TODO list for PostgreSQL
========================
-Last updated: Sun Jun 6 22:08:59 EDT 1999
+Last updated: Tue Jul 6 05:41:10 EDT 1999
Current maintainer: Bruce Momjian (maillist@candle.pha.pa.us)
The most recent version of this document can be viewed at
-the PostgreSQL WWW site, http://www.postgreSQL.org.
+the PostgreSQL web site, http://www.postgreSQL.org.
-A dash(-) marks changes to be in the next release.
-
-Developers who have claimed items are:
--------------------------------------
- * Billy is Billy G. Allie <Bill.Allie@mug.org>
- * Brook is Brook Milligan <brook@trillium.NMSU.Edu>
- * Bruce is Bruce Momjian<maillist@candle.pha.pa.us>
- * Bryan is Bryan Henderson<bryanh@giraffe.netgate.net>
- * D'Arcy is D'Arcy J.M. Cain <darcy@druid.net>
- * David is David Hartwig <daveh@insightdist.com>
- * Edmund is Edmund Mergl <E.Mergl@bawue.de>
- * Goran is Goran Thyni <goran@kyla.kiruna.se>
- * Hiroshi is Hiroshi Inoue<Inoue@tpf.co.jp>
- * Jan is Jan Wieck <wieck@sapserv.debis.de>
- * Marc is Marc Fournier <scrappy@hub.org>
- * Massimo Dal Zotto <dz@cs.unitn.it>
- * Michael is Michael Meskes <meskes@debian.org>
- * Oleg is Oleg Bartunov <oleg@sai.msu.su>
- * Peter is Peter T Mount <peter@retep.org.uk>
- * Stefan Simkovics <ssimkovi@rainbow.studorg.tuwien.ac.at>
- * Tatsuo is Tatsuo Ishii <t-ishii@sra.co.jp>
- * Tom is Tom Lane <tgl@sss.pgh.pa.us>
- * Thomas is Thomas Lockhart <lockhart@alumni.caltech.edu>
- * TomH is Tom I Helbekkmo <tih@Hamartun.Priv.NO>
-
- * Vadim is "Vadim B. Mikheev" <vadim@krs.ru>
+A dash(-) marks changes that will appear in the next release.
RELIABILITY
-----------
-* Overhaul mdmgr/smgr to fix double unlinking and double opens, cleanup
-* Overhaul bufmgr/lockmgr/transaction manager
-* Remove EXTEND?
-* Tables that start with xinv confused to be large objects
-* Two and three dimensional arrays display improperly, missing {}
-* Select a[1] FROM test fails, it needs test.a[1]
-* Update table SET table.value = 3 fails
-* User who can create databases can modify pg_database table
+
+RESOURCES
+
* Elog() does not free all its memory(Jan)
-* Disallow inherited columns with the same name as new columns
+* spinlock stuck problem when elog(FATAL) and elog(ERROR) inside bufmgr
* Recover or force failure when disk space is exhausted
-* Views containing aggregates sometimes fail(Jan)
+
+PARSER
+
+* Disallow inherited columns with the same name as new columns
+* INSERT INTO ... SELECT with AS columns matching result columns problem
+* SELECT pg_class FROM pg_class generates strange error
* Alter TABLE ADD COLUMN does not honor DEFAULT, add CONSTRAINT
+* Do not allow bpchar column creation without length
+* Select a[1] FROM test fails, it needs test.a[1]
* Array index references without table name cause problems
+* Update table SET table.value = 3 fails
+* Creating index of timestamp fails
+
+VIEWS
+
+* Views containing aggregates sometimes fail(Jan)
* Views with spaces in view name fail when referenced
-* Plpgsql does not handle quoted mixed-case identifiers
-* Do not allow bpchar column creation without length
-* INSERT INTO ... SELECT with AS columns matching result columns problem
+MISC
+
+* User who can create databases can modify pg_database table
+* Plpgsql does not handle quoted mixed-case identifiers
ENHANCEMENTS
------------
+
+URGENT
+
* Add referential integrity
* Add OUTER joins, left and right(Thomas)
* Allow long tuples by chaining or auto-storing outside db (chaining,large objs)
+* Eliminate limits on query length
* Fix memory leak for expressions?, aggregates?
-Exotic features:
+EXOTIC FEATURES
+
* Add sql3 recursive unions
* Add the concept of dataspaces
* Add replication of distributed databases
* Allow queries across multiple databases
-Admin:
+ADMIN
+
* Better interface for adding to pg_group
* More access control over who can create tables and access the database
* Add syslog functionality
* Generate postmaster pid file and remove flock/fcntl lock code
* Add ability to specifiy location of lock/socket files
-Types:
+TYPES
+
* Add BIT, BIT VARYING
* Nchar (as distinguished from ordinary varchar),
* Domain capability
* Add STDDEV/VARIANCE() function for standard deviation computation/variance
* Allow compression of large fields or a compressed field type
* Large objects
- * Fix large object mapping scheme, own typeid or reltype(Peter)
- * Allow large text type to use large objects(Peter)
- * Not to stuff everything as files in a single directory
+ o Fix large object mapping scheme, own typeid or reltype(Peter)
+ o Allow large text type to use large objects(Peter)
+ o Not to stuff everything as files in a single directory
* Allow pg_descriptions when creating types, tables, columns, and functions
* Add IPv6 capability to INET/CIDR types
* Make a separate SERIAL type?
* Store binary-compatible type information in the system
* Allow user to define char1 column
* Add support for & operator
+* Allow LOCALE on a per-column basis, default to ASCII
+* Allow array on int8[]
+* Remove Money type, add money formatting for decimal type
+
+VIEWS
-Views:
* Allow DISTINCT on views
* Allow views of aggregate columns
* Allow views with subselects
-* Allow subqueries in target list
-* Put sort files, large objects in their on directory
-* Do autocommit so always in a transaction block
-* Show location of syntax error in query
-* Redesign the function call interface to handle NULLs better(Jan)
-* Document/trigger/rule so changes to pg_shadow create pg_pwd
-* Missing optimizer selectivities for date, etc.
