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Update TODO list.
This commit is contained in:
Bruce Momjian
parent
a871e36944
commit
d228278c6e
269
doc/TODO
269
doc/TODO
@ -1,6 +1,6 @@
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TODO list for PostgreSQL
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TODO list for PostgreSQL
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========================
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========================
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Last updated: Thu May 10 13:29:36 EDT 2001
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Last updated: Thu May 10 16:26:24 EDT 2001
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Current maintainer: Bruce Momjian (pgman@candle.pha.pa.us)
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Current maintainer: Bruce Momjian (pgman@candle.pha.pa.us)
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@ -57,13 +57,13 @@ ADMIN
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* Remove unused files during database vacuum or postmaster startup
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* Remove unused files during database vacuum or postmaster startup
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* Add table name mapping for numeric file names
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* Add table name mapping for numeric file names
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* Overhaul pg_hba.conf host-based authentication
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* Overhaul pg_hba.conf host-based authentication
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* Incremental backups
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TYPES
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TYPES
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* Add domain capability
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* Add domain capability
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* Add IPv6 capability to INET/CIDR types
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* Add IPv6 capability to INET/CIDR types
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* Add conversion function from text to inet
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* Add conversion function from text to inet
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* Make a separate SERIAL type?
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* Store binary-compatible type information in the system
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* Store binary-compatible type information in the system
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* Allow nulls in arrays
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* Allow nulls in arrays
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* Allow arrays to be ORDER'ed
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* Allow arrays to be ORDER'ed
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@ -107,125 +107,11 @@ INDEXES
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[inheritance]
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[inheritance]
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* Prevent pg_attribute from having duplicate oids for indexes (Tom)
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* Prevent pg_attribute from having duplicate oids for indexes (Tom)
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* Add UNIQUE capability to non-btree indexes
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* Add UNIQUE capability to non-btree indexes
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* Certain indexes will not shrink, i.e. oid indexes with many inserts (Vadim)
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* Certain indexes will not shrink, e.g. oid indexes with many inserts (Vadim)
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* Have UPDATE/DELETE clean out indexes
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* Have UPDATE/DELETE clean out indexes
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* Add btree index support for reltime, tinterval, regproc
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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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* Add rtree index support for line, lseg, path, point
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* Use indexes for min() and max()
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COMMANDS
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* ALTER TABLE ADD COLUMN to inherited table put column in wrong place
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[inheritance]
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* Add ALTER TABLE DROP COLUMN feature [drop]
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* Add ALTER FUNCTION
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* Add ALTER TABLE ... DROP CONSTRAINT
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* Automatically drop constraints/functions when object is dropped
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* CLUSTER
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* cluster all tables at once
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* prevent lose of indexes, permissions, inheritance
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* Automatically keep clustering on a table
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* Keep statistics about clustering, perhaps during VACUUM ANALYZE
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[optimizer]
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* Add SIMILAR TO to allow character classes, 'pg_[a-c]%'
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* Auto-destroy sequence on DROP of table with SERIAL (Ryan)
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* Allow LOCK TABLE tab1, tab2, tab3 so all tables locked in unison [lock]
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* Allow INSERT/UPDATE of system-generated oid value for a row
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* Allow INSERT INTO my_table VALUES (a, b, c, DEFAULT, x, y, z, ...)
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* Allow INSERT INTO tab (col1, ..) VALUES (val1, ..), (val2, ..)
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* Allow RULE recompilation
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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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* Add SHOW command to display locks
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* Bring INSERT ... VALUES up to full SQL92 spec, disallow missing
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columns, allow DEFAULT
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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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* Add BETWEEN ASYMMETRIC/SYMMETRIC
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* Add SET or BEGIN timeout parameter to cancel query if waiting too long
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* Change LIMIT val,val to offset,limit to match MySQL
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* Allow Pl/PgSQL's RAISE function to take expressions
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CLIENTS
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* Make NULL's come out at the beginning or end depending on the
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ORDER BY direction
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* COPY
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* Update reltuples in COPY
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* Allow specification of column names
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* Allow dump/load of CSV format
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* fix array handling for ECPG
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* have pg_dump use LEFT OUTER JOIN in multi-table SELECTs
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or multiple SELECTS to avoid bad system catalog entries
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* allow psql \d to show primary and foreign keys
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* allow psql \d to show temporary table structure
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* add XML interface capability
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* Add a global RESET command for use with connection pooling
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* Remove <=6.3 version compatibility in ODBC?
