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Postgres FD Implementation
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Abuhujair Javed
Postgres FD Implementation
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c35fedda
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c35fedda
authored
Sep 27, 1999
by
Bruce Momjian
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Update TODO list.
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c35fedda
TODO list for PostgreSQL
TODO list for PostgreSQL
========================
========================
Last updated: Sun Sep 26 2
0:37:50
EDT 1999
Last updated: Sun Sep 26 2
3:23:58
EDT 1999
Current maintainer: Bruce Momjian (maillist@candle.pha.pa.us)
Current maintainer: Bruce Momjian (maillist@candle.pha.pa.us)
...
@@ -9,6 +9,9 @@ the PostgreSQL web site, http://www.PostgreSQL.org.
...
@@ -9,6 +9,9 @@ the PostgreSQL web site, http://www.PostgreSQL.org.
A dash(-) marks changes that will appear in the next release.
A dash(-) marks changes that will appear in the next release.
Names in brackets "[]" indicate more detailed information is available in
the directory pgsql/doc/TODO.detail/ under that name.
RELIABILITY
RELIABILITY
-----------
-----------
...
@@ -27,8 +30,7 @@ PARSER
...
@@ -27,8 +30,7 @@ PARSER
* Alter TABLE ADD COLUMN does not honor DEFAULT, add CONSTRAINT
* Alter TABLE ADD COLUMN does not honor DEFAULT, add CONSTRAINT
* Do not allow bpchar column creation without length
* Do not allow bpchar column creation without length
* Select a[1] FROM test fails, it needs test.a[1]
* Select a[1] FROM test fails, it needs test.a[1]
* -Array index references without table name cause problems
* -Array index references without table name cause problems [array]
(see TODO.detail/array)
* Update table SET table.value = 3 fails
* Update table SET table.value = 3 fails
* 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
...
@@ -37,21 +39,19 @@ PARSER
...
@@ -37,21 +39,19 @@ PARSER
* UNION with LIMIT fails
* UNION with LIMIT fails
* 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
(see TODO.detail/inherit)
[inherit]
* CREATE TABLE x AS SELECT 1 UNION SELECT 2 fails
* CREATE TABLE x AS SELECT 1 UNION SELECT 2 fails
* CREATE TABLE test(col char(2) DEFAULT user) fails in length restriction
* CREATE TABLE test(col char(2) DEFAULT user) fails in length restriction
* mismatched types in CREATE TABLE ... DEFAULT causes problems
* mismatched types in CREATE TABLE ... DEFAULT causes problems [default]
(see TODO.detail/default)
* SELECT ... UNION ... ORDER BY fails when sort expr not in result list
* SELECT ... UNION ... ORDER BY fails when sort expr not in result list
* Be smarter about promoting types when UNION merges different data types
* Be smarter about promoting types when UNION merges different data types
* SELECT ... UNION ... GROUP BY fails if column types disagree
* SELECT ... UNION ... GROUP BY fails if column types disagree
* redesign INSERT ... SELECT to have two levels of target list
* redesign INSERT ... SELECT to have two levels of target list
* -select * from pg_class where oid in (0,-1)
* -select * from pg_class where oid in (0,-1)
* have INTERSECT/EXCEPT prevent duplicates unless ALL is specified
* have INTERSECT/EXCEPT prevent duplicates unless ALL is specified
* prevent primary key of nine columns
(see TODO.detail/primary)
* prevent primary key of nine columns
[primary]
* SELECT COUNT('asdf') FROM pg_class WHERE oid=12 crashes
* SELECT COUNT('asdf') FROM pg_class WHERE oid=12 crashes
* SELECT DISTINCT ON col1 col1 col2 FROM tab1 is broken
* SELECT DISTINCT ON col1 col1 col2 FROM tab1 is broken [distinct]
(see TODO.detail/distinct)
VIEWS
VIEWS
...
@@ -70,11 +70,11 @@ ENHANCEMENTS
...
@@ -70,11 +70,11 @@ ENHANCEMENTS
URGENT
URGENT
* Add referential integrity(Jan?)
(see TODO.detail/primary)
* Add referential integrity(Jan?)
[primary]
* Add OUTER joins, left and right
(see TODO.detail/outer)
(Thomas, Bruce)
* Add OUTER joins, left and right
[outer]
(Thomas, Bruce)
* Allow long tuples by chaining or auto-storing outside db (chaining,large objs)
* Allow long tuples by chaining or auto-storing outside db (chaining,large objs)
* Eliminate limits on query length
* Eliminate limits on query length
* Fix memory leak for expressions?
(see TODO.detail/memory)
(Tom?)
* Fix memory leak for expressions?
[memory]
(Tom?)
* -Fix memory leak for aggregates?
* -Fix memory leak for aggregates?
ADMIN
ADMIN
...
@@ -84,9 +84,8 @@ ADMIN
...