+INDEXES
-Indexes:
* 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
* Permissions on indexes - prevent them?
* Allow SQL function indexes
* Add FILLFACTOR to index creation
+* Allow indexing of LIKE with localle character sets
+* Allow indexing of more than eight columns
+
+COMMANDS
-Commands:
* ALTER TABLE ADD COLUMN to inherited table put column in wrong place
* Add ALTER TABLE DROP/ALTER COLUMN feature
* Allow CLUSTER on all tables at once, and improve CLUSTER
* Allow INSERT/UPDATE of system-generated oid value for a row
* Allow ESCAPE '\' at the end of LIKE for ANSI compliance
* Rewrite the LIKE handling by rewriting the user string with the
- supplied ESCAPE
+ supplied ESCAPE
* Move LIKE index optimization handling to the optimizer
-Clients:
+CLIENTS
+
* Make NULL's come out at the beginning or end depending on the
- ORDER BY direction
+ ORDER BY direction
* Allow flag to control COPY input/output of NULLs
* Update reltuples from COPY command
* Allow psql \copy to allow delimiters
* Add a function to return the last inserted oid, for use in psql scripts
* Allow psql to print nulls as distinct from ""(?)
+MISC
+
* Increase identifier length(NAMEDATALEN) if small performance hit
* Allow row re-use without vacuum, maybe?(Vadim)
* Add UNIQUE capability to non-btree indexes
* Transaction log, so re-do log can be on a separate disk
* Populate backend status area and write program to dump status data
* Make oid use unsigned int more reliably, pg_atoi()
-
+* Allow subqueries in target list
+* Put sort files, large objects in their on directory
+* Do autocommit so always in a transaction block
+* Show location of syntax error in query
+* Redesign the function call interface to handle NULLs better(Jan)
+* Document/trigger/rule so changes to pg_shadow create pg_pwd
+* Missing optimizer selectivities for date, etc.
+* Overhaul mdmgr/smgr to fix double unlinking and double opens, cleanup
+* Overhaul bufmgr/lockmgr/transaction manager
+* Tables that start with xinv confused to be large objects
* Add PL/Perl(Mark Hollomon)
PERFORMANCE
-----------
+
+FSYNC
+
* Allow transaction commits with rollback with no-fsync performance
* Prevent fsync in SELECT-only queries
+INDEXES
+
* Use indexes in ORDER BY for restrictive data sets, min(), max()
* Pull requested data directly from indexes, bypassing heap data
* Use index to restrict rows returned by multi-key index when used with
- non-consecutive keys or OR clauses, so fewer heap accesses
-* Use index with constants on functions
-
+ non-consecutive keys or OR clauses, so fewer heap accesses
+* Convert function(constant) into a constant for index use
* Allow LIMIT ability on single-table queries that have no ORDER BY to use
- a matching index
+ a matching index
* Improve LIMIT processing by using index to limit rows processed
+CACHE
+
* Cache most recent query plan(s?)
* Shared catalog cache, reduce lseek()'s by caching table size in shared area
+MISC
+
* Allow compression of log and meta data
* Update pg_statistic table to remove operator column
* Make index creation use psort code, because it is now faster(Vadim)
* Do async I/O to do better read-ahead of data
* Fix memory exhaustion when using many OR's
* 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(?)
* Process const = const parts of OR clause in separate pass
* Make oid use oidin/oidout not int4in/int4out in pg_type.h
* Allow Subplans to use efficient joins(hash, merge) with upper variable
-DOCUMENTATION
--------------
+SOURCE CODE
+-----------
* Add use of 'const' for varibles in source tree
+* Fix C optimizer problem where fmgr_ptr calls return different types
+
+
+---------------------------------------------------------------------------
+
+
+Developers who have claimed items are:
+--------------------------------------
+ * Billy is Billy G. Allie <Bill.Allie@mug.org>
+ * Brook is Brook Milligan <brook@trillium.NMSU.Edu>
+ * Bruce is Bruce Momjian<maillist@candle.pha.pa.us>
+ * Bryan is Bryan Henderson<bryanh@giraffe.netgate.net>
+ * D'Arcy is D'Arcy J.M. Cain <darcy@druid.net>
+ * David is David Hartwig <daveh@insightdist.com>
+ * Edmund is Edmund Mergl <E.Mergl@bawue.de>
+ * Goran is Goran Thyni <goran@kyla.kiruna.se>
+ * Hiroshi is Hiroshi Inoue<Inoue@tpf.co.jp>
+ * Jan is Jan Wieck <wieck@sapserv.debis.de>
+ * Marc is Marc Fournier <scrappy@hub.org>
+ * Massimo Dal Zotto <dz@cs.unitn.it>
+ * Michael is Michael Meskes <meskes@postgresql.org>
+ * Oleg is Oleg Bartunov <oleg@sai.msu.su>
+ * Peter is Peter T Mount <peter@retep.org.uk>
+ * Stefan Simkovics <ssimkovi@rainbow.studorg.tuwien.ac.at>
+ * Tatsuo is Tatsuo Ishii <t-ishii@sra.co.jp>
+ * Tom is Tom Lane <tgl@sss.pgh.pa.us>
+ * Thomas is Thomas Lockhart <lockhart@alumni.caltech.edu>
+ * TomH is Tom I Helbekkmo <tih@Hamartun.Priv.NO>
+ * Vadim is "Vadim B. Mikheev" <vadim@krs.ru>
+
+
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