecpg changes (Michael)
-
- _________________________________________________________________
-
- Release 7.0
-
- Release date: 2000-05-08
-
- This release contains improvements in many areas, demonstrating the
- continued growth of PostgreSQL. There are more improvements and fixes
- in 7.0 than in any previous release. The developers have confidence
- that this is the best release yet; we do our best to put out only
- solid releases, and this one is no exception.
-
- Major changes in this release:
-
- Foreign Keys
- Foreign keys are now implemented, with the exception of PARTIAL
- MATCH foreign keys. Many users have been asking for this
- feature, and we are pleased to offer it.
-
- Optimizer Overhaul
- Continuing on work started a year ago, the optimizer has been
- improved, allowing better query plan selection and faster
- performance with less memory usage.
-
- Updated psql
- psql, our interactive terminal monitor, has been updated with a
- variety of new features. See the psql manual page for details.
-
- Join Syntax
- SQL92 join syntax is now supported, though only as INNER JOIN
- for this release. JOIN, NATURAL JOIN, JOIN/USING, and JOIN/ON
- are available, as are column correlation names.
- _________________________________________________________________
-
- Migration to version 7.0
-
- A dump/restore using pg_dump is required for those wishing to migrate
- data from any previous release of PostgreSQL. For those upgrading from
- 6.5.*, you may instead use pg_upgrade to upgrade to this release;
- however, a full dump/reload installation is always the most robust
- method for upgrades.
-
- Interface and compatibility issues to consider for the new release
- include:
-
- * The date/time types datetime and timespan have been superseded by
- the SQL92-defined types timestamp and interval. Although there has
- been some effort to ease the transition by allowing PostgreSQL to
- recognize the deprecated type names and translate them to the new
- type names, this mechanism may not be completely transparent to
- your existing application.
- * The optimizer has been substantially improved in the area of query
- cost estimation. In some cases, this will result in decreased
- query times as the optimizer makes a better choice for the
- preferred plan. However, in a small number of cases, usually
- involving pathological distributions of data, your query times may
- go up. If you are dealing with large amounts of data, you may want
- to check your queries to verify performance.
- * The JDBC and ODBC interfaces have been upgraded and extended.
- * The string function CHAR_LENGTH is now a native function. Previous
- versions translated this into a call to LENGTH, which could result
- in ambiguity with other types implementing LENGTH such as the
- geometric types.
- _________________________________________________________________
-
- Changes
-
-Bug Fixes
----------
-Prevent function calls exceeding maximum number of arguments (Tom)
-Improve CASE construct (Tom)
-Fix SELECT coalesce(f1,0) FROM int4_tbl GROUP BY f1 (Tom)
-Fix SELECT sentence.words[0] FROM sentence GROUP BY sentence.words[0] (Tom)
-Fix GROUP BY scan bug (Tom)
-Improvements in SQL grammar processing (Tom)
-Fix for views involved in INSERT ... SELECT ... (Tom)
-Fix for SELECT a/2, a/2 FROM test_missing_target GROUP BY a/2 (Tom)
-Fix for subselects in INSERT ... SELECT (Tom)
-Prevent INSERT ... SELECT ... ORDER BY (Tom)
-Fixes for relations greater than 2GB, including vacuum
-Improve propagating system table changes to other backends (Tom)
-Improve propagating user table changes to other backends (Tom)
-Fix handling of temp tables in complex situations (Bruce, Tom)
-Allow table locking at table open, improving concurrent reliability (Tom)
-Properly quote sequence names in pg_dump (Ross J. Reedstrom)
-Prevent DROP DATABASE while others accessing
-Prevent any rows from being returned by GROUP BY if no rows processed (Tom)
-Fix SELECT COUNT(1) FROM table WHERE ...' if no rows matching WHERE (Tom)
-Fix pg_upgrade so it works for MVCC (Tom)
-Fix for SELECT ... WHERE x IN (SELECT ... HAVING SUM(x) > 1) (Tom)
-Fix for "f1 datetime DEFAULT 'now'" (Tom)
-Fix problems with CURRENT_DATE used in DEFAULT (Tom)
-Allow comment-only lines, and ;;; lines too. (Tom)
-Improve recovery after failed disk writes, disk full (Hiroshi)
-Fix cases where table is mentioned in FROM but not joined (Tom)
-Allow HAVING clause without aggregate functions (Tom)
-Fix for "--" comment and no trailing newline, as seen in perl interface
-Improve pg_dump failure error reports (Bruce)
-Allow sorts and hashes to exceed 2GB file sizes (Tom)
-Fix for pg_dump dumping of inherited rules (Tom)
-Fix for NULL handling comparisons (Tom)
-Fix inconsistent state caused by failed CREATE/DROP commands (Hiroshi)
-Fix for dbname with dash
-Prevent DROP INDEX from interfering with other backends (Tom)
-Fix file descriptor leak in verify_password()
-Fix for "Unable to identify an operator =$" problem
-Fix ODBC so no segfault if CommLog and Debug enabled (Dirk Niggemann)
-Fix for recursive exit call (Massimo)
-Fix for extra-long timezones (Jeroen van Vianen)
-Make pg_dump preserve primary key information (Peter E)
-Prevent databases with single quotes (Peter E)
-Prevent DROP DATABASE inside transaction (Peter E)
-ecpg memory leak fixes (Stephen Birch)
-Fix for SELECT null::text, SELECT int4fac(null) and SELECT 2 + (null) (Tom)
-Y2K timestamp fix (Massimo)
-Fix for VACUUM 'HEAP_MOVED_IN was not expected' errors (Tom)
-Fix for views with tables/columns containing spaces (Tom)
-Prevent permissions on indexes (Peter E)
-Fix for spinlock stuck problem when error is generated (Hiroshi)
-Fix ipcclean on Linux
-Fix handling of NULL constraint conditions (Tom)
-Fix memory leak in odbc driver (Nick Gorham)
-Fix for permission check on UNION tables (Tom)
-Fix to allow SELECT 'a' LIKE 'a' (Tom)
-Fix for SELECT 1 + NULL (Tom)
-Fixes to CHAR
-Fix log() on numeric type (Tom)
-Deprecate ':' and ';' operators
-Allow vacuum of temporary tables
-Disallow inherited columns with the same name as new columns
-Recover or force failure when disk space is exhausted (Hiroshi)
-Fix INSERT INTO ... SELECT with AS columns matching result columns
-Fix INSERT ... SELECT ... GROUP BY groups by target columns not source columns
-(Tom)
-Fix CREATE TABLE test (a char(5) DEFAULT text '', b int4) with INSERT (Tom)
-Fix UNION with LIMIT
-Fix CREATE TABLE x AS SELECT 1 UNION SELECT 2
-Fix CREATE TABLE test(col char(2) DEFAULT user)
-Fix mismatched types in CREATE TABLE ... DEFAULT
-Fix SELECT * FROM pg_class where oid in (0,-1)
-Fix SELECT COUNT('asdf') FROM pg_class WHERE oid=12
-Prevent user who can create databases can modifying pg_database table (Peter E)
-Fix btree to give a useful elog when key > 1/2 (page - overhead) (Tom)
-Fix INSERT of 0.0 into DECIMAL(4,4) field (Tom)
-
-Enhancements
-------------
-New CLI interface include file sqlcli.h, based on SQL3/SQL98
-Remove all limits on query length, row length limit still exists (Tom)
-Update jdbc protocol to 2.0 (Jens Glaser <jens@jens.de>)
-Add TRUNCATE command to quickly truncate relation (Mike Mascari)
-Fix to give super user and createdb user proper update catalog rights (Peter E)
-Allow ecpg bool variables to have NULL values (Christof)
-Issue ecpg error if NULL value for variable with no NULL indicator (Christof)
-Allow ^C to cancel COPY command (Massimo)
-Add SET FSYNC and SHOW PG_OPTIONS commands(Massimo)
-Function name overloading for dynamically-loaded C functions (Frankpitt)
-Add CmdTuples() to libpq++(Vince)
-New CREATE CONSTRAINT TRIGGER and SET CONSTRAINTS commands(Jan)
-Allow CREATE FUNCTION/WITH clause to be used for all language types
-configure --enable-debug adds -g (Peter E)
-configure --disable-debug removes -g (Peter E)
-Allow more complex default expressions (Tom)
-First real FOREIGN KEY constraint trigger functionality (Jan)
-Add FOREIGN KEY ... MATCH FULL ... ON DELETE CASCADE (Jan)
-Add FOREIGN KEY ... MATCH <unspecified> referential actions (Don Baccus)
-Allow WHERE restriction on ctid (physical heap location) (Hiroshi)
-Move pginterface from contrib to interface directory, rename to pgeasy (Bruce)
-Change pgeasy connectdb() parameter ordering (Bruce)
-Require SELECT DISTINCT target list to have all ORDER BY columns (Tom)
-Add Oracle's COMMENT ON command (Mike Mascari <mascarim@yahoo.com>)
-libpq's PQsetNoticeProcessor function now returns previous hook(Peter E)
-Prevent PQsetNoticeProcessor from being set to NULL (Peter E)
-Make USING in COPY optional (Bruce)
-Allow subselects in the target list (Tom)
-Allow subselects on the left side of comparison operators (Tom)
-New parallel regression test (Jan)
-Change backend-side COPY to write files with permissions 644 not 666 (Tom)
-Force permissions on PGDATA directory to be secure, even if it exists (Tom)
-Added psql LASTOID variable to return last inserted oid (Peter E)
-Allow concurrent vacuum and remove pg_vlock vacuum lock file (Tom)
-Add permissions check for vacuum (Peter E)
-New libpq functions to allow asynchronous connections: PQconnectStart(),
- PQconnectPoll(), PQresetStart(), PQresetPoll(), PQsetenvStart(),
- PQsetenvPoll(), PQsetenvAbort (Ewan Mellor)
-New libpq PQsetenv() function (Ewan Mellor)
-create/alter user extension (Peter E)
-New postmaster.pid and postmaster.opts under $PGDATA (Tatsuo)
-New scripts for create/drop user/db (Peter E)
-Major psql overhaul (Peter E)
-Add const to libpq interface (Peter E)
-New libpq function PQoidValue (Peter E)
-Show specific non-aggregate causing problem with GROUP BY (Tom)
-Make changes to pg_shadow recreate pg_pwd file (Peter E)
-Add aggregate(DISTINCT ...) (Tom)
-Allow flag to control COPY input/output of NULLs (Peter E)
-Make postgres user have a password by default (Peter E)
-Add CREATE/ALTER/DROP GROUP (Peter E)
-All administration scripts now support --long options (Peter E, Karel)
-Vacuumdb script now supports --all option (Peter E)
-ecpg new portable FETCH syntax
-Add ecpg EXEC SQL IFDEF, EXEC SQL IFNDEF, EXEC SQL ELSE, EXEC SQL ELIF
- and EXEC SQL ENDIF directives
-Add pg_ctl script to control backend start-up (Tatsuo)
-Add postmaster.opts.default file to store start-up flags (Tatsuo)
-Allow --with-mb=SQL_ASCII
-Increase maximum number of index keys to 16 (Bruce)
-Increase maximum number of function arguments to 16 (Bruce)
-Allow configuration of maximum number of index keys and arguments (Bruce)
-Allow unprivileged users to change their passwords (Peter E)
-Password authentication enabled; required for new users (Peter E)
-Disallow dropping a user who owns a database (Peter E)
-Change initdb option --with-mb to --enable-multibyte
-Add option for initdb to prompts for superuser password (Peter E)
-Allow complex type casts like col::numeric(9,2) and col::int2::float8 (Tom)
-Updated user interfaces on initdb, initlocation, pg_dump, ipcclean (Peter E)
-New pg_char_to_encoding() and pg_encoding_to_char() functions (Tatsuo)
-Libpq non-blocking mode (Alfred Perlstein)
-Improve conversion of types in casts that don't specify a length
-New plperl internal programming language (Mark Hollomon)
-Allow COPY IN to read file that do not end with a newline (Tom)
-Indicate when long identifiers are truncated (Tom)
-Allow aggregates to use type equivalency (Peter E)
-Add Oracle's to_char(), to_date(), to_datetime(), to_timestamp(), to_number()
- conversion functions (Karel Zak <zakkr@zf.jcu.cz>)
-Add SELECT DISTINCT ON (expr [, expr ...]) targetlist ... (Tom)
-Check to be sure ORDER BY is compatible with the DISTINCT operation (Tom)
-Add NUMERIC and int8 types to ODBC
-Improve EXPLAIN results for Append, Group, Agg, Unique (Tom)
-Add ALTER TABLE ... ADD FOREIGN KEY (Stephan Szabo)
-Allow SELECT .. FOR UPDATE in PL/pgSQL (Hiroshi)
-Enable backward sequential scan even after reaching EOF (Hiroshi)
-Add btree indexing of boolean values, >= and <= (Don Baccus)
-Print current line number when COPY FROM fails (Massimo)
-Recognize POSIX time zone e.g. "PST+8" and "GMT-8" (Thomas)
-Add DEC as synonym for DECIMAL (Thomas)
-Add SESSION_USER as SQL92 keyword, same as CURRENT_USER (Thomas)
-Implement SQL92 column aliases (aka correlation names) (Thomas)
-Implement SQL92 join syntax (Thomas)
-Make INTERVAL reserved word allowed as a column identifier (Thomas)
-Implement REINDEX command (Hiroshi)
-Accept ALL in aggregate function SUM(ALL col) (Tom)
-Prevent GROUP BY from using column aliases (Tom)
-New psql \encoding option (Tatsuo)
-Allow PQrequestCancel() to terminate when in waiting-for-lock state (Hiroshi)
-Allow negation of a negative number in all cases
-Add ecpg descriptors (Christof, Michael)
-Allow CREATE VIEW v AS SELECT f1::char(8) FROM tbl
-Allow casts with length, like foo::char(8)
-New libpq functions PQsetClientEncoding(), PQclientEncoding() (Tatsuo)
-Add support for SJIS user defined characters (Tatsuo)
-Larger views/rules supported
-Make libpq's PQconndefaults() thread-safe (Tom)
-Disable // as comment to be ANSI conforming, should use -- (Tom)
