Update TODO with html changes.

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====================================================
TODO list (FAQ) for PostgreSQL
====================================================
last updated: Fri Oct 17 08:18:16 EDT 1997
TODO list for PostgreSQL
========================
Last updated: Fri Oct 17 08:18:16 EDT 1997
current maintainer: Bruce Momjian (maillist@candle.pha.pa.us)
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 WWW site, http://www.postgreSQL.org.
THE CHANGES FOR 6.2 and 6.2.1 APPEAR AT THE END OF THIS DOCUMENT
THE CHANGES FOR 6.2 AND 6.2.1 APPEAR AT THE END OF THIS DOCUMENT
Developers who have claimed items are:
Bruce is Bruce Momjian<maillist@candle.pha.pa.us>
Bryan is Bryan Henderson<bryanh@giraffe.netgate.net>
Dan is Dan McGuirk <mcguirk@indirect.com>
Daniel is Daniel Kalchev <daniel@digsys.bg>
Darren is Darren King <darrenk@insightdist.com>
Edmund is Edmund Mergl <E.Mergl@bawue.de>
Erich Stamberger <eberger@gewi.kfunigraz.ac.at>
Gerhard is Gerhard Reithofer <gerhardr@tech-edv.co.at>
Igor is Igor <igor@sba.miami.edu>
Jun is Jun Kuwamura <juk@rccm.co.jp>
Kurt is "Kurt J. Lidl" <lidl@va.pubnix.com>
Martin is Martin S. Utesch <utesch@aut.tu-freiberg.de>
Oleg is Oleg Bartunov <oleg@sai.msu.su>
Paul is Paul M. Aoki <aoki@CS.Berkeley.EDU>
Patrick is Patrick van Kleef <pvk@pobox.com>
Raymond is Raymond Toy <toy@rtp.ericsson.se>
Soo-Ho Ok <shok@detc.dongeui-tc.ac.kr>
Stefan Simkovics <ssimkovi@rainbow.studorg.tuwien.ac.at>
Sven is Sven Verdoolaege <skimo@breughel.ufsia.ac.be>
Tatsuo is Tatsuo Ishii <t-ishii@sra.co.jp>
Thomas is Thomas Lockhart <tgl@mythos.jpl.nasa.gov>
Vadim is "Vadim B. Mikheev" <vadim@sable.krasnoyarsk.su>
Vivek is Vivek Khera <khera@kci.kciLink.com>
-------------------------------------
* Bruce is Bruce Momjian<maillist@candle.pha.pa.us>
* Bryan is Bryan Henderson<bryanh@giraffe.netgate.net>
* Dan is Dan McGuirk <mcguirk@indirect.com>
* Daniel is Daniel Kalchev <daniel@digsys.bg>
* Darren is Darren King <darrenk@insightdist.com>
* Edmund is Edmund Mergl <E.Mergl@bawue.de>
* Erich Stamberger <eberger@gewi.kfunigraz.ac.at>
* Gerhard is Gerhard Reithofer <gerhardr@tech-edv.co.at>
* Igor is Igor <igor@sba.miami.edu>
* Jun is Jun Kuwamura <juk@rccm.co.jp>
* Kurt is "Kurt J. Lidl" <lidl@va.pubnix.com>
* Martin is Martin S. Utesch <utesch@aut.tu-freiberg.de>
* Oleg is Oleg Bartunov <oleg@sai.msu.su>
* Paul is Paul M. Aoki <aoki@CS.Berkeley.EDU>
* Patrick is Patrick van Kleef <pvk@pobox.com>
* Raymond is Raymond Toy <toy@rtp.ericsson.se>
* Soo-Ho Ok <shok@detc.dongeui-tc.ac.kr>
* Stefan Simkovics <ssimkovi@rainbow.studorg.tuwien.ac.at>
* Sven is Sven Verdoolaege <skimo@breughel.ufsia.ac.be>
* Tatsuo is Tatsuo Ishii <t-ishii@sra.co.jp>
* Thomas is Thomas Lockhart <tgl@mythos.jpl.nasa.gov>
* Vadim is "Vadim B. Mikheev" <vadim@sable.krasnoyarsk.su>
* Vivek is Vivek Khera <khera@kci.kciLink.com>
RELIABILITY
-----------
-Overhaul mdmgr/smgr to fix double unlinking and double opens, cleanup(Erich)
-Overhaul bufmgr/lockmgr/transaction manager(Vadim)
Fix CLUSTER
Remove EXTEND?
Fix all NULL features
allow psql to print nulls meaningfully
Fix compile and security of Kerberos/GSSAPI code (Daniel Kalchev?)
COUNT on VIEW always returns zero (maybe because there is no oid for views?)
CREATE VIEW requires super-user priviledge
can lo_export()/lo_import() read/write anywhere, causing a security problem?
Tables that start with xinv confused to be large objects
Two and three dimmensional arrays display improperly, missing {}
Add GROUP BY and HAVING to INSERT INTO table SELECT * FROM table2
lo_unlink() crashes server
Allow variable casts with BETWEEN 'today'::asbtime AND 'today'::abstime
Prevent auto-table reference, like SELECT table.col WHERE col = 3 (?)