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* Add SET REAL_FORMAT and SET DOUBLE_PRECISION_FORMAT using printf args
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REFERENTIAL INTEGRITY
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* Add MATCH PARTIAL 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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* 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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* Enforce referential integrity for system tables
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* INSERT & UPDATE/DELETE in transaction of primary key fails with
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deferredTriggerGetPreviousEvent or "change violation" [foreign]
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* Add unique indexes to pg_shadow.usename and pg_shadow.usesysid or
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switch to pg_shadow.oid as user id
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* Add unique indexes on pg_database
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* Check all system tables and add unique indexes as needed
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* Make constraints clearer in dump file
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* Change foreign key constraint for array -> element to mean element
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in array
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EXOTIC FEATURES
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* Add sql3 recursive unions
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* Add the concept of dataspaces/tablespaces [tablespaces]
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* Allow queries across multiple databases
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* Allow nested transactions (Vadim)
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* Allow INSERT/UPDATE ... RETURNING new.col or old.col (Philip)
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* Add pre-parsing phase that convets non-ANSI features to supported features
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* SQL*Net listener that makes PostgreSQL appear as an Oracle database
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to clients
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* Incremental backups
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* Allow SQL92 schemas
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* Handle transaction rollover [transactions]
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MISCELLANEOUS
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* Increase identifier length(NAMEDATALEN) if small performance hit
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* Create a background process for each database that runs while
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database is idle, finding superceeded rows, gathering stats and vacuuming
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* Implement UNDO using transaction log
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* Populate backend status area and write program to dump status data
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* Put sort files in their own directory
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* Allow autocommit so always in a transaction block
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* Show location of syntax error in query [yacc]
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* Overhaul bufmgr/lockmgr/transaction manager
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* Encrpyt passwords in pg_shadow table using MD5 (Vince)
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* Allow Java server-side programming [java]
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* Add sed-like regular expression search/replace capability
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* Change representation of whole-tuple parameters to functions
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PERFORMANCE
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-----------
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-FSYNC
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* Delay fsync() when other backends are about to commit too [fsync]
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* Determine optimal commit_delay value
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* Determine optimal fdatasync/fsync, O_SYNC/O_DSYNC options
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* Allow multiple blocks to be written to WAL with one write()
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INDEXES
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* Use indexes to find min() and max()
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* Use index to restrict rows returned by multi-key index when used with
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* Use index to restrict rows returned by multi-key index when used with
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non-consecutive keys or OR clauses, so fewer heap accesses
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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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* Allow SELECT * FROM tab WHERE int2col = 4 use int2col index, int8,
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@ -235,7 +121,130 @@ INDEXES
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* Be smarter about insertion of already-ordered data into btree index
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* Be smarter about insertion of already-ordered data into btree index
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* Gather more accurate dispersion statistics using indexes