-Allow column aliases on views CREATE VIEW name (collist)
-Fixes for views with subqueries (Tom)
-Allow UPDATE table SET fld = (SELECT ...) (Tom)
-SET command options no longer require quotes
-Update pgaccess to 0.98.6
-New SET SEED command
-New pg_options.sample file
-New SET FSYNC command (Massimo)
-Allow pg_descriptions when creating tables
-Allow pg_descriptions when creating types, columns, and functions
-Allow psql \copy to allow delimiters (Peter E)
-Allow psql to print nulls as distinct from "" [null] (Peter E)
-
-Types
------
-Many array fixes (Tom)
-Allow bare column names to be subscripted as arrays (Tom)
-Improve type casting of int and float constants (Tom)
-Cleanups for int8 inputs, range checking, and type conversion (Tom)
-Fix for SELECT timespan('21:11:26'::time) (Tom)
-netmask('x.x.x.x/0') is 255.255.255.255 instead of 0.0.0.0 (Oleg Sharoiko)
-Add btree index on NUMERIC (Jan)
-Perl fix for large objects containing NUL characters (Douglas Thomson)
-ODBC fix for for large objects (free)
-Fix indexing of cidr data type
-Fix for Ethernet MAC addresses (macaddr type) comparisons
-Fix for date/time types when overflows happened in computations (Tom)
-Allow array on int8 (Peter E)
-Fix for rounding/overflow of NUMERIC type, like NUMERIC(4,4) (Tom)
-Allow NUMERIC arrays
-Fix bugs in NUMERIC ceil() and floor() functions (Tom)
-Make char_length()/octet_length including trailing blanks (Tom)
-Made abstime/reltime use int4 instead of time_t (Peter E)
-New lztext data type for compressed text fields
-Revise code to handle coercion of int and float constants (Tom)
-Start at new code to implement a BIT and BIT VARYING type (Adriaan Joubert)
-NUMERIC now accepts scientific notation (Tom)
-NUMERIC to int4 rounds (Tom)
-Convert float4/8 to NUMERIC properly (Tom)
-Allow type conversion with NUMERIC (Thomas)
-Make ISO date style (2000-02-16 09:33) the default (Thomas)
-Add NATIONAL CHAR [ VARYING ] (Thomas)
-Allow NUMERIC round and trunc to accept negative scales (Tom)
-New TIME WITH TIME ZONE type (Thomas)
-Add MAX()/MIN() on time type (Thomas)
-Add abs(), mod(), fac() for int8 (Thomas)
-Rename functions to round(), sqrt(), cbrt(), pow() for float8 (Thomas)
-Add transcendental math functions (e.g. sin(), acos()) for float8 (Thomas)
-Add exp() and ln() for NUMERIC type
-Rename NUMERIC power() to pow() (Thomas)
-Improved TRANSLATE() function (Edwin Ramirez, Tom)
-Allow X=-Y operators (Tom)
-Allow SELECT float8(COUNT(*))/(SELECT COUNT(*) FROM t) FROM t GROUP BY f1; (Tom
-)
-Allow LOCALE to use indexes in regular expression searches (Tom)
-Allow creation of functional indexes to use default types
-
-Performance
------------
-Prevent exponential space consumption with many AND's and OR's (Tom)
-Collect attribute selectivity values for system columns (Tom)
-Reduce memory usage of aggregates (Tom)
-Fix for LIKE optimization to use indexes with multibyte encodings (Tom)
-Fix r-tree index optimizer selectivity (Thomas)
-Improve optimizer selectivity computations and functions (Tom)
-Optimize btree searching for cases where many equal keys exist (Tom)
-Enable fast LIKE index processing only if index present (Tom)
-Re-use free space on index pages with duplicates (Tom)
-Improve hash join processing (Tom)
-Prevent descending sort if result is already sorted(Hiroshi)
-Allow commuting of index scan query qualifications (Tom)
-Prefer index scans in cases where ORDER BY/GROUP BY is required (Tom)
-Allocate large memory requests in fix-sized chunks for performance (Tom)
-Fix vacuum's performance by reducing memory allocation requests (Tom)
-Implement constant-expression simplification (Bernard Frankpitt, Tom)
-Use secondary columns to be used to determine start of index scan (Hiroshi)
-Prevent quadruple use of disk space when doing internal sorting (Tom)
-Faster sorting by calling fewer functions (Tom)
-Create system indexes to match all system caches (Bruce, Hiroshi)
-Make system caches use system indexes (Bruce)
-Make all system indexes unique (Bruce)
-Improve pg_statistics management for VACUUM speed improvement (Tom)
-Flush backend cache less frequently (Tom, Hiroshi)
-COPY now reuses previous memory allocation, improving performance (Tom)
-Improve optimization cost estimation (Tom)
-Improve optimizer estimate of range queries x > lowbound AND x < highbound (Tom
-)
-Use DNF instead of CNF where appropriate (Tom, Taral)
-Further cleanup for OR-of-AND WHERE-clauses (Tom)
-Make use of index in OR clauses (x = 1 AND y = 2) OR (x = 2 AND y = 4) (Tom)
-Smarter optimizer computations for random index page access (Tom)
-New SET variable to control optimizer costs (Tom)
-Optimizer queries based on LIMIT, OFFSET, and EXISTS qualifications (Tom)
-Reduce optimizer internal housekeeping of join paths for speedup (Tom)
-Major subquery speedup (Tom)
-Fewer fsync writes when fsync is not disabled (Tom)
-Improved LIKE optimizer estimates (Tom)
-Prevent fsync in SELECT-only queries (Vadim)
-Make index creation use psort code, because it is now faster (Tom)
-Allow creation of sort temp tables > 1 Gig
-
-Source Tree Changes
--------------------
-Fix for linux PPC compile
-New generic expression-tree-walker subroutine (Tom)
-Change form() to varargform() to prevent portability problems
-Improved range checking for large integers on Alphas
-Clean up #include in /include directory (Bruce)
-Add scripts for checking includes (Bruce)
-Remove un-needed #include's from *.c files (Bruce)
-Change #include's to use <> and "" as appropriate (Bruce)
-Enable WIN32 compilation of libpq
-Alpha spinlock fix from Uncle George <gatgul@voicenet.com>
-Overhaul of optimizer data structures (Tom)
-Fix to cygipc library (Yutaka Tanida)
-Allow pgsql to work on newer Cygwin snapshots (Dan)
-New catalog version number (Tom)
-Add Linux ARM
-Rename heap_replace to heap_update
-Update for QNX (Dr. Andreas Kardos)
-New platform-specific regression handling (Tom)
-Rename oid8 -> oidvector and int28 -> int2vector (Bruce)
-Included all yacc and lex files into the distribution (Peter E.)
-Remove lextest, no longer needed (Peter E)
-Fix for libpq and psql on Win32 (Magnus)
-Internally change datetime and timespan into timestamp and interval (Thomas)
-Fix for plpgsql on BSD/OS
-Add SQL_ASCII test case to the regression test (Tatsuo)
-configure --with-mb now deprecated (Tatsuo)
-NT fixes
-NetBSD fixes (Johnny C. Lam <lamj@stat.cmu.edu>)
-Fixes for Alpha compiles
-New multibyte encodings
-
- _________________________________________________________________
-
- Release 6.5.3
-
- Release date: 1999-10-13
-
- This is basically a cleanup release for 6.5.2. We have added a new
- PgAccess that was missing in 6.5.2, and installed an NT-specific fix.
- _________________________________________________________________
-
- Migration to version 6.5.3
-
- A dump/restore is *not* required for those running 6.5.*.
- _________________________________________________________________
-
- Changes
-
-Updated version of pgaccess 0.98
-NT-specific patch
-Fix dumping rules on inherited tables
-
- _________________________________________________________________
-
- Release 6.5.2
-
- Release date: 1999-09-15
-
- This is basically a cleanup release for 6.5.1. We have fixed a variety
- of problems reported by 6.5.1 users.
- _________________________________________________________________
-
- Migration to version 6.5.2
-
- A dump/restore is *not* required for those running 6.5.*.
- _________________________________________________________________
-
- Changes
-
-subselect+CASE fixes(Tom)
-Add SHLIB_LINK setting for solaris_i386 and solaris_sparc ports(Daren Sefcik)
-Fixes for CASE in WHERE join clauses(Tom)
-Fix BTScan abort(Tom)
-Repair the check for redundant UNIQUE and PRIMARY KEY indexes(Thomas)
-Improve it so that it checks for multicolumn constraints(Thomas)
-Fix for Win32 making problem with MB enabled(Hiroki Kataoka)
-Allow BSD yacc and bison to compile pl code(Bruce)
-Fix SET NAMES working
-int8 fixes(Thomas)
-Fix vacuum's memory consumption(Hiroshi,Tatsuo)
-Reduce the total memory consumption of vacuum(Tom)
-Fix for timestamp(datetime)
-Rule deparsing bugfixes(Tom)
-Fix quoting problems in mkMakefile.tcldefs.sh.in and mkMakefile.tkdefs.sh.in(To
-m)
-This is to re-use space on index pages freed by vacuum(Vadim)
-document -x for pg_dump(Bruce)
-Fix for unary operators in rule deparser(Tom)
-Comment out FileUnlink of excess segments during mdtruncate()(Tom)
-IRIX linking fix from Yu Cao >yucao@falcon.kla-tencor.com<
-Repair logic error in LIKE: should not return LIKE_ABORT
- when reach end of pattern before end of text(Tom)
-Repair incorrect cleanup of heap memory allocation during transaction abort(Tom
-)
-Updated version of pgaccess 0.98
-
- _________________________________________________________________
-
- Release 6.5.1
-
- Release date: 1999-07-15
-
- This is basically a cleanup release for 6.5. We have fixed a variety
- of problems reported by 6.5 users.
- _________________________________________________________________
-
- Migration to version 6.5.1
-
- A dump/restore is *not* required for those running 6.5.
- _________________________________________________________________
-
- Changes
-
-Add NT README file
-Portability fixes for linux_ppc, IRIX, linux_alpha, OpenBSD, alpha
-Remove QUERY_LIMIT, use SELECT...LIMIT
-Fix for EXPLAIN on inheritance(Tom)
-Patch to allow vacuum on multisegment tables(Hiroshi)
-R-Tree optimizer selectivity fix(Tom)
-ACL file descriptor leak fix(Atsushi Ogawa)
-New expresssion subtree code(Tom)
-Avoid disk writes for read-only transactions(Vadim)
-Fix for removal of temp tables if last transaction was aborted(Bruce)
-Fix to prevent too large tuple from being created(Bruce)
-plpgsql fixes
-Allow port numbers 32k - 64k(Bruce)
-Add ^ precidence(Bruce)
-Rename sort files called pg_temp to pg_sorttemp(Bruce)
-Fix for microseconds in time values(Tom)
-Tutorial source cleanup
-New linux_m68k port
-Fix for sorting of NULL's in some cases(Tom)
-Shared library dependencies fixed (Tom)
-Fixed glitches affecting GROUP BY in subselects(Tom)
-Fix some compiler warnings (Tomoaki Nishiyama)
-Add Win1250 (Czech) support (Pavel Behal)
-
- _________________________________________________________________
-
- Release 6.5
-
- Release date: 1999-06-09
-
- This release marks a major step in the development team's mastery of
- the source code we inherited from Berkeley. You will see we are now
- easily adding major features, thanks to the increasing size and
- experience of our world-wide development team.
-
- Here is a brief summary of the more notable changes:
-
- Multiversion concurrency control(MVCC)
- This removes our old table-level locking, and replaces it with
- a locking system that is superior to most commercial database
- systems. In a traditional system, each row that is modified is
- locked until committed, preventing reads by other users. MVCC
- uses the natural multiversion nature of PostgreSQL to allow
- readers to continue reading consistent data during writer
- activity. Writers continue to use the compact pg_log
- transaction system. This is all performed without having to
- allocate a lock for every row like traditional database
- systems. So, basically, we no longer are restricted by simple
- table-level locking; we have something better than row-level
- locking.
-
- Hot backups from pg_dump
- pg_dump takes advantage of the new MVCC features to give a
- consistent database dump/backup while the database stays online
- and available for queries.
-
- Numeric data type
- We now have a true numeric data type, with user-specified
- precision.
-
- Temporary tables
- Temporary tables are guaranteed to have unique names within a
- database session, and are destroyed on session exit.
-
- New SQL features
- We now have CASE, INTERSECT, and EXCEPT statement support. We
- have new LIMIT/OFFSET, SET TRANSACTION ISOLATION LEVEL, SELECT
- ... FOR UPDATE, and an improved LOCK TABLE command.
-
- Speedups
- We continue to speed up PostgreSQL, thanks to the variety of
- talents within our team. We have sped up memory allocation,
- optimization, table joins, and row transfer routines.
-
- Ports
- We continue to expand our port list, this time including
- Windows NT/ix86 and NetBSD/arm32.
-
- Interfaces
- Most interfaces have new versions, and existing functionality
- has been improved.
-
- Documentation
- New and updated material is present throughout the
- documentation. New FAQs have been contributed for SGI and AIX
- platforms. The Tutorial has introductory information on SQL
- from Stefan Simkovics. For the User's Guide, there are
- reference pages covering the postmaster and more utility
- programs, and a new appendix contains details on date/time
- behavior. The Administrator's Guide has a new chapter on
- troubleshooting from Tom Lane. And the Programmer's Guide has a
- description of query processing, also from Stefan, and details
- on obtaining the PostgreSQL source tree via anonymous CVS and
- CVSup.
