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Update TODO list.

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Bruce Momjian 2001-01-04 08:24:59 +00:00
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@ -1,6 +1,6 @@
TODO list for PostgreSQL TODO list for PostgreSQL
======================== ========================
Last updated: Thu Jan 4 03:15:12 EST 2001 Last updated: Thu Jan 4 03:24:53 EST 2001
Current maintainer: Bruce Momjian (pgman@candle.pha.pa.us) Current maintainer: Bruce Momjian (pgman@candle.pha.pa.us)
@ -27,26 +27,26 @@ PARSER
[inherit] [inherit]
* -Be smarter about promoting types when UNION merges different data types * -Be smarter about promoting types when UNION merges different data types
* -redesign INSERT ... SELECT to have two levels of target list * -redesign INSERT ... SELECT to have two levels of target list
* have INTERSECT/EXCEPT prevent duplicates unless ALL is specified * -have INTERSECT/EXCEPT prevent duplicates unless ALL is specified (Tom)
* SELECT col::DECIMAL(12,10); fails * -SELECT col::DECIMAL(12,10); fails
VIEWS VIEWS
* -Views containing aggregates sometimes fail (Jan) * -Views containing aggregates sometimes fail (Jan)
* Creating view and inheriting the view causes view* to show * -Creating view and inheriting the view causes view* to show
duplicates (inherit) duplicates (inherit)
* -Disallow LOCK on view (Mark Hollomon) * -Disallow LOCK on view (Mark Hollomon)
MISC MISC
* Plpgsql does not handle quoted mixed-case identifiers * Plpgsql does not handle quoted mixed-case identifiers
* Buffer reference counting bugfixes * -Buffer reference counting bugfixes (Tom)
* Fix libpq bug that causes it to drop backend error message sent * -Fix libpq bug that causes it to drop backend error message sent
just before connection closure (ie, any FATAL error message) just before connection closure (ie, any FATAL error message)
* -SELECT ... UNION ... ORDER BY fails when sort expr not in result list * -SELECT ... UNION ... ORDER BY fails when sort expr not in result list
* -SELECT ... UNION ... GROUP BY fails if column types disagree, no type * -SELECT ... UNION ... GROUP BY fails if column types disagree, no type
promotion occurs promotion occurs
* Modification of pg_class can happen while table in use by * -Modification of pg_class can happen while table in use by
another backend. Might lead to MVCC inside of syscache another backend. Might lead to MVCC inside of syscache
* Permission to DELETE table allows UPDATE also * Permission to DELETE table allows UPDATE also
@ -57,7 +57,7 @@ URGENT
* -Add OUTER joins, left and right[outer] (Tom, Thomas) * -Add OUTER joins, left and right[outer] (Tom, Thomas)
* -Allow long tuples by chaining or auto-storing outside db (TOAST) (Jan) * -Allow long tuples by chaining or auto-storing outside db (TOAST) (Jan)
* Fix memory leak for expressions[memory] (Tom?) * -Fix memory leak for expressions[memory] (Tom)
* Add replication of distributed databases [replication] * Add replication of distributed databases [replication]
o automatic fallover o automatic fallover
o load balancing o load balancing
@ -117,7 +117,7 @@ TYPES
* Make functions more multi-byte aware, i.e. trim() * Make functions more multi-byte aware, i.e. trim()
* Make n of CHAR(n)/VARCHAR(n) the number of letters, not bytes * Make n of CHAR(n)/VARCHAR(n) the number of letters, not bytes
* -Update macaddr manufacturer numbers, or remove the function macaddr_manuf() * -Update macaddr manufacturer numbers, or remove the function macaddr_manuf()
* Add btree index support for reltime, tinterval, regproc, bit, varbit * Add btree index support for reltime, tinterval, regproc
* Add rtree index support for line, lseg, path, point * Add rtree index support for line, lseg, path, point
* Make binary/file in/out interface for TOAST columns * Make binary/file in/out interface for TOAST columns
* SELECT cash_out(2) crashes because of opaque * SELECT cash_out(2) crashes because of opaque
@ -127,10 +127,9 @@ VIEWS
* -Allow DISTINCT on views * -Allow DISTINCT on views
* -Allow views of aggregate columns * -Allow views of aggregate columns
* -Allow views with subselects * -Allow views with subselects
* Create insert, update and delete rules for simple one table views * Automatically create rules on views so they are updateable, per SQL92
* -Change elog for complex view ins|upd|del to "cannot {ins|upd|del} * -Change elog for complex view ins|upd|del to "cannot {ins|upd|del}
* Add the functionality for "with check option" clause of create view * Add the functionality for "with check option" clause of create view
* Automatically create rules on views so they are updateable, per SQL92
INDEXES INDEXES
@ -168,7 +167,7 @@ COMMANDS
