@ -1,13 +1,13 @@
TODO list for PostgreSQL TODO list for PostgreSQL
======================== ========================
Last updated: Tue Jan 2 21:23:1 1 EST 2001 Last updated: Wed Jan 3 01:56:4 1 EST 2001
Current maintainer: Bruce Momjian (pgman@candle.pha.pa.us) Current maintainer: Bruce Momjian (pgman@candle.pha.pa.us)
The most recent version of this document can be viewed at The most recent version of this document can be viewed at
the PostgreSQL web site, http://www.PostgreSQL.org. the PostgreSQL web site, http://www.PostgreSQL.org.
A dash(-) marks changes that will appear in the upcoming 7.1 release. A dash (-) marks changes that will appear in the upcoming 7.1 release.
Names in brackets "[]" indicate more detailed information is available in Names in brackets "[]" indicate more detailed information is available in
the directory pgsql/doc/TODO.detail/ under that name. the directory pgsql/doc/TODO.detail/ under that name.
@ -20,7 +20,7 @@ PARSER
* SELECT pg_class FROM pg_class generates strange error * SELECT pg_class FROM pg_class generates strange error
* Alter TABLE ADD COLUMN does not honor DEFAULT, add CONSTRAINT * Alter TABLE ADD COLUMN does not honor DEFAULT, add CONSTRAINT
* -Creating index of TIMESTAMP & RELTIME fails, or rename to DATETIME(Thomas) * -Creating index of TIMESTAMP & RELTIME fails, or rename to DATETIME (Thomas)
* -SELECT foo UNION SELECT foo is incorrectly simplified to SELECT foo * -SELECT foo UNION SELECT foo is incorrectly simplified to SELECT foo
* Unique index on base column not honored on inserts from inherited table * Unique index on base column not honored on inserts from inherited table
INSERT INTO inherit_table (unique_index_col) VALUES (dup) should fail INSERT INTO inherit_table (unique_index_col) VALUES (dup) should fail
@ -32,10 +32,10 @@ PARSER
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
@ -55,9 +55,9 @@ ENHANCEMENTS
URGENT 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
@ -67,11 +67,11 @@ URGENT
o sample implementation in contrib/rserv o sample implementation in contrib/rserv
o queries across databases or servers (two-phase commit) o queries across databases or servers (two-phase commit)
* Point-in-time data recovery using backup and write-ahead log * Point-in-time data recovery using backup and write-ahead log
* Allow row re-use without vacuum(Vadim) * Allow row re-use without vacuum (Vadim)
ADMIN ADMIN
* More access control over who can create tables and use locks(Karel) * More access control over who can create tables and use locks (Karel)
* -Test syslog functionality * -Test syslog functionality
* Convert remaining fprintf(stderr,...) to elog() * Convert remaining fprintf(stderr,...) to elog()
* Allow elog() to return error codes, module name, file name, line * Allow elog() to return error codes, module name, file name, line
@ -89,12 +89,12 @@ TYPES
* -Add STDDEV/VARIANCE() function for standard deviation computation/variance * -Add STDDEV/VARIANCE() function for standard deviation computation/variance
* -Allow compression of large fields or a compressed field type * -Allow compression of large fields or a compressed field type
* -Large objects * -Large objects
o -Fix large object mapping scheme, own typeid or reltype(Peter) o -Fix large object mapping scheme, own typeid or reltype (Peter)
o -Not to stuff everything as files in a single directory, hash dirs o -Not to stuff everything as files in a single directory, hash dirs
o -Allow large object vacuuming o -Allow large object vacuuming
o -Tables that start with xinv confused to be large objects o -Tables that start with xinv confused to be large objects
* Add IPv6 capability to INET/CIDR types * Add IPv6 capability to INET/CIDR types
* Fix improper masking of some inet/cidr types [cidr] * - Fix improper masking of some inet/cidr types [cidr]
* Make a separate SERIAL type? * Make a separate SERIAL type?
* Store binary-compatible type information in the system * Store binary-compatible type information in the system
* Add support for & operator * Add support for & operator
@ -110,13 +110,13 @@ TYPES
* Functions returning sets don't really work right[function] * Functions returning sets don't really work right[function]
* -Add hash for int8 (Tom) * -Add hash for int8 (Tom)
* SELECT col FROM tab WHERE numeric_col = 10.1 fails * SELECT col FROM tab WHERE numeric_col = 10.1 fails
* Get BIT type working * - Get BIT type working
* Allow better handling of numeric constants, type conversion [typeconv] * Allow better handling of numeric constants, type conversion [typeconv]
* Support multiple simultaneous character sets, per SQL92 * Support multiple simultaneous character sets, per SQL92
* Reject character sequences those are not valid in their charset * Reject character sequences those are not valid in their charset
* 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, bit, varbit
* 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
@ -144,7 +144,7 @@ INDEXES
COMMANDS COMMANDS
* ALTER TABLE ADD COLUMN to inherited table put column in wrong place [inherit] * ALTER TABLE ADD COLUMN to inherited table put column in wrong place [inherit]
* -Add ALTER TABLE ALTER COLUMN feature(Peter E) * -Add ALTER TABLE ALTER COLUMN feature (Peter E)
* Add ALTER TABLE DROP COLUMN feature [drop] * Add ALTER TABLE DROP COLUMN feature [drop]
* Add ALTER TABLE command to change table ownership (Mark H) * Add ALTER TABLE command to change table ownership (Mark H)
* Add ALTER FUNCTION * Add ALTER FUNCTION
@ -154,7 +154,7 @@ COMMANDS
* Allow CLUSTER on all tables at once, and improve CLUSTER, loses NOT * Allow CLUSTER on all tables at once, and improve CLUSTER, loses NOT
NULL specification, indexes, permissions, etc on table NULL specification, indexes, permissions, etc on table
* Add SIMILAR TO to allow character classes, 'pg_[a-c]%' * Add SIMILAR TO to allow character classes, 'pg_[a-c]%'
* Auto-destroy sequence on DROP of table with SERIAL(Ryan) * Auto-destroy sequence on DROP of table with SERIAL (Ryan)
* Allow LOCK TABLE tab1, tab2, tab3 so all tables locked in unison [lock] * Allow LOCK TABLE tab1, tab2, tab3 so all tables locked in unison [lock]
* Allow INSERT/UPDATE of system-generated oid value for a row * Allow INSERT/UPDATE of system-generated oid value for a row
* -Allow ESCAPE '\' at the end of LIKE for ANSI compliance (Thomas) * -Allow ESCAPE '\' at the end of LIKE for ANSI compliance (Thomas)
@ -164,16 +164,16 @@ COMMANDS
* -Support UNION/INTERSECT/EXCEPT in sub-selects * -Support UNION/INTERSECT/EXCEPT in sub-selects
* -Allow DELETE and UPDATE to use inheritance * -Allow DELETE and UPDATE to use inheritance
* Allow INSERT INTO my_table VALUES (a, b, c, DEFAULT, x, y, z, ...) * Allow INSERT INTO my_table VALUES (a, b, c, DEFAULT, x, y, z, ...)