- _________________________________________________________________
-
- Migration to version 6.5
-
- A dump/restore using pg_dump is required for those wishing to migrate
- data from any previous release of PostgreSQL. pg_upgrade can *not* be
- used to upgrade to this release because the on-disk structure of the
- tables has changed compared to previous releases.
-
- The new Multiversion Concurrency Control (MVCC) features can give
- somewhat different behaviors in multiuser environments. *Read and
- understand the following section to ensure that your existing
- applications will give you the behavior you need.*
- _________________________________________________________________
-
-Multiversion Concurrency Control
-
- Because readers in 6.5 don't lock data, regardless of transaction
- isolation level, data read by one transaction can be overwritten by
- another. In other words, if a row is returned by "SELECT" it doesn't
- mean that this row really exists at the time it is returned (i.e.
- sometime after the statement or transaction began) nor that the row is
- protected from being deleted or updated by concurrent transactions
- before the current transaction does a commit or rollback.
-
- To ensure the actual existence of a row and protect it against
- concurrent updates one must use "SELECT FOR UPDATE" or an appropriate
- "LOCK TABLE" statement. This should be taken into account when porting
- applications from previous releases of PostgreSQL and other
- environments.
-
- Keep the above in mind if you are using "contrib/refint.*" triggers
- for referential integrity. Additional techniques are required now. One
- way is to use "LOCK parent_table IN SHARE ROW EXCLUSIVE MODE" command
- if a transaction is going to update/delete a primary key and use "LOCK
- parent_table IN SHARE MODE" command if a transaction is going to
- update/insert a foreign key.
-
- Note: Note that if you run a transaction in SERIALIZABLE mode then
- you must execute the "LOCK" commands above before execution of any
- DML statement ("SELECT/INSERT/DELETE/UPDATE/FETCH/COPY_TO") in the
- transaction.
-
- These inconveniences will disappear in the future when the ability to
- read dirty (uncommitted) data (regardless of isolation level) and true
- referential integrity will be implemented.
- _________________________________________________________________
-
- Changes
-
-Bug Fixes
----------
-Fix text<->float8 and text<->float4 conversion functions(Thomas)
-Fix for creating tables with mixed-case constraints(Billy)
-Change exp()/pow() behavior to generate error on underflow/overflow(Jan)
-Fix bug in pg_dump -z
-Memory overrun cleanups(Tatsuo)
-Fix for lo_import crash(Tatsuo)
-Adjust handling of data type names to suppress double quotes(Thomas)
-Use type coercion for matching columns and DEFAULT(Thomas)
-Fix deadlock so it only checks once after one second of sleep(Bruce)
-Fixes for aggregates and PL/pgsql(Hiroshi)
-Fix for subquery crash(Vadim)
-Fix for libpq function PQfnumber and case-insensitive names(Bahman Rafatjoo)
-Fix for large object write-in-middle, no extra block, memory consumption(Tatsuo
-)
-Fix for pg_dump -d or -D and quote special characters in INSERT
-Repair serious problems with dynahash(Tom)
-Fix INET/CIDR portability problems
-Fix problem with selectivity error in ALTER TABLE ADD COLUMN(Bruce)
-Fix executor so mergejoin of different column types works(Tom)
-Fix for Alpha OR selectivity bug
-Fix OR index selectivity problem(Bruce)
-Fix so \d shows proper length for char()/varchar()(Ryan)
-Fix tutorial code(Clark)
-Improve destroyuser checking(Oliver)
-Fix for Kerberos(Rodney McDuff)
-Fix for dropping database while dirty buffers(Bruce)
-Fix so sequence nextval() can be case-sensitive(Bruce)
-Fix !!= operator
-Drop buffers before destroying database files(Bruce)
-Fix case where executor evaluates functions twice(Tatsuo)
-Allow sequence nextval actions to be case-sensitive(Bruce)
-Fix optimizer indexing not working for negative numbers(Bruce)
-Fix for memory leak in executor with fjIsNull
-Fix for aggregate memory leaks(Erik Riedel)
-Allow username containing a dash GRANT permissions
-Cleanup of NULL in inet types
-Clean up system table bugs(Tom)
-Fix problems of PAGER and \? command(Masaaki Sakaida)
-Reduce default multisegment file size limit to 1GB(Peter)
-Fix for dumping of CREATE OPERATOR(Tom)
-Fix for backward scanning of cursors(Hiroshi Inoue)
-Fix for COPY FROM STDIN when using \i(Tom)
-Fix for subselect is compared inside an expression(Jan)
-Fix handling of error reporting while returning rows(Tom)
-Fix problems with reference to array types(Tom,Jan)
-Prevent UPDATE SET oid(Jan)
-Fix pg_dump so -t option can handle case-sensitive tablenames
-Fixes for GROUP BY in special cases(Tom, Jan)
-Fix for memory leak in failed queries(Tom)
-DEFAULT now supports mixed-case identifiers(Tom)
-Fix for multisegment uses of DROP/RENAME table, indexes(Ole Gjerde)
-Disable use of pg_dump with both -o and -d options(Bruce)
-Allow pg_dump to properly dump GROUP permissions(Bruce)
-Fix GROUP BY in INSERT INTO table SELECT * FROM table2(Jan)
-Fix for computations in views(Jan)
-Fix for aggregates on array indexes(Tom)
-Fix for DEFAULT handles single quotes in value requiring too many quotes
-Fix security problem with non-super users importing/exporting large objects(Tom
-)
-Rollback of transaction that creates table cleaned up properly(Tom)
-Fix to allow long table and column names to generate proper serial names(Tom)
-
-Enhancements
-------------
-Add "vacuumdb" utility
-Speed up libpq by allocating memory better(Tom)
-EXPLAIN all indexes used(Tom)
-Implement CASE, COALESCE, NULLIF expression(Thomas)
-New pg_dump table output format(Constantin)
-Add string min()/max() functions(Thomas)
-Extend new type coercion techniques to aggregates(Thomas)
-New moddatetime contrib(Terry)
-Update to pgaccess 0.96(Constantin)
-Add routines for single-byte "char" type(Thomas)
-Improved substr() function(Thomas)
-Improved multibyte handling(Tatsuo)
-Multiversion concurrency control/MVCC(Vadim)
-New Serialized mode(Vadim)
-Fix for tables over 2gigs(Peter)
-New SET TRANSACTION ISOLATION LEVEL(Vadim)
-New LOCK TABLE IN ... MODE(Vadim)
-Update ODBC driver(Byron)
-New NUMERIC data type(Jan)
-New SELECT FOR UPDATE(Vadim)
-Handle "NaN" and "Infinity" for input values(Jan)
-Improved date/year handling(Thomas)
-Improved handling of backend connections(Magnus)
-New options ELOG_TIMESTAMPS and USE_SYSLOG options for log files(Massimo)
-New TCL_ARRAYS option(Massimo)
-New INTERSECT and EXCEPT(Stefan)
-New pg_index.indisprimary for primary key tracking(D'Arcy)
-New pg_dump option to allow dropping of tables before creation(Brook)
-Speedup of row output routines(Tom)
-New READ COMMITTED isolation level(Vadim)
-New TEMP tables/indexes(Bruce)
-Prevent sorting if result is already sorted(Jan)
-New memory allocation optimization(Jan)
-Allow psql to do \p\g(Bruce)
-Allow multiple rule actions(Jan)
-Added LIMIT/OFFSET functionality(Jan)
-Improve optimizer when joining a large number of tables(Bruce)
-New intro to SQL from S. Simkovics' Master's Thesis (Stefan, Thomas)
-New intro to backend processing from S. Simkovics' Master's Thesis (Stefan)
-Improved int8 support(Ryan Bradetich, Thomas, Tom)
-New routines to convert between int8 and text/varchar types(Thomas)
-New bushy plans, where meta-tables are joined(Bruce)
-Enable right-hand queries by default(Bruce)
-Allow reliable maximum number of backends to be set at configure time
- (--with-maxbackends and postmaster switch (-N backends))(Tom)
-GEQO default now 10 tables because of optimizer speedups(Tom)
-Allow NULL=Var for MS-SQL portability(Michael, Bruce)
-Modify contrib check_primary_key() so either "automatic" or "dependent"(Anand)
-Allow psql \d on a view show query(Ryan)
-Speedup for LIKE(Bruce)
-Ecpg fixes/features, see src/interfaces/ecpg/ChangeLog file(Michael)
-JDBC fixes/features, see src/interfaces/jdbc/CHANGELOG(Peter)
-Make % operator have precedence like /(Bruce)
-Add new postgres -O option to allow system table structure changes(Bruce)
-Update contrib/pginterface/findoidjoins script(Tom)
-Major speedup in vacuum of deleted rows with indexes(Vadim)
-Allow non-SQL functions to run different versions based on arguments(Tom)
-Add -E option that shows actual queries sent by \dt and friends(Masaaki Sakaida
-)
-Add version number in start-up banners for psql(Masaaki Sakaida)
-New contrib/vacuumlo removes large objects not referenced(Peter)
-New initialization for table sizes so non-vacuumed tables perform better(Tom)
-Improve error messages when a connection is rejected(Tom)
-Support for arrays of char() and varchar() fields(Massimo)
-Overhaul of hash code to increase reliability and performance(Tom)
-Update to PyGreSQL 2.4(D'Arcy)
-Changed debug options so -d4 and -d5 produce different node displays(Jan)
-New pg_options: pretty_plan, pretty_parse, pretty_rewritten(Jan)
-Better optimization statistics for system table access(Tom)
-Better handling of non-default block sizes(Massimo)
-Improve GEQO optimizer memory consumption(Tom)
-UNION now suppports ORDER BY of columns not in target list(Jan)
-Major libpq++ improvements(Vince Vielhaber)
-pg_dump now uses -z(ACL's) as default(Bruce)
-backend cache, memory speedups(Tom)
-have pg_dump do everything in one snapshot transaction(Vadim)
-fix for large object memory leakage, fix for pg_dumping(Tom)
-INET type now respects netmask for comparisons
-Make VACUUM ANALYZE only use a readlock(Vadim)
-Allow VIEWs on UNIONS(Jan)
-pg_dump now can generate consistent snapshots on active databases(Vadim)
-
-Source Tree Changes
--------------------
-Improve port matching(Tom)
-Portability fixes for SunOS
-Add NT/Win32 backend port and enable dynamic loading(Magnus and Daniel Horak)
-New port to Cobalt Qube(Mips) running Linux(Tatsuo)
-Port to NetBSD/m68k(Mr. Mutsuki Nakajima)
-Port to NetBSD/sun3(Mr. Mutsuki Nakajima)
-Port to NetBSD/macppc(Toshimi Aoki)
-Fix for tcl/tk configuration(Vince)
-Removed CURRENT keyword for rule queries(Jan)
-NT dynamic loading now works(Daniel Horak)
-Add ARM32 support(Andrew McMurry)
-Better support for HP-UX 11 and UnixWare
-Improve file handling to be more uniform, prevent file descriptor leak(Tom)
-New install commands for plpgsql(Jan)
-
- _________________________________________________________________
-
- Release 6.4.2
-
- Release date: 1998-12-20
-
- The 6.4.1 release was improperly packaged. This also has one
- additional bug fix.
- _________________________________________________________________
-
- Migration to version 6.4.2
-
- A dump/restore is *not* required for those running 6.4.*.
- _________________________________________________________________
-
- Changes
-
-Fix for datetime constant problem on some platforms(Thomas)
- _________________________________________________________________
-
- Release 6.4.1
-
- Release date: 1998-12-18
-
- This is basically a cleanup release for 6.4. We have fixed a variety
- of problems reported by 6.4 users.
- _________________________________________________________________
-
- Migration to version 6.4.1
-
- A dump/restore is *not* required for those running 6.4.
- _________________________________________________________________
-
- Changes
-
-Add pg_dump -N flag to force double quotes around identifiers. This is
- the default(Thomas)
-Fix for NOT in where clause causing crash(Bruce)
-EXPLAIN VERBOSE coredump fix(Vadim)
-Fix shared-library problems on Linux
-Fix test for table existance to allow mixed-case and whitespace in
- the table name(Thomas)
-Fix a couple of pg_dump bugs
-Configure matches template/.similar entries better(Tom)
-Change builtin function names from SPI_* to spi_*
-OR WHERE clause fix(Vadim)
-Fixes for mixed-case table names(Billy)
-contrib/linux/postgres.init.csh/sh fix(Thomas)
-libpq memory overrun fix
-SunOS fixes(Tom)
-Change exp() behavior to generate error on underflow(Thomas)
-pg_dump fixes for memory leak, inheritance constraints, layout change
-update pgaccess to 0.93
-Fix prototype for 64-bit platforms
-Multibyte fixes(Tatsuo)
-New ecpg man page
-Fix memory overruns(Tatsuo)
-Fix for lo_import() crash(Bruce)
-Better search for install program(Tom)
-Timezone fixes(Tom)
-HP-UX fixes(Tom)
-Use implicit type coercion for matching DEFAULT values(Thomas)
-Add routines to help with single-byte (internal) character type(Thomas)
-Compilation of libpq for Win32 fixes(Magnus)
-Upgrade to PyGreSQL 2.2(D'Arcy)
- _________________________________________________________________
-
- Release 6.4
-
- Release date: 1998-10-30
-
- There are *many* new features and improvements in this release. Thanks
- to our developers and maintainers, nearly every aspect of the system
- has received some attention since the previous release. Here is a
- brief, incomplete summary:
-
- * Views and rules are now functional thanks to extensive new code in
- the rewrite rules system from Jan Wieck. He also wrote a chapter
- on it for the Programmer's Guide.