@@ -84,9 +84,8 @@ ADMIN
* Add syslog functionality
* Add syslog functionality
* Allow elog() to return error codes, not just messages
* Allow elog() to return error codes, not just messages
* Allow international error message support and add error codes
* Allow international error message support and add error codes
* Generate postmaster pid file and remove flock/fcntl lock code
* Generate postmaster pid file and remove flock/fcntl lock code [flock]
(see TODO.detail/flock)
* Add ability to specifiy location of lock/socket files [flock]
* Add ability to specifiy location of lock/socket files (see TODO.detail/flock)
TYPES
TYPES
...
@@ -115,7 +114,7 @@ TYPES
...
@@ -115,7 +114,7 @@ TYPES
* Add non-large-object binary field
* Add non-large-object binary field
* Add index on NUMERIC/DECIMAL type
* Add index on NUMERIC/DECIMAL type
* Make Absolutetime/Relativetime int4 because time_t can be int8 on some ports
* Make Absolutetime/Relativetime int4 because time_t can be int8 on some ports
* Functions returning sets don't really work right
(see TODO.detail/function)
* Functions returning sets don't really work right
[function]
VIEWS
VIEWS
...
@@ -136,19 +135,18 @@ INDEXES
...
@@ -136,19 +135,18 @@ INDEXES
COMMANDS
COMMANDS
* ALTER TABLE ADD COLUMN to inherited table put column in wrong place
* ALTER TABLE ADD COLUMN to inherited table put column in wrong place [inherit]
(see TODO.detail/inherit)
* Add ALTER TABLE DROP/ALTER COLUMN feature
* Add ALTER TABLE DROP/ALTER COLUMN feature
* 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 on table
(see TODO.detail/cluster)
NULL specification on table
[cluster]
* Generate error on CREATE OPERATOR of ~~, ~ and and ~*
* Generate error on CREATE OPERATOR of ~~, ~ and and ~*
* 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
* Allow LOCK TABLE tab1, tab2, tab3 so all tables locked in unison
* 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
(see TODO.detail/like)
* Allow ESCAPE '\' at the end of LIKE for ANSI compliance
[like]
* Rewrite the LIKE handling by rewriting the user string with the
* Rewrite the LIKE handling by rewriting the user string with the
supplied ESCAPE
(see TODO.detail/like)
supplied ESCAPE
[like]
* Move LIKE index optimization handling to the optimizer
* Move LIKE index optimization handling to the optimizer
* Allow RULE recompilation
* Allow RULE recompilation
* Support UNION/INTERSECT/EXCEPT in sub-selects
* Support UNION/INTERSECT/EXCEPT in sub-selects
...
@@ -161,7 +159,7 @@ CLIENTS
...
@@ -161,7 +159,7 @@ CLIENTS
* Update reltuples from COPY command
* Update reltuples from COPY command
* Allow psql \copy to allow delimiters
* Allow psql \copy to allow delimiters
* Add a function to return the last inserted oid, for use in psql scripts
* Add a function to return the last inserted oid, for use in psql scripts
* Allow psql to print nulls as distinct from ""
(see TODO.detail/null)
* Allow psql to print nulls as distinct from ""
[null]
* PQrequestCancel() be able to terminate backend waiting for lock
* PQrequestCancel() be able to terminate backend waiting for lock
EXOTIC FEATURES
EXOTIC FEATURES
...
@@ -185,19 +183,16 @@ MISC
...
@@ -185,19 +183,16 @@ MISC
* Allow cursors to be DECLAREd/OPENed/CLOSEed outside transactions
* Allow cursors to be DECLAREd/OPENed/CLOSEed outside transactions
* Allow PQrequestCancel() to terminate when in waiting-for-lock state
* Allow PQrequestCancel() to terminate when in waiting-for-lock state
* -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)
(see TODO.detail/logging)
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()
* Allow subqueries in target list
* Allow subqueries in target list
* Put sort files, large objects in their own directory
* Put sort files, large objects in their own directory
* Do autocommit so always in a transaction block(?)
* Do autocommit so always in a transaction block(?)
* Show location of syntax error in query (see TODO.detail/yacc)
* Show location of syntax error in query [yacc]
* Redesign the function call interface to handle NULLs better
* Redesign the function call interface to handle NULLs better [function]
(see TODO.detail/function)
* Document/trigger/rule so changes to pg_shadow recreate pg_pwd [pg_shadow]
* Document/trigger/rule so changes to pg_shadow recreate pg_pwd
* Missing optimizer selectivities for date, r-tree, etc. [optimizer]
(see TODO.detail/pg_shadow)
* Missing optimizer selectivities for date, r-tree, etc.
