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Update TODO list.
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TODO list for PostgreSQL
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========================
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Last updated: Mon Jan 10 08:19:08 EST 2000
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Last updated: Tue Jan 11 07:07:31 EST 2000
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Current maintainer: Bruce Momjian (pgman@candle.pha.pa.us)
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@ -18,8 +18,8 @@ RELIABILITY
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RESOURCES
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* Elog() does not free all its memory(Jan)
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* spinlock stuck problem when elog(FATAL) and elog(ERROR) inside bufmgr
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* -Elog() does not free all its memory
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* -spinlock stuck problem when elog(FATAL) and elog(ERROR) inside bufmgr
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* -Recover or force failure when disk space is exhausted(Hiroshi)
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PARSER
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@ -33,7 +33,7 @@ PARSER
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* -Array index references without table name cause problems [array](Tom)
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* Update table SET table.value = 3 fails(SQL standard says this is OK)
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* Creating index of TIMESTAMP & RELTIME fails, or rename to DATETIME(Thomas)
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* SELECT foo UNION SELECT foo is incorrectly simplified to SELECT foo
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* -SELECT foo UNION SELECT foo is incorrectly simplified to SELECT foo
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* -INSERT ... SELECT ... GROUP BY groups by target columns not source columns(Tom)
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* -CREATE TABLE test (a char(5) DEFAULT text '', b int4) fails on INSERT(Tom)
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* -UNION with LIMIT fails
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@ -49,13 +49,13 @@ PARSER
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* redesign INSERT ... SELECT to have two levels of target list
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* -select * from pg_class where oid in (0,-1)
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* have INTERSECT/EXCEPT prevent duplicates unless ALL is specified
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* prevent primary key of nine columns [primary]
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* prevent primary key that exceeds max index columns [primary]
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* -SELECT COUNT('asdf') FROM pg_class WHERE oid=12 crashes
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* SELECT DISTINCT ON col1 col1 col2 FROM tab1 is broken [distinct]
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* -require SELECT DISTINCT target list to have all ORDER BY columns
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* -When using aggregates + GROUP BY, no rows in should yield no rows out(Tom)
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* -Allow HAVING to use comparisons that have no aggregates(Tom)
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* Allow COUNT(DISTINCT col)
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* -Allow COUNT(DISTINCT col))(TOm)
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VIEWS
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@ -68,9 +68,9 @@ MISC
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* User who can create databases can modify pg_database table
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* Plpgsql does not handle quoted mixed-case identifiers
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* Fix btree to give a useful elog when key > 1/2 (page - overhead)
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* -Fix btree to give a useful elog when key > 1/2 (page - overhead)(Tom)
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* -pg_dump should preserve primary key information
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* plpgsql regression tests fail on BSD/OS
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* plpgsql regression tests fails on BSD/OS
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* -database names with spaces fail
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* insert of 0.0 into DECIMAL(4,4) field fails
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@ -79,9 +79,9 @@ ENHANCEMENTS
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URGENT
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* Add referential integrity(Jan?)[primary]
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* -Add referential integrity(Jan)[primary]
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* Add OUTER joins, left and right[outer](Thomas, Bruce)
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* Allow long tuples by chaining or auto-storing outside db (chaining,large objs)
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* Allow long tuples by chaining or auto-storing outside db (TOAST)(Jan)
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* -Eliminate limits on query length
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* Fix memory leak for expressions[memory](Tom?)