Remove un-needed malloc() calls and replace with palloc().
SELECT * FROM table WHERE int4_column = '1' fails
SELECT a[1] FROM test fails, it needs test.a[1]
SELECT COUNT(*) FROM TAB1, TAB2 fails
SELECT SUM(2+2) FROM table dumps core
UPDATE table SET table.value = 3 fails
UPDATE key_table SET keyval=max(reftab.NUM)+1 WHERE tblname='reftab' fails
INSERT INTO ... SELECT DISTINCT ... generates error on DISTINCT
INSERT INTO table SELECT id, count(*) FROM table2 GROUP BY id generate error
* -Overhaul mdmgr/smgr to fix double unlinking and double opens, cleanup(Erich)
* -Overhaul bufmgr/lockmgr/transaction manager(Vadim)
* Fix CLUSTER
* Remove EXTEND?
* Fix all NULL features, allow psql to print nulls meaningfully
* Fix compile and security of Kerberos/GSSAPI code (Daniel Kalchev?)
* COUNT on VIEW always returns zero (maybe because there is no oid for views?)
* CREATE VIEW requires super-user priviledge
* can lo_export()/lo_import() read/write anywhere, causing a security problem?
* Tables that start with xinv confused to be large objects
* Two and three dimmensional arrays display improperly, missing {}
* Add GROUP BY and HAVING to INSERT INTO table SELECT * FROM table2
* lo_unlink() crashes server
* Allow variable casts with BETWEEN 'today'::asbtime AND 'today'::abstime
* Prevent auto-table reference, like SELECT table.col WHERE col = 3 (?)
* Remove un-needed malloc() calls and replace with palloc().
* SELECT * FROM table WHERE int4_column = '1' fails
* SELECT a[1] FROM test fails, it needs test.a[1]
* SELECT COUNT(*) FROM TAB1, TAB2 fails
* SELECT SUM(2+2) FROM table dumps core
* UPDATE table SET table.value = 3 fails
* UPDATE key_table SET keyval=max(reftab.NUM)+1 WHERE tblname='reftab' fails
* INSERT INTO ... SELECT DISTINCT ... generates error on DISTINCT
* INSERT INTO table SELECT id, count(*) FROM table2 GROUP BY id generate error
ENHANCEMENTS
------------
Replace table-level locking with row or page-level locking(Vadim)
PRIMARY KEY during table creation
Add SERIAL type
Preserve GRANT/REVOKE/pg_group in pg_dump
Transaction log
More access control over who can create tables and access the database
Add full ANSI SQL capabilities (Stefan)
add subselects, possibility using temporary SQL functions
Implement HAVING clause
Implement EXISTS qualifier
report "Not implemented" if valid syntax is supplied
add OUTER joins, left and right (Thomas)
make VIEWs updateable where possible
add UNIONS, INTERSECTS, SUBTRACTS
add temporary tables
add sql3 recursive unions
add the concept of dataspaces
allow conversion type casts on SELECT target fields
add DECIMAL, NUMERIC, DOUBLE PRECISION, BIT, BIT VARYING
NCHAR (as distinguished from ordinary varchar),
Allow compression of large fields or a compressed field type
Fix the rules system(Jan?,Soo-Ho)
robust
making INSTEAD rules work
add CONSTRAINT
Full set of text operations and functions
word searches, concat,max() on text, char
Large objects
overwriting blocks has problems
there are other problems, too.
Fix large object mapping scheme
not to stuff everything as files in a single directory
Better interface for adding to pg_group
Make MONEY/DECIMAL have a defined precision
Add support for tables >2G, or test current version
Threaded version of the server or libpq
Allow libpq to cancel query requests
Add REGEX internationalization
Add other language types for built-in functions
expand to allow tcl, perl, java,
generalize the function manager switch to pass
function sources to interpreter engines.
remove time-travel feature(Vadim)
reduce system column overhead(Vadmin)
remove pg_time table(Vadim)
allow row re-use without vacuum, maybe?(Vadim)
can't vacuum large objects
can't reduce index file size with vacuum
Remove restriction that ORDER BY field must be in SELECT list(?)