* Allow BINARY option to SELECT, like we do with DECLARE * Allow BINARY option to SELECT, like we do with DECLARE
* MOVE 0 should not move to end of cursor * MOVE 0 should not move to end of cursor
* Overhaul ACL (access control) code * Overhaul ACL (access control) code
* Allow ORDER BY...LIMIT in INSERT INTO ... SELECT * -Allow ORDER BY...LIMIT in INSERT INTO ... SELECT (Tom)
* Add SHOW command to display locks * Add SHOW command to display locks
CLIENTS CLIENTS
@ -193,8 +192,8 @@ REFERENTIAL INTEGRITY
* Check that primary key exists at foreign key definition time * Check that primary key exists at foreign key definition time
* Prevent column dropping if column is used by foreign key * Prevent column dropping if column is used by foreign key
* Propagate column or table renaming to foreign key constraints * Propagate column or table renaming to foreign key constraints
* Emit a warning at foreign key creation time if no UNIQUE index * -Emit a warning at foreign key creation time if no UNIQUE index
exists on referenced primary key attributes exists on referenced primary key attributes (Tom)
* Add deferred trigger queue file (Jan) * Add deferred trigger queue file (Jan)
* Allow oid to act as a foreign key * Allow oid to act as a foreign key
* Implement dirty reads and use them in RI triggers * Implement dirty reads and use them in RI triggers
@ -234,10 +233,10 @@ MISC
* Overhaul bufmgr/lockmgr/transaction manager * Overhaul bufmgr/lockmgr/transaction manager
* -redesign UNION structures to have separarate target lists * -redesign UNION structures to have separarate target lists
* -Allow multi-level query trees for INSERT INTO ... SELECT * -Allow multi-level query trees for INSERT INTO ... SELECT
* Use IPC_EXCL when creating shared memory and semaphores * -Use IPC_EXCL when creating shared memory and semaphores (Tom)
* have pg_upgrade use pg_ctl to stop/start postmaster * have pg_upgrade use pg_ctl to stop/start postmaster
* Encrpyt passwords in pg_shadow table using MD5 (Vince) * Encrpyt passwords in pg_shadow table using MD5 (Vince)
* Use flock() to prevent multiple postmasters on the same port [flock] * -Use flock() to prevent multiple postmasters on the same port (Tom)
* Allow Java server-side programming * Allow Java server-side programming
PERFORMANCE PERFORMANCE
@ -255,9 +254,10 @@ INDEXES
non-consecutive keys or OR clauses, so fewer heap accesses non-consecutive keys or OR clauses, so fewer heap accesses
* Allow SELECT * FROM tab WHERE int2col = 4 use int2col index, int8, * Allow SELECT * FROM tab WHERE int2col = 4 use int2col index, int8,
float4, numeric/decimal too [optimizer] float4, numeric/decimal too [optimizer]
* Include heap CTID in btree index keys, remove equal-key cruft from btree * -Include heap CTID in btree index keys, remove equal-key cruft from
btree (Tom)
* Use indexes with CIDR '<<' (contains) operator * Use indexes with CIDR '<<' (contains) operator
* Fix LIKE indexing optimization for non-ASCII locales * Allow LIKE indexing optimization for non-ASCII locales
CACHE CACHE
@ -267,21 +267,19 @@ CACHE
MISC MISC
* Allow compression of log and meta data * 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 * Do async I/O to do better read-ahead of data
* Get faster regex() code from Henry Spencer <henry@zoo.utoronto.ca> * Get faster regex() code from Henry Spencer <henry@zoo.utoronto.ca>
when it is available when it is available
* Use mmap() rather than SYSV shared memory(?) * Use mmap() rather than SYSV shared memory(?)
* Make oid use oidin/oidout not int4in/int4out in pg_type.h * -Make oid use oidin/oidout not int4in/int4out in pg_type.h (Tom)
* Improve Subplan list handling * Improve Subplan list handling
* Allow Subplans to use efficient joins(hash, merge) with upper variable * Allow Subplans to use efficient joins(hash, merge) with upper variable
[subquery] [subquery]
* -use fmgr_info()/fmgr_faddr() instead of fmgr() calls in high-traffic * -use fmgr_info()/fmgr_faddr() instead of fmgr() calls in high-traffic
places, like GROUP BY, UNIQUE, index processing, etc. places, like GROUP BY, UNIQUE, index processing, etc.
* improve dynamic memory allocation by introducing tuple-context memory * improve dynamic memory allocation by introducing tuple-context memory
allocation [memory] allocation (Tom)
* -In WHERE tab1.x=3 AND tab1.x=tab2.y, add tab2.y=3 * -In WHERE tab1.x=3 AND tab1.x=tab2.y, add tab2.y=3
* prevent labels from being output for stored rules (Tom)
* allow configuration of maximum number of open files * allow configuration of maximum number of open files
* Remove pg_listener index * Remove pg_listener index
* -Redesign ANALYZE in VACUUM so it can be run separately without locks * -Redesign ANALYZE in VACUUM so it can be run separately without locks