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REL6_5_PATCHES
Bruce Momjian 27 years ago
parent 1b812d9358
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  1. 204
      doc/TODO
  2. 1
      doc/src/sgml/release.sgml

204
doc/TODO
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@ -1,6 +1,6 @@
TODO list for PostgreSQL
========================
Last updated: Fri Jun 4 23:16:01 EDT 1999
Last updated: Sun Jun 6 22:08:59 EDT 1999
Current maintainer: Bruce Momjian (maillist@candle.pha.pa.us)
@ -19,6 +19,7 @@ Developers who have claimed items are:
* 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>
@ -33,6 +34,7 @@ Developers who have claimed items are:
* Vadim is "Vadim B. Mikheev" <vadim@krs.ru>
RELIABILITY
-----------
* Overhaul mdmgr/smgr to fix double unlinking and double opens, cleanup
@ -40,130 +42,152 @@ RELIABILITY
* 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
* 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
* elog() does not free all its memory(Jan)
* views on subselects fail
* disallow inherited columns with the same name as new columns
* recover or force failure when disk space is exhausted
* views containing aggregates sometimes fail(Jan)
* ALTER TABLE ADD COLUMN does not honor DEFAULT, add CONSTRAINT
* array index references without table name cause problems
* 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
* Elog() does not free all its memory(Jan)
* Disallow inherited columns with the same name as new columns
* Recover or force failure when disk space is exhausted
* Views containing aggregates sometimes fail(Jan)
* Alter TABLE ADD COLUMN does not honor DEFAULT, add CONSTRAINT
* Array index references without table name cause problems
* 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
ENHANCEMENTS
------------
* Transaction log, so re-do log can be on a separate disk
* Allow transaction commits with rollback with no-fsync performance
* Add referential integrity
* Add OUTER joins, left and right(Thomas)
* Allow long tuples by chaining or auto-storing outside db (chaining,large objs)
* Fix memory leak for expressions?, aggregates?
Exotic features:
* Add sql3 recursive unions
* Add the concept of dataspaces
* Add replication of distributed databases
* Allow queries across multiple databases
Admin:
* Better interface for adding to pg_group
* More access control over who can create tables and access the database
* Add full ANSI SQL capabilities
* add OUTER joins, left and right(Thomas)
* add sql3 recursive unions
* add the concept of dataspaces
* add BIT, BIT VARYING
* NCHAR (as distinguished from ordinary varchar),
* DOMAIN capability
* Add syslog functionality
* Allow elog() to return error codes, not just messages
* Allow international error message support and add error codes
* Generate postmaster pid file and remove flock/fcntl lock code
* Add ability to specifiy location of lock/socket files
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
* Better interface for adding to pg_group
* allow row re-use without vacuum, maybe?(Vadim)
* Populate backend status area and write program to dump status data
* Add ALTER TABLE DROP/ALTER COLUMN feature
* Add syslog functionality
* Add STDDEV/VARIANCE() function for standard deviation computation/variance
* add UNIQUE capability to non-btree indexes
* 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
* Restore unused oid's on backend exit if no one else has gotten oids
* have UPDATE/DELETE clean out indexes
* allow WHERE restriction on ctid
* allow pg_descriptions when creating types, tables, columns, and functions
* Allow psql to print nulls as distinct from ""(?)
* Allow cursors to be DECLAREd/OPENed/CLOSEed outside transactions
* 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
Views:
* Allow DISTINCT on views
* Allow views of aggregate columns
* Allow flag to control COPY input/output of NULLs
* Allow CLUSTER on all tables at once, and improve CLUSTER
* Allow elog() to return error codes, not just messages
* allow international error message support and add error codes
* Allow views with subselects
* Allow subqueries in target list
* Allow queries across multiple databases
* Add replication of distributed databases
* 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:
* Allow CREATE INDEX zman_index ON test (date_trunc( 'day', zman ) datetime_ops)
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
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
* Generate error on CREATE OPERATOR of ~~, ~ and and ~*
* allow psql \copy to allow delimiters
* add a function to return the last inserted oid, for use in psql scripts
* allow creation of functional indexes to use default types
* put sort files, large objects in their on directory
