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@ -1,165 +1,164 @@ |
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==================================================== |
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TODO list (FAQ) for PostgreSQL |
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==================================================== |
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last updated: Fri Oct 17 08:18:16 EDT 1997 |
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TODO list for PostgreSQL |
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======================== |
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Last updated: Fri Oct 17 08:18:16 EDT 1997 |
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current maintainer: Bruce Momjian (maillist@candle.pha.pa.us) |
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Current maintainer: Bruce Momjian (maillist@candle.pha.pa.us) |
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The most recent version of this document can be viewed at |
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the postgreSQL WWW site, http://www.postgreSQL.org. |
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the PostgreSQL WWW site, http://www.postgreSQL.org. |
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THE CHANGES FOR 6.2 and 6.2.1 APPEAR AT THE END OF THIS DOCUMENT |
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THE CHANGES FOR 6.2 AND 6.2.1 APPEAR AT THE END OF THIS DOCUMENT |
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Developers who have claimed items are: |
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Bruce is Bruce Momjian<maillist@candle.pha.pa.us> |
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Bryan is Bryan Henderson<bryanh@giraffe.netgate.net> |
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Dan is Dan McGuirk <mcguirk@indirect.com> |
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Daniel is Daniel Kalchev <daniel@digsys.bg> |
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Darren is Darren King <darrenk@insightdist.com> |
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Edmund is Edmund Mergl <E.Mergl@bawue.de> |
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Erich Stamberger <eberger@gewi.kfunigraz.ac.at> |
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Gerhard is Gerhard Reithofer <gerhardr@tech-edv.co.at> |
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Igor is Igor <igor@sba.miami.edu> |
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Jun is Jun Kuwamura <juk@rccm.co.jp> |
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Kurt is "Kurt J. Lidl" <lidl@va.pubnix.com> |
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Martin is Martin S. Utesch <utesch@aut.tu-freiberg.de> |
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Oleg is Oleg Bartunov <oleg@sai.msu.su> |
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Paul is Paul M. Aoki <aoki@CS.Berkeley.EDU> |
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Patrick is Patrick van Kleef <pvk@pobox.com> |
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Raymond is Raymond Toy <toy@rtp.ericsson.se> |
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Soo-Ho Ok <shok@detc.dongeui-tc.ac.kr> |
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Stefan Simkovics <ssimkovi@rainbow.studorg.tuwien.ac.at> |
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Sven is Sven Verdoolaege <skimo@breughel.ufsia.ac.be> |
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Tatsuo is Tatsuo Ishii <t-ishii@sra.co.jp> |
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Thomas is Thomas Lockhart <tgl@mythos.jpl.nasa.gov> |
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Vadim is "Vadim B. Mikheev" <vadim@sable.krasnoyarsk.su> |
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Vivek is Vivek Khera <khera@kci.kciLink.com> |
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------------------------------------- |
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* Bruce is Bruce Momjian<maillist@candle.pha.pa.us> |
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* Bryan is Bryan Henderson<bryanh@giraffe.netgate.net> |
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* Dan is Dan McGuirk <mcguirk@indirect.com> |
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* Daniel is Daniel Kalchev <daniel@digsys.bg> |
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* Darren is Darren King <darrenk@insightdist.com> |
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* Edmund is Edmund Mergl <E.Mergl@bawue.de> |
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* Erich Stamberger <eberger@gewi.kfunigraz.ac.at> |
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* Gerhard is Gerhard Reithofer <gerhardr@tech-edv.co.at> |
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* Igor is Igor <igor@sba.miami.edu> |
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* Jun is Jun Kuwamura <juk@rccm.co.jp> |
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* Kurt is "Kurt J. Lidl" <lidl@va.pubnix.com> |
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* Martin is Martin S. Utesch <utesch@aut.tu-freiberg.de> |
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* Oleg is Oleg Bartunov <oleg@sai.msu.su> |
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* Paul is Paul M. Aoki <aoki@CS.Berkeley.EDU> |
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* Patrick is Patrick van Kleef <pvk@pobox.com> |
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* Raymond is Raymond Toy <toy@rtp.ericsson.se> |
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* Soo-Ho Ok <shok@detc.dongeui-tc.ac.kr> |
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* Stefan Simkovics <ssimkovi@rainbow.studorg.tuwien.ac.at> |
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* Sven is Sven Verdoolaege <skimo@breughel.ufsia.ac.be> |
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* Tatsuo is Tatsuo Ishii <t-ishii@sra.co.jp> |
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* Thomas is Thomas Lockhart <tgl@mythos.jpl.nasa.gov> |
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* Vadim is "Vadim B. Mikheev" <vadim@sable.krasnoyarsk.su> |
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* Vivek is Vivek Khera <khera@kci.kciLink.com> |
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RELIABILITY |
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----------- |
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-Overhaul mdmgr/smgr to fix double unlinking and double opens, cleanup(Erich) |
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-Overhaul bufmgr/lockmgr/transaction manager(Vadim) |
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Fix CLUSTER |
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Remove EXTEND? |
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Fix all NULL features |
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allow psql to print nulls meaningfully |
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Fix compile and security of Kerberos/GSSAPI code (Daniel Kalchev?) |
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COUNT on VIEW always returns zero (maybe because there is no oid for views?) |
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CREATE VIEW requires super-user priviledge |
