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@ -8,8 +8,6 @@ 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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Dashed items(-) are being worked on for the 6.1 release. |
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THE CHANGES FOR 6.1 APPEAR AT THE END OF THIS DOCUMENT |
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Developers who have claimed items are: |
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@ -44,7 +42,6 @@ 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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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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COUNT on VIEW always returns zero (maybe because there is no oid for views?) |
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@ -53,9 +50,9 @@ 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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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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SELECT COUNT(*) FROM TAB1, TAB2 fails |
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Tables that start with xinv confused to be large objects |
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ENHANCEMENTS |
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------------ |
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@ -82,7 +79,6 @@ Fix the rules system(Jan?,Soo-Ho) |
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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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- upper/lower() |
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word searches, concat,max() on text, char |
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Replace table-level locking with row or page-level locking(Vadim) |
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Large objects |
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@ -91,10 +87,6 @@ Large objects |
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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 multi-field indexes easier to create(Vadim) |
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allow optimizer to effectively use parameters without accessing table |
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-Add int8 type(Thomas) |
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-Add MONEY/DECIMAL type(Thomas) |
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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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Incorporate the PERL PG95 interface library into source tree(Edmund) |
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@ -109,44 +101,32 @@ 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(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 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(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(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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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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-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 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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-allow GROUP BY on columns that on functions(Vadim) |
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-add non-ascii collating strings with strcoll() and setlocale (Oleg) |
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-new DATE routines (Thomas) |
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-index NULL fields(Vadim) |
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-Add SERIAL column type(Vadim) |
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-Add multi-column indexes(Vadim) |
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-Add SET VAR TO command |
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make pg_dumpall preserve table ownership, not just database ownership |
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make large objects have their own reltype |
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PERFORMANCE |
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----------- |
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Optimizing disjunctive queries |
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-Add Genetic Query Optimzation for many tables (Martin) |
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-Fix bushy-plans (Martin) |
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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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Multi-representational types, a la Illustra. For example, have a |
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@ -154,13 +134,11 @@ 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(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(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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Bruce Momjian
28 years ago