- * Jan also contributed a second procedural language, PL/pgSQL, to go
- with the original PL/pgTCL procedural language he contributed last
- release.
- * We have optional multiple-byte character set support from Tatsuo
- Ishii to complement our existing locale support.
- * Client/server communications has been cleaned up, with better
- support for asynchronous messages and interrupts thanks to Tom
- Lane.
- * The parser will now perform automatic type coercion to match
- arguments to available operators and functions, and to match
- columns and expressions with target columns. This uses a generic
- mechanism which supports the type extensibility features of
- PostgreSQL. There is a new chapter in the User's Guide which
- covers this topic.
- * Three new data types have been added. Two types, inet and cidr,
- support various forms of IP network, subnet, and machine
- addressing. There is now an 8-byte integer type available on some
- platforms. See the chapter on data types in the User's Guide for
- details. A fourth type, serial, is now supported by the parser as
- an amalgam of the int4 type, a sequence, and a unique index.
- * Several more SQL92-compatible syntax features have been added,
- including "INSERT DEFAULT VALUES"
- * The automatic configuration and installation system has received
- some attention, and should be more robust for more platforms than
- it has ever been.
- _________________________________________________________________
-
- Migration to version 6.4
-
- A dump/restore using pg_dump or pg_dumpall is required for those
- wishing to migrate data from any previous release of PostgreSQL.
- _________________________________________________________________
-
- Changes
-
-Bug Fixes
----------
-Fix for a tiny memory leak in PQsetdb/PQfinish(Bryan)
-Remove char2-16 data types, use char/varchar(Darren)
-Pqfn not handles a NOTICE message(Anders)
-Reduced busywaiting overhead for spinlocks with many backends (dg)
-Stuck spinlock detection (dg)
-Fix up "ISO-style" timespan decoding and encoding(Thomas)
-Fix problem with table drop after rollback of transaction(Vadim)
-Change error message and remove non-functional update message(Vadim)
-Fix for COPY array checking
-Fix for SELECT 1 UNION SELECT NULL
-Fix for buffer leaks in large object calls(Pascal)
-Change owner from oid to int4 type(Bruce)
-Fix a bug in the oracle compatibility functions btrim() ltrim() and rtrim()
-Fix for shared invalidation cache overflow(Massimo)
-Prevent file descriptor leaks in failed COPY's(Bruce)
-Fix memory leak in libpgtcl's pg_select(Constantin)
-Fix problems with username/passwords over 8 characters(Tom)
-Fix problems with handling of asynchronous NOTIFY in backend(Tom)
-Fix of many bad system table entries(Tom)
-
-Enhancements
-------------
-Upgrade ecpg and ecpglib,see src/interfaces/ecpc/ChangeLog(Michael)
-Show the index used in an EXPLAIN(Zeugswetter)
-EXPLAIN invokes rule system and shows plan(s) for rewritten queries(Jan)
-Multibyte awareness of many data types and functions, via configure(Tatsuo)
-New configure --with-mb option(Tatsuo)
-New initdb --pgencoding option(Tatsuo)
-New createdb -E multibyte option(Tatsuo)
-Select version(); now returns PostgreSQL version(Jeroen)
-Libpq now allows asynchronous clients(Tom)
-Allow cancel from client of backend query(Tom)
-Psql now cancels query with Control-C(Tom)
-Libpq users need not issue dummy queries to get NOTIFY messages(Tom)
-NOTIFY now sends sender's PID, so you can tell whether it was your own(Tom)
-PGresult struct now includes associated error message, if any(Tom)
-Define "tz_hour" and "tz_minute" arguments to date_part()(Thomas)
-Add routines to convert between varchar and bpchar(Thomas)
-Add routines to allow sizing of varchar and bpchar into target columns(Thomas)
-Add bit flags to support timezonehour and minute in data retrieval(Thomas)
-Allow more variations on valid floating point numbers (e.g. ".1", "1e6")(Thomas
-)
-Fixes for unary minus parsing with leading spaces(Thomas)
-Implement TIMEZONE_HOUR, TIMEZONE_MINUTE per SQL92 specs(Thomas)
-Check for and properly ignore FOREIGN KEY column constraints(Thomas)
-Define USER as synonym for CURRENT_USER per SQL92 specs(Thomas)
-Enable HAVING clause but no fixes elsewhere yet.
-Make "char" type a synonym for "char(1)" (actually implemented as bpchar)(Thoma
-s)
-Save string type if specified for DEFAULT clause handling(Thomas)
-Coerce operations involving different data types(Thomas)
-Allow some index use for columns of different types(Thomas)
-Add capabilities for automatic type conversion(Thomas)
-Cleanups for large objects, so file is truncated on open(Peter)
-Readline cleanups(Tom)
-Allow psql \f \ to make spaces as delimiter(Bruce)
-Pass pg_attribute.atttypmod to the frontend for column field lengths(Tom,Bruce)
-Msql compatibility library in /contrib(Aldrin)
-Remove the requirement that ORDER/GROUP BY clause identifiers be
-included in the target list(David)
-Convert columns to match columns in UNION clauses(Thomas)
-Remove fork()/exec() and only do fork()(Bruce)
-Jdbc cleanups(Peter)
-Show backend status on ps command line(only works on some platforms)(Bruce)
-Pg_hba.conf now has a sameuser option in the database field
-Make lo_unlink take oid param, not int4
-New DISABLE_COMPLEX_MACRO for compilers that can't handle our macros(Bruce)
-Libpgtcl now handles NOTIFY as a Tcl event, need not send dummy queries(Tom)
-libpgtcl cleanups(Tom)
-Add -error option to libpgtcl's pg_result command(Tom)
-New locale patch, see docs/README/locale(Oleg)
-Fix for pg_dump so CONSTRAINT and CHECK syntax is correct(ccb)
-New contrib/lo code for large object orphan removal(Peter)
-New psql command "SET CLIENT_ENCODING TO 'encoding'" for multibytes
-feature, see /doc/README.mb(Tatsuo)
-/contrib/noupdate code to revoke update permission on a column
-Libpq can now be compiled on win32(Magnus)
-Add PQsetdbLogin() in libpq
-New 8-byte integer type, checked by configure for OS support(Thomas)
-Better support for quoted table/column names(Thomas)
-Surround table and column names with double-quotes in pg_dump(Thomas)
-PQreset() now works with passwords(Tom)
-Handle case of GROUP BY target list column number out of range(David)
-Allow UNION in subselects
-Add auto-size to screen to \d? commands(Bruce)
-Use UNION to show all \d? results in one query(Bruce)
-Add \d? field search feature(Bruce)
-Pg_dump issues fewer \connect requests(Tom)
-Make pg_dump -z flag work better, document it in manual page(Tom)
-Add HAVING clause with full support for subselects and unions(Stephan)
-Full text indexing routines in contrib/fulltextindex(Maarten)
-Transaction ids now stored in shared memory(Vadim)
-New PGCLIENTENCODING when issuing COPY command(Tatsuo)
-Support for SQL92 syntax "SET NAMES"(Tatsuo)
-Support for LATIN2-5(Tatsuo)
-Add UNICODE regression test case(Tatsuo)
-Lock manager cleanup, new locking modes for LLL(Vadim)
-Allow index use with OR clauses(Bruce)
-Allows "SELECT NULL ORDER BY 1;"
-Explain VERBOSE prints the plan, and now pretty-prints the plan to
-the postmaster log file(Bruce)
-Add indexes display to \d command(Bruce)
-Allow GROUP BY on functions(David)
-New pg_class.relkind for large objects(Bruce)
-New way to send libpq NOTICE messages to a different location(Tom)
-New \w write command to psql(Bruce)
-New /contrib/findoidjoins scans oid columns to find join relationships(Bruce)
-Allow binary-compatible indexes to be considered when checking for valid
-Indexes for restriction clauses containing a constant(Thomas)
-New ISBN/ISSN code in /contrib/isbn_issn
-Allow NOT LIKE, IN, NOT IN, BETWEEN, and NOT BETWEEN constraint(Thomas)
-New rewrite system fixes many problems with rules and views(Jan)
- * Rules on relations work
- * Event qualifications on insert/update/delete work
- * New OLD variable to reference CURRENT, CURRENT will be remove in futu
-re
- * Update rules can reference NEW and OLD in rule qualifications/actions
- * Insert/update/delete rules on views work
- * Multiple rule actions are now supported, surrounded by parentheses
- * Regular users can create views/rules on tables they have RULE permits
- * Rules and views inherit the permissions on the creator
- * No rules at the column level
- * No UPDATE NEW/OLD rules
- * New pg_tables, pg_indexes, pg_rules and pg_views system views
- * Only a single action on SELECT rules
- * Total rewrite overhaul, perhaps for 6.5
- * handle subselects
- * handle aggregates on views
- * handle insert into select from view works
-System indexes are now multikey(Bruce)
-Oidint2, oidint4, and oidname types are removed(Bruce)
-Use system cache for more system table lookups(Bruce)
-New backend programming language PL/pgSQL in backend/pl(Jan)
-New SERIAL data type, auto-creates sequence/index(Thomas)
-Enable assert checking without a recompile(Massimo)
-User lock enhancements(Massimo)
-New setval() command to set sequence value(Massimo)
-Auto-remove unix socket file on start-up if no postmaster running(Massimo)
-Conditional trace package(Massimo)
-New UNLISTEN command(Massimo)
-Psql and libpq now compile under win32 using win32.mak(Magnus)
-Lo_read no longer stores trailing NULL(Bruce)
-Identifiers are now truncated to 31 characters internally(Bruce)
-Createuser options now availble on the command line
-Code for 64-bit integer supported added, configure tested, int8 type(Thomas)
-Prevent file descriptor leaf from failed COPY(Bruce)
-New pg_upgrade command(Bruce)
-Updated /contrib directories(Massimo)
-New CREATE TABLE DEFAULT VALUES statement available(Thomas)
-New INSERT INTO TABLE DEFAULT VALUES statement available(Thomas)
-New DECLARE and FETCH feature(Thomas)
-libpq's internal structures now not exported(Tom)
-Allow up to 8 key indexes(Bruce)
-Remove ARCHIVE keyword, that is no longer used(Thomas)
-pg_dump -n flag to supress quotes around indentifiers
-disable system columns for views(Jan)
-new INET and CIDR types for network addresses(TomH, Paul)
-no more double quotes in psql output
-pg_dump now dumps views(Terry)
-new SET QUERY_LIMIT(Tatsuo,Jan)
-
-Source Tree Changes
--------------------
-/contrib cleanup(Jun)
-Inline some small functions called for every row(Bruce)
-Alpha/linux fixes
-HP-UX cleanups(Tom)
-Multibyte regression tests(Soonmyung.)
-Remove --disabled options from configure
-Define PGDOC to use POSTGRESDIR by default
-Make regression optional
-Remove extra braces code to pgindent(Bruce)
-Add bsdi shared library support(Bruce)
-New --without-CXX support configure option(Brook)
-New FAQ_CVS
-Update backend flowchart in tools/backend(Bruce)
-Change atttypmod from int16 to int32(Bruce, Tom)
-Getrusage() fix for platforms that do not have it(Tom)
-Add PQconnectdb, PGUSER, PGPASSWORD to libpq man page
-NS32K platform fixes(Phil Nelson, John Buller)
-SCO 7/UnixWare 2.x fixes(Billy,others)
-Sparc/Solaris 2.5 fixes(Ryan)
-Pgbuiltin.3 is obsolete, move to doc files(Thomas)
-Even more documention(Thomas)
-Nextstep support(Jacek)
-Aix support(David)
-pginterface manual page(Bruce)
-shared libraries all have version numbers
-merged all OS-specific shared library defines into one file
-smarter TCL/TK configuration checking(Billy)
-smarter perl configuration(Brook)
-configure uses supplied install-sh if no install script found(Tom)
-new Makefile.shlib for shared library configuration(Tom)
- _________________________________________________________________
-
- Release 6.3.2
-
- Release date: 1998-04-07
-
- This is a bug-fix release for 6.3.x. Refer to the release notes for
- version 6.3 for a more complete summary of new features.
-
- Summary:
-
- * Repairs automatic configuration support for some platforms,
- including Linux, from breakage inadvertently introduced in version
- 6.3.1.
- * Correctly handles function calls on the left side of BETWEEN and
- LIKE clauses.
-
- A dump/restore is NOT required for those running 6.3 or 6.3.1. A make
- distclean, make, and make install is all that is required. This last
- step should be performed while the postmaster is not running. You
- should re-link any custom applications that use PostgreSQL libraries.
-
- For upgrades from pre-6.3 installations, refer to the installation and
- migration instructions for version 6.3.
- _________________________________________________________________
-
- Changes
-
-Configure detection improvements for tcl/tk(Brook Milligan, Alvin)
-Manual page improvements(Bruce)
-BETWEEN and LIKE fix(Thomas)
-fix for psql \connect used by pg_dump(Oliver Elphick)
-New odbc driver
-pgaccess, version 0.86
-qsort removed, now uses libc version, cleanups(Jeroen)
-fix for buffer over-runs detected(Maurice Gittens)
-fix for buffer overrun in libpgtcl(Randy Kunkee)
-fix for UNION with DISTINCT or ORDER BY(Bruce)
-gettimeofday configure check(Doug Winterburn)
-Fix "indexes not used" bug(Vadim)
-docs additions(Thomas)
-Fix for backend memory leak(Bruce)
-libreadline cleanup(Erwan MAS)
-Remove DISTDIR(Bruce)
-Makefile dependency cleanup(Jeroen van Vianen)
-ASSERT fixes(Bruce)
-
- _________________________________________________________________
-
- Release 6.3.1
-
- Release date: 1998-03-23
-
- Summary:
-
- * Additional support for multibyte character sets.
