TODO list for PostgreSQL
========================
-Last updated: Tue Oct 5 17:11:29 EDT 1999
+Last updated: Wed Oct 6 09:35:16 EDT 1999
Current maintainer: Bruce Momjian (maillist@candle.pha.pa.us)
* Elog() does not free all its memory(Jan)
* spinlock stuck problem when elog(FATAL) and elog(ERROR) inside bufmgr
-* Recover or force failure when disk space is exhausted
+* -Recover or force failure when disk space is exhausted(Hiroshi)
PARSER
* SELECT pg_class FROM pg_class generates strange error
* Alter TABLE ADD COLUMN does not honor DEFAULT, add CONSTRAINT
* Do not allow bpchar column creation without length
-* -Select a[1] FROM test fails, it needs test.a[1]
-* -Array index references without table name cause problems [array]
+* -Select a[1] FROM test fails, it needs test.a[1](Tom)
+* -Array index references without table name cause problems [array](Tom)
* Update table SET table.value = 3 fails(SQL standard says this is OK)
* Creating index of TIMESTAMP & RELTIME fails, or rename to DATETIME(Thomas)
* SELECT foo UNION SELECT foo is incorrectly simplified to SELECT foo
-* -INSERT ... SELECT ... GROUP BY groups by target columns not source columns
-* -CREATE TABLE test (a char(5) DEFAULT text '', b int4) fails on INSERT
+* -INSERT ... SELECT ... GROUP BY groups by target columns not source columns(Tom)
+* -CREATE TABLE test (a char(5) DEFAULT text '', b int4) fails on INSERT(Tom)
* UNION with LIMIT fails
* Unique index on base column not honored on inserts from inherited table
INSERT INTO inherit_table (unique_index_col) VALUES (dup) should fail
* prevent primary key of nine columns [primary]
* SELECT COUNT('asdf') FROM pg_class WHERE oid=12 crashes
* SELECT DISTINCT ON col1 col1 col2 FROM tab1 is broken [distinct]
-* -When using aggregates + GROUP BY, no rows in should yield no rows out
+* -When using aggregates + GROUP BY, no rows in should yield no rows out(Tom)
VIEWS
* Add OUTER joins, left and right[outer](Thomas, Bruce)
* Allow long tuples by chaining or auto-storing outside db (chaining,large objs)
* Eliminate limits on query length
-* Fix memory leak for expressions?[memory](Tom?)
-* -Fix memory leak for aggregates?
+* Fix memory leak for expressions[memory](Tom?)
+* -Fix memory leak for aggregates(Tom)
ADMIN
* Remove Money type, add money formatting for decimal type
* Declare typein/out functions in pg_proc with a special "C string" data type
* Add non-large-object binary field
-* -Add index on NUMERIC/DECIMAL type
+* -Add index on NUMERIC/DECIMAL type(Jan)
* Make Absolutetime/Relativetime int4 because time_t can be int8 on some ports
* Functions returning sets don't really work right[function]
* Allow CREATE INDEX zman_index ON test (date_trunc( 'day', zman ) datetime_ops)
fails index can't store constant parameters
* Allow creation of functional indexes to use default types
-* Permissions on indexes - prevent them?
+* Permissions on indexes, prevent them?
* Allow SQL function indexes
* Add FILLFACTOR to index creation
* Allow indexing of LIKE with localle character sets
* Allow ESCAPE '\' at the end of LIKE for ANSI compliance [like]
* Rewrite the LIKE handling by rewriting the user string with the
supplied ESCAPE [like]
-* -Move LIKE index optimization handling to the optimizer
+* -Move LIKE index optimization handling to the optimizer(Tom)
* Allow RULE recompilation
* Support UNION/INTERSECT/EXCEPT in sub-selects
* Allow DELETE and UPDATE to use inheritance using tablename*
* Create a background process for each database that runs while
database is idle, finding superceeded rows, gathering stats and vacuuming
* Add UNIQUE capability to non-btree indexes
-* -Certain indexes will not shrink, i.e. oid indexes with many inserts
+* -Certain indexes will not shrink, i.e. oid indexes with many inserts(Vadim)
* Restore unused oid's on backend exit if no one else has gotten oids
* Have UPDATE/DELETE clean out indexes
* Allow WHERE restriction on ctid
* Allow cursors to be DECLAREd/OPENed/CLOSEed outside transactions
* Allow PQrequestCancel() to terminate when in waiting-for-lock state
* -Transaction log, so re-do log can be on a separate disk by
- with after-row images(Vadim) [logging]
+ with after-row images(Vadim) [logging](Vadim)
* Populate backend status area and write program to dump status data
* Make oid use unsigned int more reliably, pg_atoi()
* Allow subqueries in target list
FSYNC
-* -Allow transaction commits with rollback with no-fsync performance [fsync]
-* -Prevent fsync in SELECT-only queries
+* -Allow transaction commits with rollback with no-fsync performance [fsync](Vadim)
+* -Prevent fsync in SELECT-only queries(Vadim)
INDEXES
* Pull requested data directly from indexes, bypassing heap data
* Use index to restrict rows returned by multi-key index when used with
non-consecutive keys or OR clauses, so fewer heap accesses
-* -Convert function(constant) into a constant for index use
+* -Convert function(constant) into a constant for index use(Tom)
* Allow LIMIT ability on single-table queries that have no ORDER BY to use
a matching index [limit]
* Improve LIMIT processing by using index to limit rows processed [limit]
* Improve _bt_binsrch() to handle equal keys better, remove _bt_firsteq()(Tom)
* Allow SELECT * FROM tab WHERE int2col = 4 use int2col index, int8,
float4, numeric/decimal too [optimizer]
-* -Allow optimizer to prefer plans that match ORDER BY
+* -Allow optimizer to prefer plans that match ORDER BY(Tom)
CACHE
* Allow compression of log and meta data
* Allow char() not to use variable-sized header to reduce disk size
* Do async I/O to do better read-ahead of data
-* -Fix memory exhaustion when using many OR's [cnfify]
+* -Fix memory exhaustion when using many OR's [cnfify](Tom)
* Get faster regex() code from Henry Spencer <henry@zoo.utoronto.ca>
when it is available
* Use mmap() rather than SYSV shared memory(?)
-* -Process const = const parts of OR clause in separate pass
+* -Process const = const parts of OR clause in separate pass(Tom)
* Make oid use oidin/oidout not int4in/int4out in pg_type.h
* Improve Subplan list handling
* Allow Subplans to use efficient joins(hash, merge) with upper variable
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