* Allow INSERT INTO tab (col1, ..) VALUES (val1, ..), (val2, ..)
* 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
* Add SHOW command to display locks * Add SHOW command to display locks
* Allow INSERT INTO tab (col1, ..) VALUES (val1, ..), (val2, ..)
CLIENTS CLIENTS
* Make NULL's come out at the beginning or end depending on the * Make NULL's come out at the beginning or end depending on the
ORDER BY direction ORDER BY direction
* Update reltuples from COPY command * Update reltuples from COPY command
* Allow COPY to specify column names * Allow COPY to specify column names
@ -217,26 +217,26 @@ MISC
* Create a background process for each database that runs while * Create a background process for each database that runs while
database is idle, finding superceeded rows, gathering stats and vacuuming database is idle, finding superceeded rows, gathering stats and vacuuming
* Add UNIQUE capability to non-btree indexes * Add UNIQUE capability to non-btree indexes
* Certain indexes will not shrink, i.e. oid indexes with many inserts(Vadim) * 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 * Restore unused oid's on backend exit if no one else has gotten oids
* Have UPDATE/DELETE clean out indexes * Have UPDATE/DELETE clean out indexes
* Allow cursors to be DECLAREd/OPENed/CLOSEed outside transactions * Allow cursors to be DECLAREd/OPENed/CLOSEed outside transactions
* Allow DELETE WHERE CURRENT OF cursor * Allow DELETE WHERE CURRENT OF cursor
* -Transaction log, so re-do log can be on a separate disk by * -Transaction log, so re-do log can be on a separate disk by
with after-row images(Vadim) [logging](Vadim) with after-row images (Vadim) [logging]
* Populate backend status area and write program to dump status data * Populate backend status area and write program to dump status data
* Make oid use unsigned int more reliably, pg_atoi() * Make oid use unsigned int more reliably, pg_atoi()
* Put sort files in their own directory * Put sort files in their own directory
* Allow autocommit so always in a transaction block * Allow autocommit so always in a transaction block
* Show location of syntax error in query [yacc] * Show location of syntax error in query [yacc]
* -Redesign the function call interface to handle NULLs better[function](Tom) * -Redesign the function call interface to handle NULLs better[function] (Tom)
* Missing optimizer selectivities for date, r-tree, etc. [optimizer] * Missing optimizer selectivities for date, r-tree, etc. [optimizer]
* 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
* 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 [flock]
* Allow Java server-side programming * Allow Java server-side programming
@ -296,6 +296,8 @@ MISC
* -BSD/OS does not support locale because there is no LC_MESSAGES (Bruce) * -BSD/OS does not support locale because there is no LC_MESSAGES (Bruce)
* Add connection pooling [pool] * Add connection pooling [pool]
* Allow persistent backends [persistent] * Allow persistent backends [persistent]
* Create a transaction processor to aid in persistent connections and
connection pooling
* Add SET PERFORMANCE_TIPS option to suggest INDEX, VACUUM, VACUUM * Add SET PERFORMANCE_TIPS option to suggest INDEX, VACUUM, VACUUM
ANALYZE, and CLUSTER ANALYZE, and CLUSTER
@ -304,7 +306,7 @@ SOURCE CODE
* Add use of 'const' for variables in source tree * Add use of 'const' for variables in source tree
* -Fix C optimizer problem where fmgr_ptr calls return different types (Tom) * -Fix C optimizer problem where fmgr_ptr calls return different types (Tom)
* Does Mariposa source contain any other bug fixes? * Does Mariposa source contain any other bug fixes?
* Remove SET KSQO option now that OR processing is improved(Tom) * Remove SET KSQO option now that OR processing is improved (Tom)
* -Use macros to define NT open() file parameters, remove NT-specific defines * -Use macros to define NT open() file parameters, remove NT-specific defines
* -Change CURRENT to OLD internally for rules (Bruce) * -Change CURRENT to OLD internally for rules (Bruce)
* replace the use of fprint(stderr, ...) with elog() in backend code * replace the use of fprint(stderr, ...) with elog() in backend code
Bruce Momjian
25 years ago