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