* do autocommit so always in a transaction block
* add SIMILAR TO to allow character classes, 'pg_[a-c]%'
* improve reporting of syntax errors by showing location of error in query
* allow chaining of pages to allow >8k tuples, auto-large object use
* redesign the function call interface to handle NULLs better(Jan)
* permissions on indexes - prevent them?
* document/trigger/rule so changes to pg_shadow create pg_pwd
* generate postmaster pid file and remove flock/fcntl lock code
* add ability to specifiy location of lock/socket files
* auto-destroy sequence on DROP of table with SERIAL
* make a separate serial type?
* allow user to define char1 column
* allow LOCK TABLE tab1, tab2, tab3 so all tables locked in unison
* allow INSERT/UPDATE of system-generated oid value for a row
* missing optimizer selectivities for date, etc.
* Add support for & operator
* store binary-compatible type information in the system
* Add SIMILAR TO to allow character classes, 'pg_[a-c]%'
* Auto-destroy sequence on DROP of table with SERIAL
* Allow LOCK TABLE tab1, tab2, tab3 so all tables locked in unison
* 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
* Rewrite the LIKE handling by rewriting the user string with the
supplied ESCAPE
* Fix memory leak for expressions?, aggregates?
* Allow Subplans to use efficient joins(hash, merge) with upper variable
* Move LIKE index optimization handling to the optimizer
Clients:
* Make NULL's come out at the beginning or end depending on the
ORDER BY direction
* Allow flag to control COPY input/output of NULLs
* Update reltuples from COPY command
* Allow CREATE INDEX zman_index ON test (date_trunc( 'day', zman ) datetime_ops)
fails index can't store constant parameters
* allow SQL function indexes
* ALTER TABLE ADD COLUMN to inherited table put column in wrong place
* Add IPv6 capability to INET/CIDR types
* Allow PQrequestCancel() to terminate when in waiting-for-lock state
* 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 ""(?)
* Increase identifier length(NAMEDATALEN) if small performance hit
* Fix for long table/column name auto-sequence serial name
* Allow row re-use without vacuum, maybe?(Vadim)
* Add UNIQUE capability to non-btree indexes
* Certain indexes will not shrink, i.e. oid indexes with many inserts
* Restore unused oid's on backend exit if no one else has gotten oids
* Have UPDATE/DELETE clean out indexes
* Allow WHERE restriction on ctid
* Allow cursors to be DECLAREd/OPENed/CLOSEed outside transactions
* Allow PQrequestCancel() to terminate when in waiting-for-lock state
* 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()
* Add PL/Perl(Mark Hollomon)
PERFORMANCE
-----------
* Allow transaction commits with rollback with no-fsync performance
* Prevent fsync in SELECT-only queries
* 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
* Allow LIMIT ability on single-table queries that have no ORDER BY to use
a matching index
* Pull requested data directly from indexes, bypassing heap data
* Prevent fsync in SELECT-only queries
* Improve LIMIT processing by using index to limit rows processed
* 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
* update pg_statistic table to remove operator column
* make index creation use psort code, because it is now faster(Vadim)
* Update pg_statistic table to remove operator column
* Make index creation use psort code, because it is now faster(Vadim)
* Allow char() not to use variable-sized header to reduce disk size
* 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
* use mmap() rather than SYSV shared memory(?)
* 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
* process const = const parts of OR clause in separate pass
* make oid use oidin/oidout not int4in/int4out in pg_type.h
* make oid use unsigned int more reliably, pg_atoi()
* create more system table indexes for faster cache lookups
* Move LIKE index optimization handling to the optimizer
* Improve LIMIT processing by using index to limit rows processed
* 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
* Create more system table indexes for faster cache lookups
* Improve Subplan list handling
* Allow Subplans to use efficient joins(hash, merge) with upper variable
DOCUMENTATION

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@ -282,6 +282,7 @@ Fix for aggregates on array indexes(Tom)
Fix for DEFAULT handles single quotes in value requiring too many quotes
Fix security problem with non-super users importing/exporting large objects(Tom)
Rollback of transaction that creates table cleaned up properly(Tom)
Fix to allow long table and column names to generate proper serial names(Tom)
Enhancements
------------

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