(see TODO.detail/optimizer)
* Overhaul mdmgr/smgr to fix double unlinking and double opens, cleanup
* Overhaul mdmgr/smgr to fix double unlinking and double opens, cleanup
* Overhaul bufmgr/lockmgr/transaction manager
* Overhaul bufmgr/lockmgr/transaction manager
* Add PL/Perl(Mark Hollomon)
* Add PL/Perl(Mark Hollomon)
...
@@ -212,8 +207,7 @@ PERFORMANCE
...
@@ -212,8 +207,7 @@ PERFORMANCE
FSYNC
FSYNC
* -Allow transaction commits with rollback with no-fsync performance
* -Allow transaction commits with rollback with no-fsync performance [fsync]
(see TODO.detail/fsync)
* -Prevent fsync in SELECT-only queries
* -Prevent fsync in SELECT-only queries
INDEXES
INDEXES
...
@@ -224,23 +218,21 @@ INDEXES
...
@@ -224,23 +218,21 @@ INDEXES
non-consecutive keys or OR clauses, so fewer heap accesses
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
* Allow LIMIT ability on single-table queries that have no ORDER BY to use
* Allow LIMIT ability on single-table queries that have no ORDER BY to use
a matching index(see TODO.detail/limit)
a matching index [limit]
* Improve LIMIT processing by using index to limit rows processed
* Improve LIMIT processing by using index to limit rows processed [limit]
(see TODO.detail/limit)
* Have optimizer take LIMIT into account when considering index scans [limit]
* Have optimizer take LIMIT into account when considering index scans
(see TODO.detail/limit)
* Make index creation use psort code, because it is now faster(Vadim)
* Make index creation use psort code, because it is now faster(Vadim)
* Allow creation of sort temp tables > 1 Gig
* Allow creation of sort temp tables > 1 Gig
* Create more system table indexes for faster cache lookups
* Create more system table indexes for faster cache lookups
* fix indexscan() so it does leak memory by not requiring caller to free
* fix indexscan() so it does leak memory by not requiring caller to free
* Improve _bt_binsrch() to handle equal keys better, remove _bt_firsteq()(Tom)
* Improve _bt_binsrch() to handle equal keys better, remove _bt_firsteq()(Tom)
* Allow SELECT * FROM tab WHERE int2col = 4 use int2col index
* Allow SELECT * FROM tab WHERE int2col = 4 use int2col index
, int8 too
(see TODO.detail/optimizer)
[optimizer]
* Allow optimizer to prefer plans that match ORDER BY
* Allow optimizer to prefer plans that match ORDER BY
CACHE
CACHE
* Cache most recent query plan(s)
(see TODO.detail/prepare)
* Cache most recent query plan(s)
[prepare]
* Shared catalog cache, reduce lseek()'s by caching table size in shared area
* Shared catalog cache, reduce lseek()'s by caching table size in shared area
* elog() flushes cache, try invalidating just entries from current xact,
* elog() flushes cache, try invalidating just entries from current xact,
perhaps using invalidation cache
perhaps using invalidation cache
...
@@ -252,7 +244,7 @@ MISC
...
@@ -252,7 +244,7 @@ MISC
* Update pg_statistic table to remove operator column
* Update pg_statistic table to remove operator column
* Allow char() not to use variable-sized header to reduce disk size
* 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
* -Fix memory exhaustion when using many OR's
(see TODO.detail/cnfify)
* -Fix memory exhaustion when using many OR's
[cnfify]
* 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(?)
...
@@ -263,20 +255,19 @@ MISC
...
@@ -263,20 +255,19 @@ MISC
* 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
(see TODO.detail/memory)
allocation
[memory]
* fix memory leak in cache code when non-existant table is referenced
* fix memory leak in cache code when non-existant table is referenced
* 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
* pass atttypmod through parser in more cases
(see TODO.detail/atttypmod)
* pass atttypmod through parser in more cases
[atttypmod]
* remove duplicate type in/out functions for disk and net
* remove duplicate type in/out functions for disk and net
* change VACUUM ANALYZE to use btree comparison functions, not <,=,> calls
* change VACUUM ANALYZE to use btree comparison functions, not <,=,> calls
* Allow persistent backends
(see TODO.detail/persistent)
* Allow persistent backends
[persistent]
* Misc
(see TODO.detail/performance)
* Misc
[performance]
SOURCE CODE
SOURCE CODE
-----------
-----------
* Add use of 'const' for varibles in source tree
* Add use of 'const' for varibles in source tree
* Fix C optimizer problem where fmgr_ptr calls return different types
* Fix C optimizer problem where fmgr_ptr calls return different types [alpha]
(see TODO.detail/alpha)
* -Add needed includes and removed unneeded include files(Bruce)
* -Add needed includes and removed unneeded include files(Bruce)
* Make configure --enable-debug add -g on compile line
* Make configure --enable-debug add -g on compile line
* Does Mariposa source contain any other bug fixes?
* Does Mariposa source contain any other bug fixes?
...
...
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