New TODO.
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Bruce Momjian
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doc/TODO
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doc/TODO
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@ -1,7 +1,7 @@
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====================================================
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TODO list (FAQ) for PostgreSQL
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====================================================
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last updated: Wed Jan 29 00:16:44 EST 1997
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last updated: Sat Mar 1 21:28:10 EST 1997
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current maintainer: Bruce Momjian (maillist@candle.pha.pa.us)
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@ -16,6 +16,7 @@ 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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@ -33,17 +34,20 @@ remove -S (stable memory) option or fix memory manager
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Fix CLUSTER
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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 V code
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Fix compile and security of Kerberos/GSSAPI code (Daniel Kalchev?)
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Dropping a table twice causes corruption, drop/create not rollback-able
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-SUM aggregate on no rows or null value should return NULL, not zero(Thomas)
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SELECT on two tables where zero or one table in WHERE and target
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clause returns no rows
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fix system to use oid index using constant without cast to oid
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clause returns no rows
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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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SELECT a[1] FROM test fails, it needs test.a[1]
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INSERT INTO ... SELECT DISTINCT ... generates error on DISTINCT
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pg_database.datdba is oid, should be int4
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fix array diffs in regression test
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can lo_export()/lo_import() read/write anywhere, causing a security problem?
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SELECT ... INTO TABLE ... with varchar()/char() types have zero-length fields
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Fix UPDATE key_table SET keyval=max(reftab.NUM)+1 WHERE tblname='reftab'
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ENHANCEMENTS
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------------
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@ -63,7 +67,7 @@ Add full ANSI SQL capabilities
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add domains
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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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allow conversion type casts on SELECT target fields
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Allow compression of large fields or a compressed field type
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Fix the rules system(Jan?)
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robust
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@ -92,22 +96,21 @@ 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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split apart row removal function from statistics function
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can't vacuum large objects
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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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split apart row removal function from statistics function
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can't vacuum large objects
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Remove restriction that ORDER BY field must be in SELECT list(?)
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Allow queries about owner of datbases, tables like:
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SELECT u.usesysid FROM postgres.pg_user u;
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DROP AGGREGATE should take in basetype as an arg(Darren)
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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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Add common-sense constant type promotions
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-Add common-sense constant type promotions(Bruce)
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Allow readline-type or editor command editing of multi-line SQL commands
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Allow pg_dump to dump all databases at a site in one command
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Allow function result to be used in GROUP BY
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-Allow pg_dump to dump all databases at a site in one command(Bruce)
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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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@ -118,11 +121,13 @@ Allow aggregate for All types, like count(Darren)
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Improve optimizer plan choice(Darren)
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Add STDDEV/VARIANCE() function for standard deviation computation/variance
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Add upper/lower functions
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-Add table/column/function discription table indexed by oid
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Add table/column/function discription table indexed by oid
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-make all identifiers case-insensitive(Bruce)
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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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improve auto-type casting
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allow GROUP BY on columns that are functions
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add non-ascii collating strings with strcoll() and setlocale()
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new DATE routines (Thomas)
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PERFORMANCE
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-----------
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@ -136,12 +141,12 @@ Multi-representational types, a la Illustra. For example, have a
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objects, when greater than 8K.
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Use indexes in ORDER BY
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Profile engine in INSERT's and other operations
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Speed up hash creation by using btree's fast sort/insert routines
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-Speed up hash creation by using btree's fast sort/insert routines(done)
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Cache most recent query plan(s?)
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Allow compression of log and meta data
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Allow LIKE/wildcard matches to use indexes if the wildcard character is not first
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Add FILLFACTOR to index creation
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Allow indexes to be used with OR clauses
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Allow indexes to be used with OR clauses(Vadim)
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-Add column optimization statistics to vacuum(Bruce)
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-Change pg_attribute.attnvals name to attdispursion and change type float4
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update pg_statistic table to remove operator column
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@ -151,15 +156,10 @@ DOCUMENTATION
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Update usermanual source
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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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add DECLARE manual pages
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add DECLARE manual page
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PORTABILITY
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-----------
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Windows NT port
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Mariposa project at Berkeley has a person who's working on this
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Win95 port, use GNU port or remove it?
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Merge i386_solaris and sparc_solaris into solaris
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Switch from PORTNAME to individual feature defines (use configure/autoconf?)
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Change c.h "Index" and "bool" so they do not conflict with c++
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@ -214,6 +214,8 @@ Allow libpq to distinguish between text value '' and null(Bruce)
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Allow non-postgres users with createdb privs to destroydb's
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Allow restriction on who can create C functions(Bryan)
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Allow restriction on who can do backend COPY(Bryan)
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Allow system to use oid index using constant without cast to oid(Bruce)
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Auto-cast numeric constants to type of non-constant(Bruce)
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Can shrink tables, pg_time and pg_log(Vadim & Erich)
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Change debug level 2 to print queries only, changed debug heading layout(Bruce)
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Change default decimal constant representation from float4 to float8(Bruce)
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