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* -Fix memory leak for aggregates(Tom)
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@ -93,19 +93,19 @@ ADMIN
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* Test syslog functionality
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* Allow elog() to return error codes, not just messages
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* Allow international error message support and add error codes
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* Generate postmaster pid file and remove flock/fcntl lock code [flock]
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* -Generate postmaster pid file and remove flock/fcntl lock code[flock](Tatsuo)
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* Add ability to specifiy location of lock/socket files [flock]
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TYPES
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* Add BIT, BIT VARYING
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* -Add BIT, BIT VARYING
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* Nchar (as distinguished from ordinary varchar),
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* Domain capability
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* Add STDDEV/VARIANCE() function for standard deviation computation/variance
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* -Allow compression of large fields or a compressed field type
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* Large objects
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o Fix large object mapping scheme, own typeid or reltype(Peter)
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o Allow large text type to use large objects(Peter)
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o -Allow large text type to use large objects(Peter)
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o Not to stuff everything as files in a single directory, hash dirs
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o Allow large object vacuuming
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o Tables that start with xinv confused to be large objects
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@ -117,7 +117,7 @@ TYPES
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* Allow user to define char1 column
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* Add support for & operator
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* Allow LOCALE on a per-column basis, default to ASCII
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* Allow LOCALE to use indexes in regular expression searches
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* -Allow LOCALE to use indexes in regular expression searches(Tom)
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* Allow array on int8[]
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* Allow nulls in arrays
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* Allow arrays to be ORDER'ed
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@ -143,8 +143,8 @@ INDEXES
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* Permissions on indexes, prevent them?
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* Allow SQL function indexes
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* Add FILLFACTOR to index creation
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* Allow indexing of LIKE with localle character sets
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* Allow indexing of more than eight columns
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* -Allow indexing of LIKE with localle character sets
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* -Allow indexing of more than eight columns
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COMMANDS
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@ -196,15 +196,15 @@ MISC
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* Allow cursors to be DECLAREd/OPENed/CLOSEed outside transactions
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* Allow DELETE WHERE CURRENT OF cursor
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* Allow PQrequestCancel() to terminate when in waiting-for-lock state
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* -Transaction log, so re-do log can be on a separate disk by
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with after-row images(Vadim) [logging](Vadim)
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* Transaction log, so re-do log can be on a separate disk by
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with after-row images(Vadim) [logging](Vadim)(in-progress)
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* Populate backend status area and write program to dump status data
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* Make oid use unsigned int more reliably, pg_atoi()
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* -Allow subqueries in target list
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* -Allow subqueries in target list(Tom)
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* Put sort files, large objects in their own directory
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* Do autocommit so always in a transaction block(?)
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* Show location of syntax error in query [yacc]
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* Redesign the function call interface to handle NULLs better [function]
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* Redesign the function call interface to handle NULLs better[function](TOm)
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* -Document/trigger/rule so changes to pg_shadow recreate pg_pwd [pg_shadow]
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* Missing optimizer selectivities for date, r-tree, etc. [optimizer]
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* -Overhaul mdmgr/smgr to fix double unlinking and double opens, cleanup
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@ -237,9 +237,10 @@ INDEXES
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* Have optimizer take LIMIT into account when considering index scans [limit]
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* -Make index creation use psort code, because it is now faster(Vadim)
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* -Allow creation of sort temp tables > 1 Gig
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* Create more system table indexes for faster cache lookups
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* fix indexscan() so it does leak memory by not requiring caller to free
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* Improve _bt_binsrch() to handle equal keys better, remove _bt_firsteq()(Tom)
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* -Create more system table indexes for faster cache lookups
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* -fix indexscan() so it does leak memory by not requiring caller to
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free(Tom)
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* -Improve _bt_binsrch() to handle equal keys better, remove _bt_firsteq()(Tom)
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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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* -Allow optimizer to prefer plans that match ORDER BY(Tom)
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@ -271,12 +272,12 @@ MISC
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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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* fix memory leak in cache code when non-existant table is referenced
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* In WHERE tab1.x=3 AND tab1.x=tab2.y, add tab2.y=3
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* -fix memory leak in cache code when non-existant table is referenced
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In WHERE tab1.x=3 AND tab1.x=tab2.y, add tab2.y=3
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* pass atttypmod through parser in more cases [atttypmod]
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* remove duplicate type in/out functions for disk and net
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* -remove duplicate type in/out functions for disk and net
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* Allow persistent backends [persistent]
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* Misc [performance]
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* others [performance]
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SOURCE CODE
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-----------
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