- * Repair byte ordering for mixed-endian clients and servers.
- * Minor updates to allowed SQL syntax.
- * Improvements to the configuration autodetection for installation.
-
- A dump/restore is NOT required for those running 6.3. A make
- distclean, make, and make install is all that is required. This last
- step should be performed while the postmaster is not running. You
- should re-link any custom applications that use PostgreSQL libraries.
-
- For upgrades from pre-6.3 installations, refer to the installation and
- migration instructions for version 6.3.
- _________________________________________________________________
-
- Changes
-
-ecpg cleanup/fixes, now version 1.1(Michael Meskes)
-pg_user cleanup(Bruce)
-large object fix for pg_dump and tclsh (alvin)
-LIKE fix for multiple adjacent underscores
-fix for redefining builtin functions(Thomas)
-ultrix4 cleanup
-upgrade to pg_access 0.83
-updated CLUSTER manual page
-multibyte character set support, see doc/README.mb(Tatsuo)
-configure --with-pgport fix
-pg_ident fix
-big-endian fix for backend communications(Kataoka)
-SUBSTR() and substring() fix(Jan)
-several jdbc fixes(Peter)
-libpgtcl improvements, see libptcl/README(Randy Kunkee)
-Fix for "Datasize = 0" error(Vadim)
-Prevent \do from wrapping(Bruce)
-Remove duplicate Russian character set entries
-Sunos4 cleanup
-Allow optional TABLE keyword in LOCK and SELECT INTO(Thomas)
-CREATE SEQUENCE options to allow a negative integer(Thomas)
-Add "PASSWORD" as an allowed column identifier(Thomas)
-Add checks for UNION target fields(Bruce)
-Fix Alpha port(Dwayne Bailey)
-Fix for text arrays containing quotes(Doug Gibson)
-Solaris compile fix(Albert Chin-A-Young)
-Better identify tcl and tk libs and includes(Bruce)
-
- _________________________________________________________________
-
- Release 6.3
-
- Release date: 1998-03-01
-
- There are *many* new features and improvements in this release. Here
- is a brief, incomplete summary:
-
- * Many new SQL features, including full SQL92 subselect capability
- (everything is here but target-list subselects).
- * Support for client-side environment variables to specify time zone
- and date style.
- * Socket interface for client/server connection. This is the default
- now so you may need to start postmaster with the "-i" flag.
- * Better password authorization mechanisms. Default table
- permissions have changed.
- * Old-style time travel has been removed. Performance has been
- improved.
-
- Note: Bruce Momjian wrote the following notes to introduce the new
- release.
-
- There are some general 6.3 issues that I want to mention. These are
- only the big items that can not be described in one sentence. A review
- of the detailed changes list is still needed.
-
- First, we now have subselects. Now that we have them, I would like to
- mention that without subselects, SQL is a very limited language.
- Subselects are a major feature, and you should review your code for
- places where subselects provide a better solution for your queries. I
- think you will find that there are more uses for subselects than you
- may think. Vadim has put us on the big SQL map with subselects, and
- fully functional ones too. The only thing you can't do with subselects
- is to use them in the target list.
-
- Second, 6.3 uses Unix domain sockets rather than TCP/IP by default. To
- enable connections from other machines, you have to use the new
- postmaster -i option, and of course edit "pg_hba.conf". Also, for this
- reason, the format of "pg_hba.conf" has changed.
-
- Third, char() fields will now allow faster access than varchar() or
- text. Specifically, the text and varchar() have a penalty for access
- to any columns after the first column of this type. char() used to
- also have this access penalty, but it no longer does. This may suggest
- that you redesign some of your tables, especially if you have short
- character columns that you have defined as varchar() or text. This and
- other changes make 6.3 even faster than earlier releases.
-
- We now have passwords definable independent of any Unix file. There
- are new SQL USER commands. See the Administrator's Guide for more
- information. There is a new table, pg_shadow, which is used to store
- user information and user passwords, and it by default only
- SELECT-able by the postgres super-user. pg_user is now a view of
- pg_shadow, and is SELECT-able by PUBLIC. You should keep using pg_user
- in your application without changes.
-
- User-created tables now no longer have SELECT permission to PUBLIC by
- default. This was done because the ANSI standard requires it. You can
- of course GRANT any permissions you want after the table is created.
- System tables continue to be SELECT-able by PUBLIC.
-
- We also have real deadlock detection code. No more sixty-second
- timeouts. And the new locking code implements a FIFO better, so there
- should be less resource starvation during heavy use.
-
- Many complaints have been made about inadequate documentation in
- previous releases. Thomas has put much effort into many new manuals
- for this release. Check out the doc/ directory.
-
- For performance reasons, time travel is gone, but can be implemented
- using triggers (see "pgsql/contrib/spi/README"). Please check out the
- new \d command for types, operators, etc. Also, views have their own
- permissions now, not based on the underlying tables, so permissions on
- them have to be set separately. Check "/pgsql/interfaces" for some new
- ways to talk to PostgreSQL.
-
- This is the first release that really required an explanation for
- existing users. In many ways, this was necessary because the new
- release removes many limitations, and the work-arounds people were
- using are no longer needed.
- _________________________________________________________________
-
- Migration to version 6.3
-
- A dump/restore using pg_dump or pg_dumpall is required for those
- wishing to migrate data from any previous release of PostgreSQL.
- _________________________________________________________________
-
- Changes
-
-Bug Fixes
----------
-Fix binary cursors broken by MOVE implementation(Vadim)
-Fix for tcl library crash(Jan)
-Fix for array handling, from Gerhard Hintermayer
-Fix acl error, and remove duplicate pqtrace(Bruce)
-Fix psql \e for empty file(Bruce)
-Fix for textcat on varchar() fields(Bruce)
-Fix for DBT Sendproc (Zeugswetter Andres)
-Fix vacuum analyze syntax problem(Bruce)
-Fix for international identifiers(Tatsuo)
-Fix aggregates on inherited tables(Bruce)
-Fix substr() for out-of-bounds data
-Fix for select 1=1 or 2=2, select 1=1 and 2=2, and select sum(2+2)(Bruce)
-Fix notty output to show status result. -q option still turns it off(Bruce)
-Fix for count(*), aggs with views and multiple tables and sum(3)(Bruce)
-Fix cluster(Bruce)
-Fix for PQtrace start/stop several times(Bruce)
-Fix a variety of locking problems like newer lock waiters getting
- lock before older waiters, and having readlock people not share
- locks if a writer is waiting for a lock, and waiting writers not
- getting priority over waiting readers(Bruce)
-Fix crashes in psql when executing queries from external files(James)
-Fix problem with multiple order by columns, with the first one having
- NULL values(Jeroen)
-Use correct hash table support functions for float8 and int4(Thomas)
-Re-enable JOIN= option in CREATE OPERATOR statement (Thomas)
-Change precedence for boolean operators to match expected behavior(Thomas)
-Generate elog(ERROR) on over-large integer(Bruce)
-Allow multiple-argument functions in constraint clauses(Thomas)
-Check boolean input literals for 'true','false','yes','no','1','0'
- and throw elog(ERROR) if unrecognized(Thomas)
-Major large objects fix
-Fix for GROUP BY showing duplicates(Vadim)
-Fix for index scans in MergeJion(Vadim)
-
-Enhancements
-------------
-Subselects with EXISTS, IN, ALL, ANY keywords (Vadim, Bruce, Thomas)
-New User Manual(Thomas, others)
-Speedup by inlining some frequently-called functions
-Real deadlock detection, no more timeouts(Bruce)
-Add SQL92 "constants" CURRENT_DATE, CURRENT_TIME, CURRENT_TIMESTAMP,
- CURRENT_USER(Thomas)
-Modify constraint syntax to be SQL92-compliant(Thomas)
-Implement SQL92 PRIMARY KEY and UNIQUE clauses using indexes(Thomas)
-Recognize SQL92 syntax for FOREIGN KEY. Throw elog notice(Thomas)
-Allow NOT NULL UNIQUE constraint clause (each allowed separately before)(Thomas
-)
-Allow PostgreSQL-style casting ("::") of non-constants(Thomas)
-Add support for SQL3 TRUE and FALSE boolean constants(Thomas)
-Support SQL92 syntax for IS TRUE/IS FALSE/IS NOT TRUE/IS NOT FALSE(Thomas)
-Allow shorter strings for boolean literals (e.g. "t", "tr", "tru")(Thomas)
-Allow SQL92 delimited identifiers(Thomas)
-Implement SQL92 binary and hexadecimal string decoding (b'10' and x'1F')(Thomas
-)
-Support SQL92 syntax for type coercion of literal strings
- (e.g. "DATETIME 'now'")(Thomas)
-Add conversions for int2, int4, and OID types to and from text(Thomas)
-Use shared lock when building indexes(Vadim)
-Free memory allocated for an user query inside transaction block after
- this query is done, was turned off in <= 6.2.1(Vadim)
-New SQL statement CREATE PROCEDURAL LANGUAGE(Jan)
-New PostgreSQL Procedural Language (PL) backend interface(Jan)
-Rename pg_dump -H option to -h(Bruce)
-Add Java support for passwords, European dates(Peter)
-Use indexes for LIKE and ~, !~ operations(Bruce)
-Add hash functions for datetime and timespan(Thomas)
-Time Travel removed(Vadim, Bruce)
-Add paging for \d and \z, and fix \i(Bruce)
-Add Unix domain socket support to backend and to frontend library(Goran)
-Implement CREATE DATABASE/WITH LOCATION and initlocation utility(Thomas)
-Allow more SQL92 and/or PostgreSQL reserved words as column identifiers(Thomas)
-Augment support for SQL92 SET TIME ZONE...(Thomas)
-SET/SHOW/RESET TIME ZONE uses TZ backend environment variable(Thomas)
-Implement SET keyword = DEFAULT and SET TIME ZONE DEFAULT(Thomas)
-Enable SET TIME ZONE using TZ environment variable(Thomas)
-Add PGDATESTYLE environment variable to frontend and backend initialization(Tho
-mas)
-Add PGTZ, PGCOSTHEAP, PGCOSTINDEX, PGRPLANS, PGGEQO
- frontend library initialization environment variables(Thomas)
-Regression tests time zone automatically set with "setenv PGTZ PST8PDT"(Thomas)
-Add pg_description table for info on tables, columns, operators, types, and
- aggregates(Bruce)
-Increase 16 char limit on system table/index names to 32 characters(Bruce)
-Rename system indexes(Bruce)
-Add 'GERMAN' option to SET DATESTYLE(Thomas)
-Define an "ISO-style" timespan output format with "hh:mm:ss" fields(Thomas)
-Allow fractional values for delta times (e.g. '2.5 days')(Thomas)
-Validate numeric input more carefully for delta times(Thomas)
-Implement day of year as possible input to date_part()(Thomas)
-Define timespan_finite() and text_timespan() functions(Thomas)
-Remove archive stuff(Bruce)
-Allow for a pg_password authentication database that is separate from
- the system password file(Todd)
-Dump ACLs, GRANT, REVOKE permissions(Matt)
-Define text, varchar, and bpchar string length functions(Thomas)
-Fix Query handling for inheritance, and cost computations(Bruce)
-Implement CREATE TABLE/AS SELECT (alternative to SELECT/INTO)(Thomas)
-Allow NOT, IS NULL, IS NOT NULL in constraints(Thomas)
-Implement UNIONs for SELECT(Bruce)
-Add UNION, GROUP, DISTINCT to INSERT(Bruce)
-varchar() stores only necessary bytes on disk(Bruce)
-Fix for BLOBs(Peter)
-Mega-Patch for JDBC...see README_6.3 for list of changes(Peter)
-Remove unused "option" from PQconnectdb()
-New LOCK command and lock manual page describing deadlocks(Bruce)
-Add new psql \da, \dd, \df, \do, \dS, and \dT commands(Bruce)
-Enhance psql \z to show sequences(Bruce)
-Show NOT NULL and DEFAULT in psql \d table(Bruce)
-New psql .psqlrc file start-up(Andrew)
-Modify sample start-up script in contrib/linux to show syslog(Thomas)
-New types for IP and MAC addresses in contrib/ip_and_mac(TomH)
-Unix system time conversions with date/time types in contrib/unixdate(Thomas)
-Update of contrib stuff(Massimo)
-Add Unix socket support to DBD::Pg(Goran)
-New python interface (PyGreSQL 2.0)(D'Arcy)
-New frontend/backend protocol has a version number, network byte order(Phil)
-Security features in pg_hba.conf enhanced and documented, many cleanups(Phil)
-CHAR() now faster access than VARCHAR() or TEXT
-ecpg embedded SQL preprocessor
-Reduce system column overhead(Vadmin)
-Remove pg_time table(Vadim)
-Add pg_type attribute to identify types that need length (bpchar, varchar)
-Add report of offending line when COPY command fails
-Allow VIEW permissions to be set separately from the underlying tables.
- For security, use GRANT/REVOKE on views as appropriate(Jan)
-Tables now have no default GRANT SELECT TO PUBLIC. You must
- explicitly grant such permissions.
