+<!--
+$Header: /cvsroot/pgsql/doc/src/sgml/release.sgml,v 1.41 2000/03/31 03:27:41 thomas Exp $
+-->
+
<chapter id="release">
<title>Release Notes</title>
+ <sect1>
+ <title>Release 7.0</title>
+ <!--
+ <docinfo>
+ <authorgroup>
+ <author>
+ <firstname>Bruce</firstname>
+ <surname>Momjian</surname>
+ </author>
+ </authorgroup>
+ <date>2000-04-01</date>
+ </docinfo>
+ -->
+ <para>
+ This release shows the continued growth of PostgreSQL. There are more
+ changes in 7.0 than in any previous release. Don't be concerned this is
+ a dot-zero release. We do our best to put out only solid releases, and
+ this one is no exception.
+ </para>
+
+ <para>
+ Major changes in this release:
+
+ <variablelist>
+ <varlistentry>
+ <term>
+ Foreign Keys
+ </term>
+ <listitem>
+ <para>
+ 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.
+ </para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term>
+ Optimizer Overhaul
+ </term>
+ <listitem>
+ <para>
+ Continuing on work started a year ago, the optimizer has been
+ overhauled, allowing improved query execution and better performance
+ with less memory usage.
+ </para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term>
+ Updated psql
+ </term>
+ <listitem>
+ <para>
+ <application>psql</application>, our interactive terminal monitor, has been
+ updated with a variety of new features. See the psql manual page for details.
+ </para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term>
+ Join Syntax
+ </term>
+ <listitem>
+ <para>
+ SQL92 join syntax is now supported, though only as INNER JOINs
+ for this release. JOIN, NATURAL JOIN, JOIN/USING, JOIN/ON are
+ available, as are column correlation names.
+ </para>
+ </listitem>
+ </varlistentry>
+
+
+ <varlistentry>
+ <term>
+ Upcoming Features
+ </term>
+ <listitem>
+ <para>
+ In 7.1, we plan to have outer joins, storage for very long rows, and a
+ write-ahead logging system.
+ </para>
+ </listitem>
+ </varlistentry>
+ </variablelist>
+ </para>
+
+ <sect2>
+ <title>Migration to v7.0</title>
+
+ <para>
+ A dump/restore using <application>pg_dump</application>
+ is required for those wishing to migrate data from any
+ previous release of <productname>Postgres</productname>.
+ For those upgrading from 6.5.*, you can use
+ <application>pg_upgrade</application> to upgrade to this
+ release.
+ </para>
+ </sect2>
+
+ <sect2>
+ <title>Detailed Change List</title>
+ <para>
+ <programlisting>
+Bug Fixes
+---------
+Prevent function calls with more than 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 communication of system table changes to other running backends (Tom)
+Improve communication of user table modifications to other running backends (Tom)
+Fix handling of temp tables in complex situations (Bruce, Tom)
+Allow table locking when tables opened, improving concurrent reliability (Tom)
+Properly quote sequence names in pg_dump (Ross J. Reedstrom)
+Prevent DESTROY 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
+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
+
+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 (<ulink url="mailto:jens@jens.de">Jens Glaser</ulink>)
+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 is returned to variable with no NULL
+indicator (Christof)
+Allow ^C to cancel COPY command (Massimo)
+Add SET FSYNC and SHOW PG_OPTIONS commands(Massimo)
+Improve CREATE FUNCTION to allow type conversion (Bernie 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)
+Add DEC and SESSION_USER as reserved words (Thomas)
+Require SELECT DISTINCT target list to have all ORDER BY columns (Tom)
+Add Oracle's COMMENT ON command (<ulink url="mailto:mascarim@yahoo">Mike Mascari</ulink>)
+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 so only Postgres superuser or table owner can
+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 startup (Tatsuo)
+Add postmaster.opts.default file to store startup 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 special case of POSIX time zone: "GMT+8" and "GMT-8" (Thomas)
+Add DEC as synonym for "DECIMAL (Thomas)
+Add SESSION_USER as SQL92 keyword, same as CURRENT_USER (Thomas)
+Implement column aliases (aka correlation names) and join syntax (Thomas)
+Allow queries like SELECT a FROM t1 tx (a) (Thomas)
+Allow queries like SELECT * FROM t1 NATURAL JOIN t2 (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)
+
+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)
+Fix for 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)
+New C-routines to implement a BIT and BIT VARYING type in /contrib
+ (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 ]
+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)
+Add round(), sqrt(), cbrt(), pow()
+Rename NUMERIC power() to pow()
+Improved TRANSLATE() function
+Allow X=-Y operators (Tom)
+Add exp() and ln() as NUMERIC types
+Allow SELECT float8(COUNT(*)) / (SELECT COUNT(*) FROM int4_tbl) FROM int4_tbl
+ GROUP BY f1; (Tom)
+
+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 multi-byte 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)
+Allow more than first column 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)
+
+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 <ulink url="mailto:gatgul@voicenet.com">Uncle George</ulink>
+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 BSDI
+Add SQL_ASCII test case to the regression test (Tatsuo)
+configure --with-mb now deprecated (Tatsuo)
+NT fixes
+NetBSD fixes <ulink url="mailto:lamj@stat.cmu.edu">Johnny C. Lam</ulink>
+Fixes for Alpha compiles
+New multibyte encodings
+ </programlisting>
+ </para>
+ </sect2>
+ </sect1>
+
+<sect1>
+<title>Release 6.5.3</title>
+<!--
+<docinfo>
+<authorgroup>
+<author>
+<firstname>Bruce</firstname>
+<surname>Momjian</surname>
+</author>
+</authorgroup>
+<date>1999-10-13</date>
+</docinfo>
+-->
+
+<para>
+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.