Allow queries about owner of tables, like:
SELECT u.usesysid FROM postgres.pg_user u;
Add word index for text fields, maybe with trigrams, i.e.:
' (cat | dog) & ! fox ' meaning text has cat or dog, but not fox
Allow readline-type or editor command editing of multi-line SQL commands
Populate backend status area and write program to dump status data
Add ALTER TABLE DROP COLUMN feature
Remove stale files upon startup(Vivek)
Add command to show privileges
Allow INSERT INTO ... SELECT to convert column types
Add syslog functionality
Add STDDEV/VARIANCE() function for standard deviation computation/variance
Add table/column/function discription table indexed by oid
add pg_type attribute to identify types that need length (bpchar, varchar)
add UNIQUE capability to non-btree indexes
make large objects have their own reltype
make number of backends a config parameter, storage/sinvaladt.h:MaxBackendId
certain indexes will not shrink, i.e. oid indexes with many inserts
make NULL's come out at the beginning or end depending on the ORDER BY direction
change the library/backend interface to use network byte order
allow unix domain sockets for local connections for performance and security
Add PAGER for psql's \dt and \d tablename
Make timezone set-able by client applications(Thomas)
Restore unused oid's on backend exit if no one else has gotten oids
* Replace table-level locking with row or page-level locking(Vadim)
* PRIMARY KEY during table creation
* Add SERIAL type
* Preserve GRANT/REVOKE/pg_group in pg_dump
* Transaction log
* More access control over who can create tables and access the database
* Add full ANSI SQL capabilities (Stefan)
* add subselects, possibility using temporary SQL functions
* Implement HAVING clause
* Implement EXISTS qualifier
* report "Not implemented" if valid syntax is supplied
* add OUTER joins, left and right (Thomas)
* make VIEWs updateable where possible
* add UNIONS, INTERSECTS, SUBTRACTS
* add temporary tables
* add sql3 recursive unions
* add the concept of dataspaces
* allow conversion type casts on SELECT target fields
* add DECIMAL, NUMERIC, DOUBLE PRECISION, BIT, BIT VARYING
* NCHAR (as distinguished from ordinary varchar),
* Allow compression of large fields or a compressed field type
* Fix the rules system(Jan?,Soo-Ho)
* robust
* making INSTEAD rules work
* add CONSTRAINT
* Full set of text operations and functions
* word searches, concat,max() on text, char
* Large objects
* overwriting blocks has problems
* there are other problems, too.
* Fix large object mapping scheme
* not to stuff everything as files in a single directory
* Better interface for adding to pg_group
* Make MONEY/DECIMAL have a defined precision
* Add support for tables >2G, or test current version
* Threaded version of the server or libpq
* Allow libpq to cancel query requests
* Add REGEX internationalization
* Add other language types for built-in functions
* expand to allow tcl, perl, java,
* generalize the function manager switch to pass
* function sources to interpreter engines.
* remove time-travel feature(Vadim)
* reduce system column overhead(Vadmin)
* remove pg_time table(Vadim)
* allow row re-use without vacuum, maybe?(Vadim)
* can't vacuum large objects
* can't reduce index file size with vacuum
* Remove restriction that ORDER BY field must be in SELECT list(?)
* Allow queries about owner of tables, like:
* SELECT u.usesysid FROM postgres.pg_user u;
* Add word index for text fields, maybe with trigrams, i.e.:
* ' (cat | dog) & ! fox ' meaning text has cat or dog, but not fox
* Allow readline-type or editor command editing of multi-line SQL commands
* Populate backend status area and write program to dump status data
* Add ALTER TABLE DROP COLUMN feature
* Remove stale files upon startup(Vivek)
* Add command to show privileges
* Allow INSERT INTO ... SELECT to convert column types
* Add syslog functionality
* Add STDDEV/VARIANCE() function for standard deviation computation/variance
* Add table/column/function discription table indexed by oid
* add pg_type attribute to identify types that need length (bpchar, varchar)
* add UNIQUE capability to non-btree indexes
* make large objects have their own reltype
* make number of backends a config parameter, storage/sinvaladt.h:MaxBackendId
* certain indexes will not shrink, i.e. oid indexes with many inserts
* make NULL's come out at the beginning or end depending on the ORDER BY direction
* change the library/backend interface to use network byte order
* allow unix domain sockets for local connections for performance and security
* Add PAGER for psql's \dt and \d tablename
* Make timezone set-able by client applications(Thomas)
* Restore unused oid's on backend exit if no one else has gotten oids
PERFORMANCE
-----------
Use indexes in ORDER BY
Allow LIKE/wildcard matches to use indexes if the wildcard character is not first
Optimizing disjunctive queries
Fix bushy-plans (Martin)
Other optimizer bugs
Is fsync use optimized?
Cache most recent query plan(s?)
Shared catalog cache, reduce lseek()'s by caching table size in shared area
Allow compression of log and meta data
Add FILLFACTOR to index creation
Allow indexes to be used with OR clauses(Vadim)
update pg_statistic table to remove operator column
* Use indexes in ORDER BY
* Allow LIKE/wildcard matches to use indexes if the wildcard character is not first
* Optimizing disjunctive queries
* Fix bushy-plans (Martin)
* Other optimizer bugs
* Is fsync use optimized?
* Cache most recent query plan(s?)
* Shared catalog cache, reduce lseek()'s by caching table size in shared area
* Allow compression of log and meta data
* Add FILLFACTOR to index creation
* Allow indexes to be used with OR clauses(Vadim)
* update pg_statistic table to remove operator column
DOCUMENTATION
-------------
Update usermanual source(many)
remove time-travel in documentation(Bruce)
added features used in grammer but not in docs, like :: and CAST
update libpq++ manual page
* Update usermanual source(many)
* remove time-travel in documentation(Bruce)
* added features used in grammer but not in docs, like :: and CAST
* update libpq++ manual page
PORTABILITY
-----------