-Clean up tutorial examples(Darren)
-
-Source Tree Changes
--------------------
-Add new html development tools, and flow chart in /tools/backend
-Fix for SCO compiles
-Stratus computer port Robert Gillies
-Added support for shlib for BSD44_derived & i386_solaris
-Make configure more automated(Brook)
-Add script to check regression test results
-Break parser functions into smaller files, group together(Bruce)
-Rename heap_create to heap_create_and_catalog, rename heap_creatr
- to heap_create()(Bruce)
-Sparc/Linux patch for locking(TomS)
-Remove PORTNAME and reorganize port-specific stuff(Marc)
-Add optimizer README file(Bruce)
-Remove some recursion in optimizer and clean up some code there(Bruce)
-Fix for NetBSD locking(Henry)
-Fix for libptcl make(Tatsuo)
-AIX patch(Darren)
-Change IS TRUE, IS FALSE, ... to expressions using "=" rather than
- function calls to istrue() or isfalse() to allow optimization(Thomas)
-Various fixes NetBSD/Sparc related(TomH)
-Alpha linux locking(Travis,Ryan)
-Change elog(WARN) to elog(ERROR)(Bruce)
-FAQ for FreeBSD(Marc)
-Bring in the PostODBC source tree as part of our standard distribution(Marc)
-A minor patch for HP/UX 10 vs 9(Stan)
-New pg_attribute.atttypmod for type-specific info like varchar length(Bruce)
-UnixWare patches(Billy)
-New i386 'lock' for spin lock asm(Billy)
-Support for multiplexed backends is removed
-Start an OpenBSD port
-Start an AUX port
-Start a Cygnus port
-Add string functions to regression suite(Thomas)
-Expand a few function names formerly truncated to 16 characters(Thomas)
-Remove un-needed malloc() calls and replace with palloc()(Bruce)
- _________________________________________________________________
-
- Release 6.2.1
-
- Release date: 1997-10-17
-
- 6.2.1 is a bug-fix and usability release on 6.2.
-
- Summary:
-
- * Allow strings to span lines, per SQL92.
- * Include example trigger function for inserting user names on table
- updates.
-
- This is a minor bug-fix release on 6.2. For upgrades from pre-6.2
- systems, a full dump/reload is required. Refer to the 6.2 release
- notes for instructions.
- _________________________________________________________________
-
- Migration from version 6.2 to version 6.2.1
-
- This is a minor bug-fix release. A dump/reload is not required from
- version 6.2, but is required from any release prior to 6.2.
-
- In upgrading from version 6.2, if you choose to dump/reload you will
- find that avg(money) is now calculated correctly. All other bug fixes
- take effect upon updating the executables.
-
- Another way to avoid dump/reload is to use the following SQL command
- from "psql" to update the existing system table:
- update pg_aggregate set aggfinalfn = 'cash_div_flt8'
- where aggname = 'avg' and aggbasetype = 790;
-
- This will need to be done to every existing database, including
- template1.
- _________________________________________________________________
-
- Changes
-
-Allow TIME and TYPE column names(Thomas)
-Allow larger range of true/false as boolean values(Thomas)
-Support output of "now" and "current"(Thomas)
-Handle DEFAULT with INSERT of NULL properly(Vadim)
-Fix for relation reference counts problem in buffer manager(Vadim)
-Allow strings to span lines, like ANSI(Thomas)
-Fix for backward cursor with ORDER BY(Vadim)
-Fix avg(cash) computation(Thomas)
-Fix for specifying a column twice in ORDER/GROUP BY(Vadim)
-Documented new libpq function to return affected rows, PQcmdTuples(Bruce)
-Trigger function for inserting user names for INSERT/UPDATE(Brook Milligan)
-
- _________________________________________________________________
-
- Release 6.2
-
- Release date: 1997-10-02
-
- A dump/restore is required for those wishing to migrate data from
- previous releases of PostgreSQL.
- _________________________________________________________________
-
- Migration from version 6.1 to version 6.2
-
- This migration requires a complete dump of the 6.1 database and a
- restore of the database in 6.2.
-
- Note that the "pg_dump" and "pg_dumpall" utility from 6.2 should be
- used to dump the 6.1 database.
- _________________________________________________________________
-
- Migration from version 1.x to version 6.2
-
- Those migrating from earlier 1.* releases should first upgrade to 1.09
- because the COPY output format was improved from the 1.02 release.
- _________________________________________________________________
-
- Changes
-
-Bug Fixes
----------
-Fix problems with pg_dump for inheritance, sequences, archive tables(Bruce)
-Fix compile errors on overflow due to shifts, unsigned, and bad prototypes
- from Solaris(Diab Jerius)
-Fix bugs in geometric line arithmetic (bad intersection calculations)(Thomas)
-Check for geometric intersections at endpoints to avoid rounding ugliness(Thoma
-s)
-Catch non-functional delete attempts(Vadim)
-Change time function names to be more consistent(Michael Reifenberg)
-Check for zero divides(Michael Reifenberg)
-Fix very old bug which made tuples changed/inserted by a commnd
- visible to the command itself (so we had multiple update of
- updated tuples, etc)(Vadim)
-Fix for SELECT null, 'fail' FROM pg_am (Patrick)
-SELECT NULL as EMPTY_FIELD now allowed(Patrick)
-Remove un-needed signal stuff from contrib/pginterface
-Fix OR (where x != 1 or x isnull didn't return tuples with x NULL) (Vadim)
-Fix time_cmp function (Vadim)
-Fix handling of functions with non-attribute first argument in
- WHERE clauses (Vadim)
-Fix GROUP BY when order of entries is different from order
- in target list (Vadim)
-Fix pg_dump for aggregates without sfunc1 (Vadim)
-
-Enhancements
-------------
-Default genetic optimizer GEQO parameter is now 8(Bruce)
-Allow use parameters in target list having aggregates in functions(Vadim)
-Added JDBC driver as an interface(Adrian & Peter)
-pg_password utility
-Return number of tuples inserted/affected by INSERT/UPDATE/DELETE etc.(Vadim)
-Triggers implemented with CREATE TRIGGER (SQL3)(Vadim)
-SPI (Server Programming Interface) allows execution of queries inside
- C-functions (Vadim)
-NOT NULL implemented (SQL92)(Robson Paniago de Miranda)
-Include reserved words for string handling, outer joins, and unions(Thomas)
-Implement extended comments ("/* ... */") using exclusive states(Thomas)
-Add "//" single-line comments(Bruce)
-Remove some restrictions on characters in operator names(Thomas)
-DEFAULT and CONSTRAINT for tables implemented (SQL92)(Vadim & Thomas)
-Add text concatenation operator and function (SQL92)(Thomas)
-Support WITH TIME ZONE syntax (SQL92)(Thomas)
-Support INTERVAL unit TO unit syntax (SQL92)(Thomas)
-Define types DOUBLE PRECISION, INTERVAL, CHARACTER,
- and CHARACTER VARYING (SQL92)(Thomas)
-Define type FLOAT(p) and rudimentary DECIMAL(p,s), NUMERIC(p,s) (SQL92)(Thomas)
-Define EXTRACT(), POSITION(), SUBSTRING(), and TRIM() (SQL92)(Thomas)
-Define CURRENT_DATE, CURRENT_TIME, CURRENT_TIMESTAMP (SQL92)(Thomas)
-Add syntax and warnings for UNION, HAVING, INNER and OUTER JOIN (SQL92)(Thomas)
-Add more reserved words, mostly for SQL92 compliance(Thomas)
-Allow hh:mm:ss time entry for timespan/reltime types(Thomas)
-Add center() routines for lseg, path, polygon(Thomas)
-Add distance() routines for circle-polygon, polygon-polygon(Thomas)
-Check explicitly for points and polygons contained within polygons
- using an axis-crossing algorithm(Thomas)
-Add routine to convert circle-box(Thomas)
-Merge conflicting operators for different geometric data types(Thomas)
-Replace distance operator "<===>" with "<->"(Thomas)
-Replace "above" operator "!^" with ">^" and "below" operator "!|" with "<^"(Tho
-mas)
-Add routines for text trimming on both ends, substring, and string position(Tho
-mas)
-Added conversion routines circle(box) and poly(circle)(Thomas)
-Allow internal sorts to be stored in memory rather than in files(Bruce & Vadim)
-Allow functions and operators on internally-identical types to succeed(Bruce)
-Speed up backend start-up after profiling analysis(Bruce)
-Inline frequently called functions for performance(Bruce)
-Reduce open() calls(Bruce)
-psql: Add PAGER for \h and \?,\C fix
-Fix for psql pager when no tty(Bruce)
-New entab utility(Bruce)
-General trigger functions for referential integrity (Vadim)
-General trigger functions for time travel (Vadim)
-General trigger functions for AUTOINCREMENT/IDENTITY feature (Vadim)
-MOVE implementation (Vadim)
-
-Source Tree Changes
--------------------
-HP-UX 10 patches (Vladimir Turin)
-Added SCO support, (Daniel Harris)
-MkLinux patches (Tatsuo Ishii)
-Change geometric box terminology from "length" to "width"(Thomas)
-Deprecate temporary unstored slope fields in geometric code(Thomas)
-Remove restart instructions from INSTALL(Bruce)
-Look in /usr/ucb first for install(Bruce)
-Fix c++ copy example code(Thomas)
-Add -o to psql manual page(Bruce)
-Prevent relname unallocated string length from being copied into database(Bruce
-)
-Cleanup for NAMEDATALEN use(Bruce)
-Fix pg_proc names over 15 chars in output(Bruce)
-Add strNcpy() function(Bruce)
-remove some (void) casts that are unnecessary(Bruce)
-new interfaces directory(Marc)
-Replace fopen() calls with calls to fd.c functions(Bruce)
-Make functions static where possible(Bruce)
-enclose unused functions in #ifdef NOT_USED(Bruce)
-Remove call to difftime() in timestamp support to fix SunOS(Bruce & Thomas)
-Changes for Digital Unix
-Portability fix for pg_dumpall(Bruce)
-Rename pg_attribute.attnvals to attdispersion(Bruce)
-"intro/unix" manual page now "pgintro"(Bruce)
-"built-in" manual page now "pgbuiltin"(Bruce)
-"drop" manual page now "drop_table"(Bruce)
-Add "create_trigger", "drop_trigger" manual pages(Thomas)
-Add constraints regression test(Vadim & Thomas)
-Add comments syntax regression test(Thomas)
-Add PGINDENT and support program(Bruce)
-Massive commit to run PGINDENT on all *.c and *.h files(Bruce)
-Files moved to /src/tools directory(Bruce)
-SPI and Trigger programming guides (Vadim & D'Arcy)
- _________________________________________________________________
-
- Release 6.1.1
-
- Release date: 1997-07-22
- _________________________________________________________________
-
- Migration from version 6.1 to version 6.1.1
-
- This is a minor bug-fix release. A dump/reload is not required from
- version 6.1, but is required from any release prior to 6.1. Refer to
- the release notes for 6.1 for more details.
- _________________________________________________________________
-
- Changes
-
-fix for SET with options (Thomas)
-allow pg_dump/pg_dumpall to preserve ownership of all tables/objects(Bruce)
-new psql \connect option allows changing usernames without changing databases
-fix for initdb --debug option(Yoshihiko Ichikawa))
-lextest cleanup(Bruce)
-hash fixes(Vadim)
-fix date/time month boundary arithmetic(Thomas)
-fix timezone daylight handling for some ports(Thomas, Bruce, Tatsuo)
-timestamp overhauled to use standard functions(Thomas)
-other code cleanup in date/time routines(Thomas)
-psql's \d now case-insensitive(Bruce)
-psql's backslash commands can now have trailing semicolon(Bruce)
-fix memory leak in psql when using \g(Bruce)
-major fix for endian handling of communication to server(Thomas, Tatsuo)
-Fix for Solaris assembler and include files(Yoshihiko Ichikawa)
-allow underscores in usernames(Bruce)
-pg_dumpall now returns proper status, portability fix(Bruce)
-
- _________________________________________________________________
-
- Release 6.1
-
- Release date: 1997-06-08
-
- The regression tests have been adapted and extensively modified for
- the 6.1 release of PostgreSQL.
-
- Three new data types (datetime, timespan, and circle) have been added
- to the native set of PostgreSQL types. Points, boxes, paths, and
- polygons have had their output formats made consistent across the data
- types. The polygon output in misc.out has only been spot-checked for
- correctness relative to the original regression output.
-
- PostgreSQL 6.1 introduces a new, alternate optimizer which uses
- genetic algorithms. These algorithms introduce a random behavior in
- the ordering of query results when the query contains multiple
- qualifiers or multiple tables (giving the optimizer a choice on order
- of evaluation). Several regression tests have been modified to
- explicitly order the results, and hence are insensitive to optimizer
- choices. A few regression tests are for data types which are
- inherently unordered (e.g. points and time intervals) and tests
- involving those types are explicitly bracketed with "set geqo to
- 'off'" and "reset geqo".
-
- The interpretation of array specifiers (the curly braces around atomic
- values) appears to have changed sometime after the original regression
- tests were generated. The current "./expected/*.out" files reflect
- this new interpretation, which may not be correct!
-
- The float8 regression test fails on at least some platforms. This is
- due to differences in implementations of pow() and exp() and the
- signaling mechanisms used for overflow and underflow conditions.
-
- The "random" results in the random test should cause the "random" test
- to be "failed", since the regression tests are evaluated using a
- simple diff. However, "random" does not seem to produce random results
- on my test machine (Linux/gcc/i686).
- _________________________________________________________________
-
- Migration to version 6.1
-
- This migration requires a complete dump of the 6.0 database and a
- restore of the database in 6.1.
-
- Those migrating from earlier 1.* releases should first upgrade to 1.09
- because the COPY output format was improved from the 1.02 release.