+</para>
+
+
+<sect2>
+<title>Migration to v6.5.3</title>
+
+<para>
+A dump/restore is <emphasis>not</emphasis> required for those running
+6.5.*.
+</para>
+</sect2>
+<sect2>
+<title>Detailed Change List</title>
+
+<para>
+<programlisting>
+Updated version of pgaccess 0.98
+NT-specific patch
+Fix dumping rules on inherited tables
+</programlisting>
+</para>
+</sect2>
+</sect1>
+
+
+<sect1>
+<title>Release 6.5.2</title>
+<!--
+<docinfo>
+<authorgroup>
+<author>
+<firstname>Bruce</firstname>
+<surname>Momjian</surname>
+</author>
+</authorgroup>
+<date>1999-09-15</date>
+</docinfo>
+-->
+
+<para>
+This is basically a cleanup release for 6.5.1. We have fixed a variety of
+problems reported by 6.5.1 users.
+</para>
+
+
+<sect2>
+<title>Migration to v6.5.2</title>
+
+<para>
+A dump/restore is <emphasis>not</emphasis> required for those running
+6.5.*.
+</para>
+</sect2>
+<sect2>
+<title>Detailed Change List</title>
+
+<para>
+<programlisting>
+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 indices(Thomas)
+Improve it so that it checks for multi-column 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(Tom)
+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
+</programlisting>
+</para>
+</sect2>
+</sect1>
+
+
<sect1>
<title>Release 6.5.1</title>
<!--
<para>
<programlisting>
-Add NT README file.
+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 multi-segment tables(Hiroshi)
-R=Tree optimizer selectivity fix(Tom)
+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)
plpgsql fixes
Allow port numbers 32k - 64k(Bruce)
Add ^ precidence(Bruce)
-Rename sort files called pg_temp to pg_sorttemp
+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)
</programlisting>
</para>
</sect2>
</sect1>
- <sect1>
- <title>Release 6.5</title>
+<sect1>
+<title>Release 6.5</title>
<!--
<docinfo>
<authorgroup>
<surname>Momjian</surname>
</author>
</authorgroup>
-<date>1998-06-09</date>
+<date>1999-06-09</date>
</docinfo>
-->
Memory overrun cleanups(Tatsuo)
Fix for lo_import crash(Tatsuo)
Adjust handling of data type names to suppress double quotes(Thomas)
-Use type coersion for matching columns and DEFAULT(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 aggregate memory leaks(Erik Riedel)
Allow username containing a dash GRANT permissions
Cleanup of NULL in inet types
-Clean up system table bugs(Tom)
+Clean up system table bugs(Tom)
Fix problems of PAGER and \? command(Masaaki Sakaida)
Reduce default multi-segment file size limit to 1GB(Peter)
Fix for dumping of CREATE OPERATOR(Tom)
Implement CASE, COALESCE, NULLIF expression(Thomas)
New pg_dump table output format(Constantin)
Add string min()/max() functions(Thomas)
-Extend new type coersion techniques to aggregates(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)
Better search for install program(Tom)
Timezone fixes(Tom)
HPUX fixes(Tom)
-Use implicit type coersion for matching DEFAULT values(Thomas)
+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)
<listitem>
<para>
-The parser will now perform automatic type coersion to match arguments
+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 <productname>Postgres</productname>.
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 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)
<!-- Keep this comment at the end of the file
Local variables:
-mode: sgml
+mode:sgml
sgml-omittag:nil
sgml-shorttag:t
sgml-minimize-attributes:nil
sgml-parent-document:nil
sgml-default-dtd-file:"./reference.ced"
sgml-exposed-tags:nil
-sgml-local-catalogs:"/usr/lib/sgml/catalog"
+sgml-local-catalogs:("/usr/lib/sgml/catalog")
sgml-local-ecat-files:nil
End:
-->
projects / postgresql / blobdiff