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can lo_export()/lo_import() read/write anywhere, causing a security problem? |
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Tables that start with xinv confused to be large objects |
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Two and three dimmensional arrays display improperly, missing {} |
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Add GROUP BY and HAVING to INSERT INTO table SELECT * FROM table2 |
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lo_unlink() crashes server |
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Allow variable casts with BETWEEN 'today'::asbtime AND 'today'::abstime |
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Prevent auto-table reference, like SELECT table.col WHERE col = 3 (?) |
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Remove un-needed malloc() calls and replace with palloc(). |
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SELECT * FROM table WHERE int4_column = '1' fails |
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SELECT a[1] FROM test fails, it needs test.a[1] |
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SELECT COUNT(*) FROM TAB1, TAB2 fails |
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SELECT SUM(2+2) FROM table dumps core |
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UPDATE table SET table.value = 3 fails |
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UPDATE key_table SET keyval=max(reftab.NUM)+1 WHERE tblname='reftab' fails |
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INSERT INTO ... SELECT DISTINCT ... generates error on DISTINCT |
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INSERT INTO table SELECT id, count(*) FROM table2 GROUP BY id generate error |
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* -Overhaul mdmgr/smgr to fix double unlinking and double opens, cleanup(Erich) |
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* -Overhaul bufmgr/lockmgr/transaction manager(Vadim) |
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* Fix CLUSTER |
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* Remove EXTEND? |
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* Fix all NULL features, allow psql to print nulls meaningfully |
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* Fix compile and security of Kerberos/GSSAPI code (Daniel Kalchev?) |
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* COUNT on VIEW always returns zero (maybe because there is no oid for views?) |
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* CREATE VIEW requires super-user priviledge |
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* can lo_export()/lo_import() read/write anywhere, causing a security problem? |
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* Tables that start with xinv confused to be large objects |
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* Two and three dimmensional arrays display improperly, missing {} |
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* Add GROUP BY and HAVING to INSERT INTO table SELECT * FROM table2 |
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* lo_unlink() crashes server |
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* Allow variable casts with BETWEEN 'today'::asbtime AND 'today'::abstime |
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* Prevent auto-table reference, like SELECT table.col WHERE col = 3 (?) |
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* Remove un-needed malloc() calls and replace with palloc(). |
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* SELECT * FROM table WHERE int4_column = '1' fails |
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* SELECT a[1] FROM test fails, it needs test.a[1] |
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* SELECT COUNT(*) FROM TAB1, TAB2 fails |
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* SELECT SUM(2+2) FROM table dumps core |
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* UPDATE table SET table.value = 3 fails |
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* UPDATE key_table SET keyval=max(reftab.NUM)+1 WHERE tblname='reftab' fails |
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* INSERT INTO ... SELECT DISTINCT ... generates error on DISTINCT |
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* INSERT INTO table SELECT id, count(*) FROM table2 GROUP BY id generate error |
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ENHANCEMENTS |
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------------ |
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Replace table-level locking with row or page-level locking(Vadim) |
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PRIMARY KEY during table creation |
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Add SERIAL type |
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Preserve GRANT/REVOKE/pg_group in pg_dump |
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Transaction log |
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More access control over who can create tables and access the database |
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Add full ANSI SQL capabilities (Stefan) |
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add subselects, possibility using temporary SQL functions |
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Implement HAVING clause |
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Implement EXISTS qualifier |
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report "Not implemented" if valid syntax is supplied |
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add OUTER joins, left and right (Thomas) |
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make VIEWs updateable where possible |
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add UNIONS, INTERSECTS, SUBTRACTS |
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add temporary tables |
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add sql3 recursive unions |
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add the concept of dataspaces |
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allow conversion type casts on SELECT target fields |
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add DECIMAL, NUMERIC, DOUBLE PRECISION, BIT, BIT VARYING |
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NCHAR (as distinguished from ordinary varchar), |
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Allow compression of large fields or a compressed field type |
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Fix the rules system(Jan?,Soo-Ho) |
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robust |
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making INSTEAD rules work |
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add CONSTRAINT |
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Full set of text operations and functions |
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word searches, concat,max() on text, char |
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Large objects |
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overwriting blocks has problems |
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there are other problems, too. |
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Fix large object mapping scheme |
