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Update TODO list.

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Bruce Momjian 1999-10-06 13:36:50 +00:00
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@ -1,6 +1,6 @@
TODO list for PostgreSQL TODO list for PostgreSQL
======================== ========================
Last updated: Tue Oct 5 17:11:29 EDT 1999 Last updated: Wed Oct 6 09:35:16 EDT 1999
Current maintainer: Bruce Momjian (maillist@candle.pha.pa.us) Current maintainer: Bruce Momjian (maillist@candle.pha.pa.us)
@ -20,7 +20,7 @@ RESOURCES
* Elog() does not free all its memory(Jan) * Elog() does not free all its memory(Jan)
* spinlock stuck problem when elog(FATAL) and elog(ERROR) inside bufmgr * spinlock stuck problem when elog(FATAL) and elog(ERROR) inside bufmgr
* Recover or force failure when disk space is exhausted * -Recover or force failure when disk space is exhausted(Hiroshi)
PARSER PARSER
@ -29,13 +29,13 @@ 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
* 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](Tom)
* -Array index references without table name cause problems [array] * -Array index references without table name cause problems [array](Tom)
* Update table SET table.value = 3 fails(SQL standard says this is OK) * Update table SET table.value = 3 fails(SQL standard says this is OK)
* 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
* -INSERT ... SELECT ... GROUP BY groups by target columns not source columns * -INSERT ... SELECT ... GROUP BY groups by target columns not source columns(Tom)
* -CREATE TABLE test (a char(5) DEFAULT text '', b int4) fails on INSERT * -CREATE TABLE test (a char(5) DEFAULT text '', b int4) fails on INSERT(Tom)
* 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
@ -52,7 +52,7 @@ PARSER
* prevent primary key of nine columns [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 [distinct] * SELECT DISTINCT ON col1 col1 col2 FROM tab1 is broken [distinct]
* -When using aggregates + GROUP BY, no rows in should yield no rows out * -When using aggregates + GROUP BY, no rows in should yield no rows out(Tom)
VIEWS VIEWS
@ -79,8 +79,8 @@ URGENT
* Add OUTER joins, left and right[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?[memory](Tom?) * Fix memory leak for expressions[memory](Tom?)
* -Fix memory leak for aggregates? * -Fix memory leak for aggregates(Tom)
ADMIN ADMIN
@ -118,7 +118,7 @@ TYPES
* Remove Money type, add money formatting for decimal type * Remove Money type, add money formatting for decimal type
* Declare typein/out functions in pg_proc with a special "C string" data type * Declare typein/out functions in pg_proc with a special "C string" data type
* Add non-large-object binary field * Add non-large-object binary field
* -Add index on NUMERIC/DECIMAL type * -Add index on NUMERIC/DECIMAL type(Jan)
* 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[function] * Functions returning sets don't really work right[function]
@ -133,7 +133,7 @@ INDEXES
* Allow CREATE INDEX zman_index ON test (date_trunc( 'day', zman ) datetime_ops) * Allow CREATE INDEX zman_index ON test (date_trunc( 'day', zman ) datetime_ops)
fails index can't store constant parameters fails index can't store constant parameters
* Allow creation of functional indexes to use default types * Allow creation of functional indexes to use default types
* Permissions on indexes - prevent them? * Permissions on indexes, prevent them?
* Allow SQL function indexes * Allow SQL function indexes
* Add FILLFACTOR to index creation * Add FILLFACTOR to index creation
* Allow indexing of LIKE with localle character sets * Allow indexing of LIKE with localle character sets
@ -152,7 +152,7 @@ COMMANDS
* Allow ESCAPE '\' at the end of LIKE for ANSI compliance [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 [like] supplied ESCAPE [like]
* -Move LIKE index optimization handling to the optimizer * -Move LIKE index optimization handling to the optimizer(Tom)
* Allow RULE recompilation * Allow RULE recompilation
* Support UNION/INTERSECT/EXCEPT in sub-selects * Support UNION/INTERSECT/EXCEPT in sub-selects
* Allow DELETE and UPDATE to use inheritance using tablename* * Allow DELETE and UPDATE to use inheritance using tablename*
@ -182,14 +182,14 @@ 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 * -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 WHERE restriction on ctid * Allow WHERE restriction on ctid
* 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) [logging] with after-row images(Vadim) [logging](Vadim)
* 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
@ -213,8 +213,8 @@ PERFORMANCE
FSYNC FSYNC
* -Allow transaction commits with rollback with no-fsync performance [fsync] * -Allow transaction commits with rollback with no-fsync performance [fsync](Vadim)
* -Prevent fsync in SELECT-only queries * -Prevent fsync in SELECT-only queries(Vadim)
INDEXES INDEXES
@ -222,7 +222,7 @@ INDEXES
* Pull requested data directly from indexes, bypassing heap data * Pull requested data directly from indexes, bypassing heap data
* Use index to restrict rows returned by multi-key index when used with * Use index to restrict rows returned by multi-key index when used with
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(Tom)
* 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 [limit] a matching index [limit]
* Improve LIMIT processing by using index to limit rows processed [limit] * Improve LIMIT processing by using index to limit rows processed [limit]
@ -234,7 +234,7 @@ INDEXES
* 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, int8, * Allow SELECT * FROM tab WHERE int2col = 4 use int2col index, int8,
float4, numeric/decimal too [optimizer] float4, numeric/decimal too [optimizer]
* -Allow optimizer to prefer plans that match ORDER BY * -Allow optimizer to prefer plans that match ORDER BY(Tom)
CACHE CACHE
@ -249,11 +249,11 @@ 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 * 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 [cnfify] * -Fix memory exhaustion when using many OR's [cnfify](Tom)
* 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(?)
* -Process const = const parts of OR clause in separate pass * -Process const = const parts of OR clause in separate pass(Tom)
* Make oid use oidin/oidout not int4in/int4out in pg_type.h * Make oid use oidin/oidout not int4in/int4out in pg_type.h
* 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