TODO list for PostgreSQL
========================
-Last updated: Thu Nov 22 20:48:31 EST 2001
+Last updated: Thu Nov 22 21:21:59 EST 2001
Current maintainer: Bruce Momjian (pgman@candle.pha.pa.us)
* Improve control over user privileges, including table creation and
lock use [privileges] (Karel, others)
+* Make it easier to create a database owned by someone who can't createdb
* -Permission to DELETE table also allows UPDATE (Peter E)
* Allow elog() to return error codes, module name, file name, line
number, not just messages (Peter E) [elog]
* -Allow international error message support and add error codes[elog](Peter E)
* -Remove unused sort files on postmaster startup (Bruce)
* Remove unreferenced table files and temp tables during database vacuum
- or postmaster startup
+ or postmaster startup (Bruce)
* -Remove unreferenced sort files during postmaster startup (Bruce)
-* Add table name mapping for numeric file names
+* Add table name mapping for numeric file names (Bruce)
* -Better document pg_hba.conf host-based authentication (Bruce)
* -Encrpyt passwords in pg_shadow table using MD5 (Bruce, Vince)
* Incremental backups
-* Make it easier to create a database owned by someone who can't createdb
* Remove behavior of postmaster -o after making postmaster/postgres
flags unique
* Allow usernames to be specified directly in pg_hba.conf (Bruce)
-* Add functions to return storage length of TOAST data values (Tom)
+* Add function to return compressed length of TOAST data values (Tom)
-TYPES
+DATA TYPES
* Add domain capability [domain]
* Add IPv6 capability to INET/CIDR types
interface (force out-of-line storage and no compression)
o Auto-delete large objects when referencing row is deleted
-MULTILANGUAGE SUPPORT
+MULTI-LANGUAGE SUPPORT
* Add NCHAR (as distinguished from ordinary varchar),
* Allow LOCALE on a per-column basis, default to ASCII
* Allow CREATE INDEX zman_index ON test (date_trunc( 'day', zman ) datetime_ops)
fails index can't store constant parameters
-* Add FILLFACTOR to index creation
* Order duplicate index entries by tid for faster heap lookups
* -Re-enable partial indexes
* -Prevent pg_attribute from having duplicate oids for indexes (Tom)
* UNIQUE INDEX on base column not honored on inserts from inherited table
INSERT INTO inherit_table (unique_index_col) VALUES (dup) should fail
[inheritance]
-* Allow DELETE/UPDATE on inherited table
-* Add UNIQUE capability to non-btree indexes
-* Certain indexes will not shrink, e.g. oid indexes with many inserts
* Have UPDATE/DELETE clean out indexes
+* Allow UPDATE/DELETE on inherited table
+* Add UNIQUE capability to non-btree indexes
* Add btree index support for reltime, tinterval, regproc
* Add rtree index support for line, lseg, path, point
+* Certain indexes will not shrink, e.g. oid indexes with many inserts
* Use indexes for min() and max() or convert to SELECT col FROM tab ORDER
BY col DESC LIMIT 1 if appropriate index exists and WHERE clause acceptible
+* Allow LIKE indexing optimization for non-ASCII locales
* Use index to restrict rows returned by multi-key index when used with
non-consecutive keys or OR clauses, so fewer heap accesses
-* Allow SELECT * FROM tab WHERE int2col = 4 to use int2col index, int8,
- float4, numeric/decimal too [optimizer]
-* -Use indexes with CIDR '<<' (contains) operator
-* Allow LIKE indexing optimization for non-ASCII locales
* Be smarter about insertion of already-ordered data into btree index
* -Gather more accurate dispersion statistics using indexes (Tom)
* Add deleted bit to index tuples to reduce heap access
* Prevent index uniqueness checks when UPDATE does not modifying column
* Add bitmap indexes [performance]
* Improve handling of index scans for NULL
+* Allow SELECT * FROM tab WHERE int2col = 4 to use int2col index, int8,
+ float4, numeric/decimal too [optimizer]
+* -Use indexes with CIDR '<<' (contains) operator
* Improve concurrency in GIST
+* Add FILLFACTOR to index creation
SYSTEM TABLES
COMMANDS
* Add SIMILAR TO to allow character classes, 'pg_[a-c]%'
+* Add BETWEEN ASYMMETRIC/SYMMETRIC
* -Allow LOCK TABLE tab1, tab2, tab3 so all tables locked in unison [lock]
* Allow RULE recompilation
-* Add BETWEEN ASYMMETRIC/SYMMETRIC
* Remove LIMIT #,# and force use LIMIT and OFFSET clauses in 7.3 (Bruce)
* Allow LIMIT/OFFSET to use expressions
-* -Allow GRANT/REVOKE to handle multiple user/group names
+* -Allow GRANT/REVOKE to handle multiple user/group names (Vince)
* -Allow CREATEUSER/CREATEDB ordering in CREATE/ALTER USER (Vince)
* Disallow TRUNCATE on tables that are involved in referential constraints
* Add OR REPLACE clauses to non-FUNCTION object creation
-* CREATE TABLE AS can not determine column lengths from expressions
+* CREATE TABLE AS can not determine column lengths from expressions (Bruce)
* ALTER
o ALTER TABLE ADD COLUMN does not honor DEFAULT and non-CHECK CONSTRAINT
o ALTER TABLE ADD COLUMN to inherited table put column in wrong place
[inheritance]
- o Add ALTER TABLE DROP COLUMN feature [drop]
+ o Add ALTER TABLE DROP COLUMN feature [drop] (Bruce)
o Add ALTER FUNCTION
o Add ALTER TABLE DROP non-CHECK CONSTRAINT
o -Add ALTER TABLE DROP CHECK CONSTRAINT (Christopher Kings-Lynne)
o ALTER TABLE ADD PRIMARY KEY (Christopher Kings-Lynne)
o ALTER TABLE ADD UNIQUE (Christopher Kings-Lynne)
- o ALTER TABLE table ADD COLUMN column SERIAL doesn't create sequence
- o Prevent ALTER TABLE RENAME from renaming indexes and sequences (?)