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not to stuff everything as files in a single directory |
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Better interface for adding to pg_group |
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Make MONEY/DECIMAL have a defined precision |
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Add support for tables >2G, or test current version |
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Threaded version of the server or libpq |
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Allow libpq to cancel query requests |
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Add REGEX internationalization |
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Add other language types for built-in functions |
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expand to allow tcl, perl, java, |
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generalize the function manager switch to pass |
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function sources to interpreter engines. |
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remove time-travel feature(Vadim) |
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reduce system column overhead(Vadmin) |
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remove pg_time table(Vadim) |
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allow row re-use without vacuum, maybe?(Vadim) |
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can't vacuum large objects |
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can't reduce index file size with vacuum |
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Remove restriction that ORDER BY field must be in SELECT list(?) |
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Allow queries about owner of tables, like: |
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SELECT u.usesysid FROM postgres.pg_user u; |
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Add word index for text fields, maybe with trigrams, i.e.: |
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' (cat | dog) & ! fox ' meaning text has cat or dog, but not fox |
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Allow readline-type or editor command editing of multi-line SQL commands |
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Populate backend status area and write program to dump status data |
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Add ALTER TABLE DROP COLUMN feature |
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Remove stale files upon startup(Vivek) |
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Add command to show privileges |
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Allow INSERT INTO ... SELECT to convert column types |
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Add syslog functionality |
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Add STDDEV/VARIANCE() function for standard deviation computation/variance |
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Add table/column/function discription table indexed by oid |
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add pg_type attribute to identify types that need length (bpchar, varchar) |
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add UNIQUE capability to non-btree indexes |
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make large objects have their own reltype |
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make number of backends a config parameter, storage/sinvaladt.h:MaxBackendId |
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certain indexes will not shrink, i.e. oid indexes with many inserts |
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|
make NULL's come out at the beginning or end depending on the ORDER BY direction |
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|
|
change the library/backend interface to use network byte order |
|
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|
|
allow unix domain sockets for local connections for performance and security |
|
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|
|
Add PAGER for psql's \dt and \d tablename |
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|
Make timezone set-able by client applications(Thomas) |
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Restore unused oid's on backend exit if no one else has gotten oids |
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|
* 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) |
|
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|
|
* Restore unused oid's on backend exit if no one else has gotten oids |
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PERFORMANCE |
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----------- |
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Use indexes in ORDER BY |
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Allow LIKE/wildcard matches to use indexes if the wildcard character is not first |
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Optimizing disjunctive queries |
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Fix bushy-plans (Martin) |
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Other optimizer bugs |
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|
Is fsync use optimized? |
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Cache most recent query plan(s?) |
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Shared catalog cache, reduce lseek()'s by caching table size in shared area |
|
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Allow compression of log and meta data |
|
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Add FILLFACTOR to index creation |
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Allow indexes to be used with OR clauses(Vadim) |
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update pg_statistic table to remove operator column |
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* Use indexes in ORDER BY |
|
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|
|
* 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) |
|
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* update pg_statistic table to remove operator column |
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DOCUMENTATION |
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------------- |
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Update usermanual source(many) |
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remove time-travel in documentation(Bruce) |
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added features used in grammer but not in docs, like :: and CAST |
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update libpq++ manual page |
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* Update usermanual source(many) |
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* remove time-travel in documentation(Bruce) |
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* added features used in grammer but not in docs, like :: and CAST |
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* update libpq++ manual page |
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PORTABILITY |
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----------- |
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Bruce Momjian
28 years ago