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* Gather more accurate dispersion statistics using indexes
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* Add deleted bit to index tuples to reduce heap access
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* Add deleted bit to index tuples to reduce heap access
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* Prevent index uniqueness checks when UPDATE does not modify column
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* Prevent index uniqueness checks when UPDATE does not modifying column
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* System Tables
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* Add unique indexes to pg_shadow.usename and pg_shadow.usesysid or
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switch to pg_shadow.oid as user id
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* Add unique indexes on pg_database
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* Check all system tables and add unique indexes as needed
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* Remove pg_listener index
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* Remove unused pg_variable, pg_inheritproc, pg_ipl tables
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COMMANDS
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* ALTER
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* ALTER TABLE ADD COLUMN to inherited table put column in wrong place
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||||||
|
[inheritance]
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||||||
|
* Add ALTER TABLE DROP COLUMN feature [drop]
|
||||||
|
* Add ALTER FUNCTION
|
||||||
|
* Add ALTER TABLE DROP CONSTRAINT
|
||||||
|
* CLUSTER
|
||||||
|
* cluster all tables at once
|
||||||
|
* prevent lose of indexes, permissions, inheritance
|
||||||
|
* Automatically keep clustering on a table
|
||||||
|
* Keep statistics about clustering, perhaps during VACUUM ANALYZE
|
||||||
|
[optimizer]
|
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|
* COPY
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||||||
|
* Update reltuples in COPY
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||||||
|
* Allow specification of column names
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||||||
|
* Allow dump/load of CSV format
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||||||
|
* CURSOR
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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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||||||
|
* Allow cursors to be DECLAREd/OPENed/CLOSEed outside transactions
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||||||
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* Allow DELETE WHERE CURRENT OF cursor
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||||||
|
* INSERT
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||||||
|
* Allow INSERT/UPDATE of system-generated oid value for a row
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||||||
|
* Allow INSERT INTO tab (col1, ..) VALUES (val1, ..), (val2, ..)
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||||||
|
* Allow INSERT INTO my_table VALUES (a, b, c, DEFAULT, x, y, z, ...)
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|
* Disallow missing columns in INSERT ... VALUES, per ANSI
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|
* Allow INSERT/UPDATE ... RETURNING new.col or old.col (Philip)
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|
* Add SIMILAR TO to allow character classes, 'pg_[a-c]%'
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|
* Auto-destroy sequence on DROP of table with SERIAL, perhaps with a separate
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|
SERIAL type
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|
* Allow LOCK TABLE tab1, tab2, tab3 so all tables locked in unison [lock]
|
||||||
|
* Allow RULE recompilation
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|
* Add BETWEEN ASYMMETRIC/SYMMETRIC
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|
* SHOW/SET
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|
* Add SHOW command to display locks
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|
* Add a global RESET command for use with connection pooling
|
||||||
|
* Add SET or BEGIN timeout parameter to cancel query if waiting too long
|
||||||
|
* Add SET REAL_FORMAT and SET DOUBLE_PRECISION_FORMAT using printf args
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||||||
|
* Remove SET KSQO option now that OR processing is improved (Tom)
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* Add SET PERFORMANCE_TIPS option to suggest INDEX, VACUUM, VACUUM
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|
ANALYZE, and CLUSTER
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|
* Change LIMIT val,val to offset,limit to match MySQL
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||||||
|
* Allow Pl/PgSQL's RAISE function to take expressions
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|
|
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|
CLIENTS
|
||||||
|
|
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|
* Make NULL's come out at the beginning or end depending on the
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|
ORDER BY direction
|
||||||
|
* fix array handling in ECPG
|
||||||
|
* have pg_dump use LEFT OUTER JOIN in multi-table SELECTs
|
||||||
|
or multiple SELECTS to avoid bad system catalog entries
|
||||||
|
* allow psql \d to show primary and foreign keys
|
||||||
|
* allow psql \d to show temporary table structure
|
||||||
|
* add XML interface capability
|
||||||
|
* Remove <=6.3 version compatibility in ODBC?