-
+ o ALTER TABLE ADD COLUMN column SERIAL doesn't create sequence
* CLUSTER
o cluster all tables at once
- o prevent lose of indexes, permissions, inheritance
+ o prevent lose of indexes, permissions, inheritance (Bruce)
o Automatically keep clustering on a table
o -Keep statistics about clustering (Tom) [optimizer]
* COPY
o Allow INSERT INTO tab (col1, ..) VALUES (val1, ..), (val2, ..)
o Allow INSERT INTO my_table VALUES (a, b, c, DEFAULT, x, y, z, ...)
o Disallow missing columns in INSERT ... VALUES, per ANSI
- o Allow INSERT/UPDATE ... RETURNING new.col or old.col, handle
+ o Allow INSERT/UPDATE ... RETURNING new.col or old.col; handle
RULE cases (Philip)
* SHOW/SET
o Add SHOW command to display locks
o Add SET PERFORMANCE_TIPS option to suggest INDEX, VACUUM, VACUUM
ANALYZE, and CLUSTER
o Add SHOW command to see locale
-SERVER-SIDE LANGUAGES
+* SERVER-SIDE LANGUAGES
o Allow PL/PgSQL's RAISE function to take expressions
- o PL/PgSQL does not handle quoted mixed-case identifiers
+ o Fix PL/PgSQL to handle quoted mixed-case identifiers
o Change PL/PgSQL to use palloc() instead of malloc()
o Add untrusted version of plpython
o Add plsh server-side shell language (Peter E)
+ o Allow Java server-side programming (?) [java]
CLIENTS
* Allow psql \d to show temporary table structure
* Add XML interface: psql, pg_dump, COPY, separate server (?)
* -Fix libpq to properly handle socket failures under native MS Win32
-* Fix ecpg variable handling in EXEC SQL AT statement
* -Add MD5 to ODBC (Bruce)
* Add documentation for perl, including mention of DBI/DBD perl location
* JDBC
o Remove space_or_nl and line_end from pgc.l
o Fix nested C comments
o Add SQLSTATE
+ o Fix variable handling in EXEC SQL AT statement
REFERENTIAL INTEGRITY
* Allow user to control trigger firing order
* Change foreign key constraint for array -> element to mean element
in array
-* Fix foreign key constraints to not error on intermediate states
- of the database (Stephan)
+* Fix foreign key constraints to not error on intermediate db states (Stephan)
DEPENDENCY CHECKING
* Allow plug-in modules to emulate features from other databases
* SQL*Net listener that makes PostgreSQL appear as an Oracle database
to clients
-* Allow Java server-side programming [java]
MISCELLANEOUS
* Cache most recent query plan(s) (Karel) [prepare]
* Shared catalog cache, reduce lseek()'s by caching table size in shared area
-* Add free-behind capability for large sequential scans
+* Add free-behind capability for large sequential scans (Bruce)
VACUUM
SOURCE CODE
-----------
* Add use of 'const' for variables in source tree
-* Does Mariposa source contain any other bug fixes (?)
* -Convert remaining fprintf(stderr,...)/perror() to elog() (Peter E)
* Fix problems with libpq non-blocking/async code [async]
* -Merge global and template BKI files (Tom)
* Add version file format stamp to heap and other table types
* -Make elog(LOG) in WAL its own output type, distinct from DEBUG (Peter E)
* Rename some /contrib modules from pg* to pg_*
-* Move some things from /contrib into main tree, like fuzzystrmatch
+* Move some things from /contrib into main tree
* 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
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