- _________________________________________________________________
-
- Changes
-
-Bug Fixes
----------
-packet length checking in library routines
-lock manager priority patch
-check for under/over flow of float8(Bruce)
-multitable join fix(Vadim)
-SIGPIPE crash fix(Darren)
-large object fixes(Sven)
-allow btree indexes to handle NULLs(Vadim)
-timezone fixes(D'Arcy)
-select SUM(x) can return NULL on no rows(Thomas)
-internal optimizer, executor bug fixes(Vadim)
-fix problem where inner loop in < or <= has no rows(Vadim)
-prevent re-commuting join index clauses(Vadim)
-fix join clauses for multiple tables(Vadim)
-fix hash, hashjoin for arrays(Vadim)
-fix btree for abstime type(Vadim)
-large object fixes(Raymond)
-fix buffer leak in hash indexes (Vadim)
-fix rtree for use in inner scan (Vadim)
-fix gist for use in inner scan, cleanups (Vadim, Andrea)
-avoid unnecessary local buffers allocation (Vadim, Massimo)
-fix local buffers leak in transaction aborts (Vadim)
-fix file manager memmory leaks, cleanups (Vadim, Massimo)
-fix storage manager memmory leaks (Vadim)
-fix btree duplicates handling (Vadim)
-fix deleted tuples re-incarnation caused by vacuum (Vadim)
-fix SELECT varchar()/char() INTO TABLE made zero-length fields(Bruce)
-many psql, pg_dump, and libpq memory leaks fixed using Purify (Igor)
-
-Enhancements
-------------
-attribute optimization statistics(Bruce)
-much faster new btree bulk load code(Paul)
-BTREE UNIQUE added to bulk load code(Vadim)
-new lock debug code(Massimo)
-massive changes to libpg++(Leo)
-new GEQO optimizer speeds table multitable optimization(Martin)
-new WARN message for non-unique insert into unique key(Marc)
-update x=-3, no spaces, now valid(Bruce)
-remove case-sensitive identifier handling(Bruce,Thomas,Dan)
-debug backend now pretty-prints tree(Darren)
-new Oracle character functions(Edmund)
-new plaintext password functions(Dan)
-no such class or insufficient privilege changed to distinct messages(Dan)
-new ANSI timestamp function(Dan)
-new ANSI Time and Date types (Thomas)
-move large chunks of data in backend(Martin)
-multicolumn btree indexes(Vadim)
-new SET var TO value command(Martin)
-update transaction status on reads(Dan)
-new locale settings for character types(Oleg)
-new SEQUENCE serial number generator(Vadim)
-GROUP BY function now possible(Vadim)
-re-organize regression test(Thomas,Marc)
-new optimizer operation weights(Vadim)
-new psql \z grant/permit option(Marc)
-new MONEY data type(D'Arcy,Thomas)
-tcp socket communication speed improved(Vadim)
-new VACUUM option for attribute statistics, and for certain columns (Vadim)
-many geometric type improvements(Thomas,Keith)
-additional regression tests(Thomas)
-new datestyle variable(Thomas,Vadim,Martin)
-more comparison operators for sorting types(Thomas)
-new conversion functions(Thomas)
-new more compact btree format(Vadim)
-allow pg_dumpall to preserve database ownership(Bruce)
-new SET GEQO=# and R_PLANS variable(Vadim)
-old (!GEQO) optimizer can use right-sided plans (Vadim)
-typechecking improvement in SQL parser(Bruce)
-new SET, SHOW, RESET commands(Thomas,Vadim)
-new \connect database USER option
-new destroydb -i option (Igor)
-new \dt and \di psql commands (Darren)
-SELECT "\n" now escapes newline (A. Duursma)
-new geometry conversion functions from old format (Thomas)
-
-Source tree changes
--------------------
-new configuration script(Marc)
-readline configuration option added(Marc)
-OS-specific configuration options removed(Marc)
-new OS-specific template files(Marc)
-no more need to edit Makefile.global(Marc)
-re-arrange include files(Marc)
-nextstep patches (Gregor Hoffleit)
-removed WIN32-specific code(Bruce)
-removed postmaster -e option, now only postgres -e option (Bruce)
-merge duplicate library code in front/backends(Martin)
-now works with eBones, international Kerberos(Jun)
-more shared library support
-c++ include file cleanup(Bruce)
-warn about buggy flex(Bruce)
-DG/UX, Ultrix, IRIX, AIX portability fixes
- _________________________________________________________________
-
- Release 6.0
-
- Release date: 1997-01-29
-
- A dump/restore is required for those wishing to migrate data from
- previous releases of PostgreSQL.
- _________________________________________________________________
-
- Migration from version 1.09 to version 6.0
-
- This migration requires a complete dump of the 1.09 database and a
- restore of the database in 6.0.
- _________________________________________________________________
-
- Migration from pre-1.09 to version 6.0
-
- Those migrating from earlier 1.* releases should first upgrade to 1.09
- because the COPY output format was improved from the 1.02 release.
- _________________________________________________________________
-
- Changes
-
-Bug Fixes
----------
-ALTER TABLE bug - running postgress process needs to re-read table definition
-Allow vacuum to be run on one table or entire database(Bruce)
-Array fixes
-Fix array over-runs of memory writes(Kurt)
-Fix elusive btree range/non-range bug(Dan)
-Fix for hash indexes on some types like time and date
-Fix for pg_log size explosion
-Fix permissions on lo_export()(Bruce)
-Fix unitialized reads of memory(Kurt)
-Fixed ALTER TABLE ... char(3) bug(Bruce)
-Fixed a few small memory leaks
-Fixed EXPLAIN handling of options and changed full_path option name
-Fixed output of group acl permissions
-Memory leaks (hunt and destroy with tools like Purify(Kurt)
-Minor improvements to rules system
-NOTIFY fixes
-New asserts for run-checking
-Overhauled parser/analyze code to properly report errors and increase speed
-Pg_dump -d now handles NULL's properly(Bruce)
-Prevent SELECT NULL from crashing server (Bruce)
-Properly report errors when INSERT ... SELECT columns did not match
-Properly report errors when insert column names were not correct
-Psql \g filename now works(Bruce)
-Psql fixed problem with multiple statements on one line with multiple outputs
-Removed duplicate system OIDs
-SELECT * INTO TABLE . GROUP/ORDER BY gives unlink error if table exists(Bruce)
-Several fixes for queries that crashed the backend
-Starting quote in insert string errors(Bruce)
-Submitting an empty query now returns empty status, not just " " query(Bruce)
-
-Enhancements
-------------
-Add EXPLAIN manual page(Bruce)
-Add UNIQUE index capability(Dan)
-Add hostname/user level access control rather than just hostname and user
-Add synonym of != for <>(Bruce)
-Allow "select oid,* from table"
-Allow BY,ORDER BY to specify columns by number, or by non-alias table.column(Br
-uce)
-Allow COPY from the frontend(Bryan)
-Allow GROUP BY to use alias column name(Bruce)
-Allow actual compression, not just reuse on the same page(Vadim)
-Allow installation-configuration option to auto-add all local users(Bryan)
-Allow libpq to distinguish between text value '' and null(Bruce)
-Allow non-postgres users with createdb privs to destroydb's
-Allow restriction on who can create C functions(Bryan)
-Allow restriction on who can do backend COPY(Bryan)
-Can shrink tables, pg_time and pg_log(Vadim & Erich)
-Change debug level 2 to print queries only, changed debug heading layout(Bruce)
-Change default decimal constant representation from float4 to float8(Bruce)
-European date format now set when postmaster is started
-Execute lowercase function names if not found with exact case
-Fixes for aggregate/GROUP processing, allow 'select sum(func(x),sum(x+y) from z
-'
-Gist now included in the distrubution(Marc)
-Idend authentication of local users(Bryan)
-Implement BETWEEN qualifier(Bruce)
-Implement IN qualifier(Bruce)
-Libpq has PQgetisnull()(Bruce)
-Libpq++ improvements
-New options to initdb(Bryan)
-Pg_dump allow dump of OIDs(Bruce)
-Pg_dump create indexes after tables are loaded for speed(Bruce)
-Pg_dumpall dumps all databases, and the user table
-Pginterface additions for NULL values(Bruce)
-Prevent postmaster from being run as root
-Psql \h and \? is now readable(Bruce)
-Psql allow backslashed, semicolons anywhere on the line(Bruce)
-Psql changed command prompt for lines in query or in quotes(Bruce)
-Psql char(3) now displays as (bp)char in \d output(Bruce)
-Psql return code now more accurate(Bryan?)
-Psql updated help syntax(Bruce)
-Re-visit and fix vacuum(Vadim)
-Reduce size of regression diffs, remove timezone name difference(Bruce)
-Remove compile-time parameters to enable binary distributions(Bryan)
-Reverse meaning of HBA masks(Bryan)
-Secure Authentication of local users(Bryan)
-Speed up vacuum(Vadim)
-Vacuum now had VERBOSE option(Bruce)
-
-Source tree changes
--------------------
-All functions now have prototypes that are compared against the calls
-Allow asserts to be disabled easly from Makefile.global(Bruce)
-Change oid constants used in code to #define names
-Decoupled sparc and solaris defines(Kurt)
-Gcc -Wall compiles cleanly with warnings only from unfixable constructs
-Major include file reorganization/reduction(Marc)
-Make now stops on compile failure(Bryan)
-Makefile restructuring(Bryan, Marc)
-Merge bsdi_2_1 to bsdi(Bruce)
-Monitor program removed
-Name change from Postgres95 to PostgreSQL
-New config.h file(Marc, Bryan)
-PG_VERSION now set to 6.0 and used by postmaster
-Portability additions, including Ultrix, DG/UX, AIX, and Solaris
-Reduced the number of #define's, centeralized #define's
-Remove duplicate OIDS in system tables(Dan)
-Remove duplicate system catalog info or report mismatches(Dan)
-Removed many os-specific #define's
-Restructured object file generation/location(Bryan, Marc)
-Restructured port-specific file locations(Bryan, Marc)
-Unused/uninialized variables corrected
- _________________________________________________________________
-
- Release 1.09
-
- Release date: 1996-11-04
-
- Sorry, we didn't keep track of changes from 1.02 to 1.09. Some of the
- changes listed in 6.0 were actually included in the 1.02.1 to 1.09
- releases.
- _________________________________________________________________
-
- Release 1.02
-
- Release date: 1996-08-01
- _________________________________________________________________
-
- Migration from version 1.02 to version 1.02.1
-
- Here is a new migration file for 1.02.1. It includes the 'copy' change
- and a script to convert old ASCII files.
-
- Note: The following notes are for the benefit of users who want to
- migrate databases from Postgres95 1.01 and 1.02 to Postgres95
- 1.02.1.
-
- If you are starting afresh with Postgres95 1.02.1 and do not need
- to migrate old databases, you do not need to read any further.
-
- In order to upgrade older Postgres95 version 1.01 or 1.02 databases to
- version 1.02.1, the following steps are required:
- 1. Start up a new 1.02.1 postmaster
- 2. Add the new built-in functions and operators of 1.02.1 to 1.01 or
- 1.02 databases. This is done by running the new 1.02.1 server
- against your own 1.01 or 1.02 database and applying the queries
- attached at the end of the file. This can be done easily through
- "psql". If your 1.01 or 1.02 database is named testdb and you have
- cut the commands from the end of this file and saved them in
- "addfunc.sql":
- % psql testdb -f addfunc.sql
- Those upgrading 1.02 databases will get a warning when executing
- the last two statements in the file because they are already
- present in 1.02. This is not a cause for concern.
- _________________________________________________________________
-
- Dump/Reload Procedure
-
- If you are trying to reload a pg_dump or text-mode, copy tablename to
- stdout generated with a previous version, you will need to run the
- attached "sed" script on the ASCII file before loading it into the
- database. The old format used '.' as end-of-data, while '\.' is now
- the end-of-data marker. Also, empty strings are now loaded in as ''
- rather than NULL. See the copy manual page for full details.
- sed 's/^\.$/\\./g' <in_file >out_file
-
- If you are loading an older binary copy or non-stdout copy, there is
- no end-of-data character, and hence no conversion necessary.
--- following lines added by agc to reflect the case-insensitive
--- regexp searching for varchar (in 1.02), and bpchar (in 1.02.1)
-create operator ~* (leftarg = bpchar, rightarg = text, procedure = texticregexe
-q);
-create operator !~* (leftarg = bpchar, rightarg = text, procedure = texticregex
-ne);
-create operator ~* (leftarg = varchar, rightarg = text, procedure = texticregex
-eq);
-create operator !~* (leftarg = varchar, rightarg = text, procedure = texticrege
-xne);
- _________________________________________________________________
-
- Changes
-
-Source code maintenance and development
- * worldwide team of volunteers
- * the source tree now in CVS at ftp.ki.net
-
-Enhancements
- * psql (and underlying libpq library) now has many more options for
- formatting output, including HTML
- * pg_dump now output the schema and/or the data, with many fixes to
- enhance completeness.
- * psql used in place of monitor in administration shell scripts.
- monitor to be deprecated in next release.
- * date/time functions enhanced
- * NULL insert/update/comparison fixed/enhanced
- * TCL/TK lib and shell fixed to work with both tck7.4/tk4.0 and tcl7.5/tk4.1
-
-Bug Fixes (almost too numerous to mention)
- * indexes
- * storage management
- * check for NULL pointer before dereferencing
- * Makefile fixes
-
-New Ports
- * added SolarisX86 port
- * added BSD/OS 2.1 port
- * added DG/UX port
- _________________________________________________________________
-
- Release 1.01
-
- Release date: 1996-02-23
- _________________________________________________________________
-
- Migration from version 1.0 to version 1.01
-
- The following notes are for the benefit of users who want to migrate
- databases from Postgres95 1.0 to Postgres95 1.01.
-
- If you are starting afresh with Postgres95 1.01 and do not need to
- migrate old databases, you do not need to read any further.
-
- In order to Postgres95 version 1.01 with databases created with
- Postgres95 version 1.0, the following steps are required:
- 1. Set the definition of NAMEDATALEN in "src/Makefile.global" to 16
- and OIDNAMELEN to 20.