|
||||||
|
|
||||||
|
REFERENTIAL INTEGRITY
|
||||||
|
|
||||||
|
* Add MATCH PARTIAL referential integrity
|
||||||
|
* -Check that primary key exists at foreign key definition time
|
||||||
|
* Prevent column dropping if column is used by foreign key
|
||||||
|
* Propagate column or table renaming to foreign key constraints
|
||||||
|
* Add deferred trigger queue file (Jan)
|
||||||
|
* Allow oid to act as a foreign key
|
||||||
|
* Implement dirty reads and use them in RI triggers
|
||||||
|
* Enforce referential integrity for system tables
|
||||||
|
* INSERT & UPDATE/DELETE in transaction of primary key fails with
|
||||||
|
deferredTriggerGetPreviousEvent or "change violation" [foreign]
|
||||||
|
* Make constraints clearer in dump file
|
||||||
|
* Change foreign key constraint for array -> element to mean element
|
||||||
|
in array
|
||||||
|
* Automatically drop constraints/functions when object is dropped
|
||||||
|
|
||||||
|
TRANSACTIONS
|
||||||
|
|
||||||
|
* Implement UNDO using transaction log
|
||||||
|
* Allow autocommit so always in a transaction block
|
||||||
|
* Overhaul bufmgr/lockmgr/transaction manager
|
||||||
|
* Allow nested transactions (Vadim)
|
||||||
|
* Handle transaction rollover [transactions]
|
||||||
|
|
||||||
|
EXOTIC FEATURES
|
||||||
|
|
||||||
|
* Add sql3 recursive unions
|
||||||
|
* Add the concept of dataspaces/tablespaces [tablespaces]
|
||||||
|
* Allow SQL92 schemas
|
||||||
|
* Allow queries across multiple databases
|
||||||
|
* Add pre-parsing phase that converts non-ANSI features to supported features
|
||||||
|
* SQL*Net listener that makes PostgreSQL appear as an Oracle database
|
||||||
|
to clients
|
||||||
|
|
||||||
|
MISCELLANEOUS
|
||||||
|
|
||||||
|
* Increase identifier length(NAMEDATALEN) if small performance hit
|
||||||
|
* Create a background process for each database that runs while
|
||||||
|
database is idle, finding superceeded rows, gathering stats and vacuuming
|
||||||
|
* Populate backend status area and write program to dump status data
|
||||||
|
* Put sort files in their own directory
|
||||||
|
* Show location of syntax error in query [yacc]
|
||||||
|
* Encrpyt passwords in pg_shadow table using MD5 (Vince)
|
||||||
|
* Allow Java server-side programming [java]
|
||||||
|
* Add sed-like regular expression search/replace capability
|
||||||
|
* Change representation of whole-tuple parameters to functions
|
||||||
|
|
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|
PERFORMANCE
|
||||||
|
-----------
|
||||||
|
|
||||||
|
FSYNC
|
||||||
|
|
||||||
|
* Delay fsync() when other backends are about to commit too [fsync]
|
||||||
|
* Determine optimal commit_delay value
|
||||||
|
* Determine optimal fdatasync/fsync, O_SYNC/O_DSYNC options
|
||||||
|
* Allow multiple blocks to be written to WAL with one write()
|
||||||
|
|
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CACHE
|
CACHE
|
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|
|
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@ -247,14 +256,15 @@ VACUUM
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* Improve speed with indexes (perhaps recreate index instead) [vacuum]
|
* Improve speed with indexes (perhaps recreate index instead) [vacuum]
|
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* Reduce lock time by moving tuples with read lock, then write
|
* Reduce lock time by moving tuples with read lock, then write
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lock and truncate table [vacuum]
|
lock and truncate table [vacuum]
|
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* Make ANALYZE a separate command
|
* -Make ANALYZE a separate command
|
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* Allow ANALYZE to ESTIMATE based on certain random precentage of rows
|
* -Allow ANALYZE to ESTIMATE based on certain random precentage of rows
|
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* Add LAZY VACUUM (Vadim)
|
* Add LAZY VACUUM (Vadim)
|
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|
|
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MISCELLANEOUS
|
MISCELLANEOUS
|
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|
|
||||||
* Allow compression of log and meta data
|
* Allow compression of log and meta data
|
||||||
* Do async I/O to do better read-ahead of data
|
* Do async I/O to do better read-ahead of data
|
||||||
|
* Experiment with multi-threaded backend [thread]
|
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* Get faster regex() code from Henry Spencer <henry@zoo.utoronto.ca>
|
* Get faster regex() code from Henry Spencer <henry@zoo.utoronto.ca>
|
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when it is available
|
when it is available
|
||||||
* Use mmap() rather than SYSV shared memory(?) [mmap]
|
* Use mmap() rather than SYSV shared memory(?) [mmap]
|
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@ -263,15 +273,11 @@ MISCELLANEOUS
|
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* improve dynamic memory allocation by introducing tuple-context memory
|
* improve dynamic memory allocation by introducing tuple-context memory
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allocation (Tom)
|
allocation (Tom)
|
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* allow configuration of maximum number of open files
|
* allow configuration of maximum number of open files
|
||||||
* Remove pg_listener index
|
* -Improve statistics storage in pg_class [performance]
|
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* Improve statistics storage in pg_class [performance]
|
|
||||||
* Add connection pooling [pool]
|
* Add connection pooling [pool]
|
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* Allow persistent backends [persistent]
|
* Allow persistent backends [persistent]
|
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* Create a transaction processor to aid in persistent connections and
|
* Create a transaction processor to aid in persistent connections and
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connection pooling
|
connection pooling
|
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* Add SET PERFORMANCE_TIPS option to suggest INDEX, VACUUM, VACUUM
|
|
||||||
ANALYZE, and CLUSTER
|
|
||||||
* Force transactions that commit at near the same time use a single fsync()
|
|
||||||
* Make blind writes go through the file descriptor cache
|
* Make blind writes go through the file descriptor cache
|
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* Allow logging of query durations
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* Allow logging of query durations
|
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|
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@ -279,10 +285,7 @@ SOURCE CODE
|
|||||||
-----------
|
-----------
|
||||||
* Add use of 'const' for variables in source tree
|
* Add use of 'const' for variables in source tree
|
||||||
* 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)
|
|
||||||
* Convert remaining fprintf(stderr,...)/perror() to elog()
|
* Convert remaining fprintf(stderr,...)/perror() to elog()
|
||||||
* Remove unused pg_variable, pg_inheritproc, pg_ipl tables
|
|
||||||
* Experiment with multi-threaded backend [thread]
|
|
||||||
* Fix problems with libpq non-blocking/async code [async]
|
* Fix problems with libpq non-blocking/async code [async]
|
||||||
* Merge global and template BKI files (Peter E)
|
* Merge global and template BKI files (Peter E)
|
||||||
* Fix username/password length limits in all areas
|
* Fix username/password length limits in all areas
|
||||||
@ -293,12 +296,12 @@ SOURCE CODE
|
|||||||
* Add version file format stamp to heap and other table types
|
* Add version file format stamp to heap and other table types
|
||||||
* Make elog(LOG) in WAL its own output type, distinct from DEBUG
|
* Make elog(LOG) in WAL its own output type, distinct from DEBUG
|
||||||
* Rename some /contrib modules from pg* to pg_*
|
* Rename some /contrib modules from pg* to pg_*
|
||||||
* Remove warnings created by -Wcast-align
|
|
||||||
* Move platform-specific ps status display info from ps_status.c to ports
|
|
||||||
* Decide on spelling of indexes/indices
|
|
||||||
* Allow ps status display to work on Solaris/SVr4-based systems
|
|
||||||
* Move some things from /contrib into main tree, like soundex
|
* Move some things from /contrib into main tree, like soundex
|
||||||
* Allow plug-in modules to emulate features from other databases
|
* Allow plug-in modules to emulate features from other databases
|
||||||
|
* Remove warnings created by -Wcast-align
|
||||||
|
* Move platform-specific ps status display info from ps_status.c to ports
|
||||||
|
* Allow ps status display to work on Solaris/SVr4-based systems
|
||||||
|
* Decide on spelling of indexes/indices
|
||||||
* Add mention of VACUUM, log rotation to Administrator's Guide
|
* Add mention of VACUUM, log rotation to Administrator's Guide
|
||||||
* Add PL/Python documentation
|
* Add PL/Python documentation
|
||||||
|
|
||||||
|
|||||||
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Reference in New Issue
Block a user