- 2. Decide whether you want to use Host based authentication.
- a. If you do, you must create a file name pg_hba in your
- top-level data directory (typically the value of your
- $PGDATA). "src/libpq/pg_hba" shows an example syntax.
- b. If you do not want host-based authentication, you can comment
- out the line
- HBA = 1
- in "src/Makefile.global"
- Note that host-based authentication is turned on by default,
- and if you do not take steps A or B above, the out-of-the-box
- 1.01 will not allow you to connect to 1.0 databases.
- 3. Compile and install 1.01, but DO NOT do the "initdb" step.
- 4. Before doing anything else, terminate your 1.0 postmaster, and
- backup your existing $PGDATA directory.
- 5. Set your PGDATA environment variable to your 1.0 databases, but
- set up path up so that 1.01 binaries are being used.
- 6. Modify the file "$PGDATA/PG_VERSION" from 5.0 to 5.1
- 7. Start up a new 1.01 postmaster
- 8. Add the new built-in functions and operators of 1.01 to 1.0
- databases. This is done by running the new 1.01 server against
- your own 1.0 database and applying the queries attached and saving
- in the file 1.0_to_1.01.sql. This can be done easily through
- "psql". If your 1.0 database is name testdb:
- % psql testdb -f 1.0_to_1.01.sql
- and then execute the following commands (cut and paste from here):
--- add builtin functions that are new to 1.01
-
-create function int4eqoid (int4, oid) returns bool as 'foo'
-language 'internal';
-create function oideqint4 (oid, int4) returns bool as 'foo'
-language 'internal';
-create function char2icregexeq (char2, text) returns bool as 'foo'
-language 'internal';
-create function char2icregexne (char2, text) returns bool as 'foo'
-language 'internal';
-create function char4icregexeq (char4, text) returns bool as 'foo'
-language 'internal';
-create function char4icregexne (char4, text) returns bool as 'foo'
-language 'internal';
-create function char8icregexeq (char8, text) returns bool as 'foo'
-language 'internal';
-create function char8icregexne (char8, text) returns bool as 'foo'
-language 'internal';
-create function char16icregexeq (char16, text) returns bool as 'foo'
-language 'internal';
-create function char16icregexne (char16, text) returns bool as 'foo'
-language 'internal';
-create function texticregexeq (text, text) returns bool as 'foo'
-language 'internal';
-create function texticregexne (text, text) returns bool as 'foo'
-language 'internal';
-
--- add builtin functions that are new to 1.01
-
-create operator = (leftarg = int4, rightarg = oid, procedure = int4eqoid);
-create operator = (leftarg = oid, rightarg = int4, procedure = oideqint4);
-create operator ~* (leftarg = char2, rightarg = text, procedure = char2icregexe
-q);
-create operator !~* (leftarg = char2, rightarg = text, procedure = char2icregex
-ne);
-create operator ~* (leftarg = char4, rightarg = text, procedure = char4icregexe
-q);
-create operator !~* (leftarg = char4, rightarg = text, procedure = char4icregex
-ne);
-create operator ~* (leftarg = char8, rightarg = text, procedure = char8icregexe
-q);
-create operator !~* (leftarg = char8, rightarg = text, procedure = char8icregex
-ne);
-create operator ~* (leftarg = char16, rightarg = text, procedure = char16icrege
-xeq);
-create operator !~* (leftarg = char16, rightarg = text, procedure = char16icreg
-exne);
-create operator ~* (leftarg = text, rightarg = text, procedure = texticregexeq)
-;
-create operator !~* (leftarg = text, rightarg = text, procedure = texticregexne
-);
- _________________________________________________________________
-
- Changes
-
-Incompatibilities:
- * 1.01 is backwards compatible with 1.0 database provided the user
- follow the steps outlined in the MIGRATION_from_1.0_to_1.01 file.
- If those steps are not taken, 1.01 is not compatible with 1.0 database.
-
-Enhancements:
- * added PQdisplayTuples() to libpq and changed monitor and psql to use it
- * added NeXT port (requires SysVIPC implementation)
- * added CAST .. AS ... syntax
- * added ASC and DESC keywords
- * added 'internal' as a possible language for CREATE FUNCTION
- internal functions are C functions which have been statically linked
- into the postgres backend.
- * a new type "name" has been added for system identifiers (table names,
- attribute names, etc.) This replaces the old char16 type. The
- of name is set by the NAMEDATALEN #define in src/Makefile.global
- * a readable reference manual that describes the query language.
- * added host-based access control. A configuration file ($PGDATA/pg_hba)
- is used to hold the configuration data. If host-based access control
- is not desired, comment out HBA=1 in src/Makefile.global.
- * changed regex handling to be uniform use of Henry Spencer's regex code
- regardless of platform. The regex code is included in the distribution
- * added functions and operators for case-insensitive regular expressions.
- The operators are ~* and !~*.
- * pg_dump uses COPY instead of SELECT loop for better performance
-
-Bug fixes:
- * fixed an optimizer bug that was causing core dumps when
- functions calls were used in comparisons in the WHERE clause
- * changed all uses of getuid to geteuid so that effective uids are used
- * psql now returns non-zero status on errors when using -c
- * applied public patches 1-14
- _________________________________________________________________
-
- Release 1.0
-
- Release date: 1995-09-05
- _________________________________________________________________
-
- Changes
-
-Copyright change:
- * The copyright of Postgres 1.0 has been loosened to be freely modifiable
- and modifiable for any purpose. Please read the COPYRIGHT file.
- Thanks to Professor Michael Stonebraker for making this possible.
-
-Incompatibilities:
- * date formats have to be MM-DD-YYYY (or DD-MM-YYYY if you're using
- EUROPEAN STYLE). This follows SQL-92 specs.
- * "delimiters" is now a keyword
-
-Enhancements:
- * sql LIKE syntax has been added
- * copy command now takes an optional USING DELIMITER specification.
- delimiters can be any single-character string.
- * IRIX 5.3 port has been added.
- Thanks to Paul Walmsley and others.
- * updated pg_dump to work with new libpq
- * \d has been added psql
- Thanks to Keith Parks
- * regexp performance for architectures that use POSIX regex has been
- improved due to caching of precompiled patterns.
- Thanks to Alistair Crooks
- * a new version of libpq++
- Thanks to William Wanders
-
-Bug fixes:
- * arbitrary userids can be specified in the createuser script
- * \c to connect to other databases in psql now works.
- * bad pg_proc entry for float4inc() is fixed
- * users with usecreatedb field set can now create databases without
- having to be usesuper
- * remove access control entries when the entry no longer has any
- permissions
- * fixed non-portable datetimes implementation
- * added kerberos flags to the src/backend/Makefile
- * libpq now works with kerberos
- * typographic errors in the user manual have been corrected.
- * btrees with multiple index never worked, now we tell you they don't
- work when you try to use them
- _________________________________________________________________
-
- Postgres95 Release 0.03
-
- Release date: 1995-07-21
- _________________________________________________________________
-
- Changes
-
-Incompatible changes:
- * BETA-0.3 IS INCOMPATIBLE WITH DATABASES CREATED WITH PREVIOUS VERSIONS
- (due to system catalog changes and indexing structure changes).
- * double-quote (") is deprecated as a quoting character for string literals;
- you need to convert them to single quotes (').
- * name of aggregates (eg. int4sum) are renamed in accordance with the
- SQL standard (eg. sum).
- * CHANGE ACL syntax is replaced by GRANT/REVOKE syntax.
- * float literals (eg. 3.14) are now of type float4 (instead of float8 in
- previous releases); you might have to do typecasting if you depend on it
- being of type float8. If you neglect to do the typecasting and you assign
- a float literal to a field of type float8, you may get incorrect values
- stored!
- * LIBPQ has been totally revamped so that frontend applications
- can connect to multiple backends
- * the usesysid field in pg_user has been changed from int2 to int4 to
- allow wider range of Unix user ids.
- * the netbsd/freebsd/bsd o/s ports have been consolidated into a
- single BSD44_derived port. (thanks to Alistair Crooks)
-
-SQL standard-compliance (the following details changes that makes postgres95
-more compliant to the SQL-92 standard):
- * the following SQL types are now built-in: smallint, int(eger), float, real,
- char(N), varchar(N), date and time.
-
- The following are aliases to existing postgres types:
- smallint -> int2
- integer, int -> int4
- float, real -> float4
- char(N) and varchar(N) are implemented as truncated text types. In
- addition, char(N) does blank-padding.
- * single-quote (') is used for quoting string literals; '' (in addition to
- \') is supported as means of inserting a single quote in a string
- * SQL standard aggregate names (MAX, MIN, AVG, SUM, COUNT) are used
- (Also, aggregates can now be overloaded, i.e. you can define your
- own MAX aggregate to take in a user-defined type.)
- * CHANGE ACL removed. GRANT/REVOKE syntax added.
- - Privileges can be given to a group using the "GROUP" keyword.
- For example:
- GRANT SELECT ON foobar TO GROUP my_group;
- The keyword 'PUBLIC' is also supported to mean all users.
-
- Privileges can only be granted or revoked to one user or group
- at a time.
-
- "WITH GRANT OPTION" is not supported. Only class owners can change
- access control
- - The default access control is to to grant users readonly access.
- You must explicitly grant insert/update access to users. To change
- this, modify the line in
- src/backend/utils/acl.h
- that defines ACL_WORLD_DEFAULT
-
-Bug fixes:
- * the bug where aggregates of empty tables were not run has been fixed. Now,
- aggregates run on empty tables will return the initial conditions of the
- aggregates. Thus, COUNT of an empty table will now properly return 0.
- MAX/MIN of an empty table will return a tuple of value NULL.
- * allow the use of \; inside the monitor
- * the LISTEN/NOTIFY asynchronous notification mechanism now work
- * NOTIFY in rule action bodies now work
- * hash indexes work, and access methods in general should perform better.
- creation of large btree indexes should be much faster. (thanks to Paul
- Aoki)
-
-Other changes and enhancements:
- * addition of an EXPLAIN statement used for explaining the query execution
- plan (eg. "EXPLAIN SELECT * FROM EMP" prints out the execution plan for
- the query).
- * WARN and NOTICE messages no longer have timestamps on them. To turn on
- timestamps of error messages, uncomment the line in
- src/backend/utils/elog.h:
- /* define ELOG_TIMESTAMPS */
- * On an access control violation, the message
- "Either no such class or insufficient privilege"
- will be given. This is the same message that is returned when
- a class is not found. This dissuades non-privileged users from
- guessing the existence of privileged classes.
- * some additional system catalog changes have been made that are not
- visible to the user.
-
-libpgtcl changes:
- * The -oid option has been added to the "pg_result" tcl command.
- pg_result -oid returns oid of the last tuple inserted. If the
- last command was not an INSERT, then pg_result -oid returns "".
- * the large object interface is available as pg_lo* tcl commands:
- pg_lo_open, pg_lo_close, pg_lo_creat, etc.
-
-Portability enhancements and New Ports:
- * flex/lex problems have been cleared up. Now, you should be able to use
- flex instead of lex on any platforms. We no longer make assumptions of
- what lexer you use based on the platform you use.
- * The Linux-ELF port is now supported. Various configuration have been
- tested: The following configuration is known to work:
- kernel 1.2.10, gcc 2.6.3, libc 4.7.2, flex 2.5.2, bison 1.24
- with everything in ELF format,
-
-New utilities:
- * ipcclean added to the distribution
- ipcclean usually does not need to be run, but if your backend crashes
- and leaves shared memory segments hanging around, ipcclean will
- clean them up for you.
-
-New documentation:
- * the user manual has been revised and libpq documentation added.
- _________________________________________________________________
-
- Postgres95 Release 0.02
-
- Release date: 1995-05-25
- _________________________________________________________________
-
- Changes
-
-Incompatible changes:
- * The SQL statement for creating a database is 'CREATE DATABASE' instead
- of 'CREATEDB'. Similarly, dropping a database is 'DROP DATABASE' instead
- of 'DESTROYDB'. However, the names of the executables 'createdb' and
- 'destroydb' remain the same.
-
-New tools:
- * pgperl - a Perl (4.036) interface to Postgres95
- * pg_dump - a utility for dumping out a postgres database into a
- script file containing query commands. The script files are in a ASCII
- format and can be used to reconstruct the database, even on other
- machines and other architectures. (Also good for converting
- a Postgres 4.2 database to Postgres95 database.)
-
-The following ports have been incorporated into postgres95-beta-0.02:
- * the NetBSD port by Alistair Crooks
- * the AIX port by Mike Tung
- * the Windows NT port by Jon Forrest (more stuff but not done yet)
- * the Linux ELF port by Brian Gallew
-
-The following bugs have been fixed in postgres95-beta-0.02:
- * new lines not escaped in COPY OUT and problem with COPY OUT when first
- attribute is a '.'
- * cannot type return to use the default user id in createuser
- * SELECT DISTINCT on big tables crashes
- * Linux installation problems
- * monitor doesn't allow use of 'localhost' as PGHOST
- * psql core dumps when doing \c or \l
- * the "pgtclsh" target missing from src/bin/pgtclsh/Makefile
- * libpgtcl has a hard-wired default port number
- * SELECT DISTINCT INTO TABLE hangs
- * CREATE TYPE doesn't accept 'variable' as the internallength
- * wrong result using more than 1 aggregate in a SELECT
- _________________________________________________________________
-
- Postgres95 Release 0.01
-
- Release date: 1995-05-01
-
- Initial release.
+Distribution file sets include release notes for their version and preceding
+versions. Visit the file doc/src/sgml/html/release.html in an HTML browser.
projects / postgresql / blobdiff