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Prepare for 6.4.1.
This commit is contained in:
Bruce Momjian
277
doc/TODO
277
doc/TODO
@ -1,13 +1,13 @@
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TODO list for PostgreSQL
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========================
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Last updated: Fri Nov 6 22:17:33 EST 1998
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Last updated: Fri Dec 18 00:15:58 EST 1998
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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 CHANGES FOR 6.4 APPEAR AT THE END OF THIS DOCUMENT
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THE CHANGES FOR 6.4.1 APPEAR AT THE END OF THIS DOCUMENT
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A dash(-) marks changes to be in the next release.
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@ -45,20 +45,6 @@ Developers who have claimed items are:
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* TomH is Tom I Helbekkmo <tih@Hamartun.Priv.NO>
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* Vadim is "Vadim B. Mikheev" <vadim@sable.krasnoyarsk.su>
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Additional 6.4 developers include:
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---------------------------------
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* Jun Kuwamura <juk@rccm.co.jp>
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* Zeugswetter Andreas SARZ <Andreas.Zeugswetter@telecom.at>
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* Soonmyung. Hong <hong@lunaris.hanmesoft.co.kr>
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* Anders Hammarquist <iko@netg.se>
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* Jeroen van Vianen <jeroenv@design.nl>
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* Aldrin L. <aldrin@americasnet.com>
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* Pascal ANDRE <andre@via.ecp.fr>
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* Magnus Hagander <mha@edu.sollentuna.se>
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* Robert Bruccoleri <bruc@pluto.njcc.com>
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* Paul A Vixie <paul@vix.com>
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* Jacek Lasecki <jacek@sound.eti.pg.gda.pl>
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RELIABILITY
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-----------
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* Overhaul mdmgr/smgr to fix double unlinking and double opens, cleanup
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@ -83,11 +69,21 @@ RELIABILITY
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* computations in views fail:
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create view test as select usesysid * usesysid from pg_shadow;
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* views containing aggregates sometimes fail(Jan)
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* ALTER TABLE ADD COLUMN does not honor DEFAULT, add CONSTRAINT
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* SELECT DISTINCT i FROM dtest ORDER BY j generates strange output
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* fix memory leak in aborted transactions
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* array index references without table name cause problems
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* aggregates on array indexes crash backend
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* subqueries containing HAVING return incorrect results
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* DEFAULT handles single quotes in value by requiring too many quotes
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* make CURSOR valid even after you hit end of cursor
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* views with spaces in view name fail when referenced
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* plpgsql does not handle quoted mixed-case identifiers
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* do not allow bpchar column creation without length
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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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* Add SERIAL type
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* Transaction log, so re-do log can be on a separate disk
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* Allow transaction commits with rollback with no-fsync performance
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* More access control over who can create tables and access the database
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@ -120,7 +116,7 @@ ENHANCEMENTS
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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 aor dog, but not fox
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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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* Add ALTER TABLE DROP/ALTER COLUMN feature
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* Allow INSERT INTO ... SELECT to convert column types
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* Add syslog functionality(Marc)
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* Add STDDEV/VARIANCE() function for standard deviation computation/variance
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@ -167,7 +163,6 @@ ENHANCEMENTS
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* Restructure storing of GRANT permission information to allow +-=
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* allow psql \copy to allow delimiters
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* allow international error message support and add error codes
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* allow ORDER BY a function(David)
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* allow usernames with dashes(GRANT fails)
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* add a function to return the last inserted oid, for use in psql scripts
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* allow creation of functional indexes to use default types
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@ -175,13 +170,27 @@ ENHANCEMENTS
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* CREATE VIEW myview (name) AS SELECT lname FROM wages fails
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* do autocommit so always in a transaction block
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* add SIMILAR TO to allow character classes, 'pg_[a-c]%'
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* allow function isnull(val,'string') to return string if value is null
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* multi-verion concurrency control(Vadim)
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* improve reporting of syntax errors by showing location of error in query
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* allow chaining of pages to allow >8k tuples
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* no min/max for oid type
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* remove un-needed conversion functions
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* redesign the function call interface to handle NULLs better(Jan)
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* permissions on indexes - prevent them?
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* allow multiple generic operators in expressions without the use of parentheses
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* document/trigger/rule so changes to pg_shadow create pg_pwd
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* improve group handling
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* generate postmaster pid file and remove flock/fcntl lock code
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* improve PRIMARY KEY handling
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* add ability to specifiy location of lock/socket files
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* psql \d on index with char()/varchar() fields shows improper length
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* disallow LOCK outside a transaction, change message to LOCK instead of DELETE
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* Fix roundoff problems in "cash" datatype
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* fix any sprintf() overruns
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* add portable vsnprintf()
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* auto-destroy sequence on SERIAL removal
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* CREATE TABLE inside aborted transaction causes stray table file
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* allow user to define char1 column
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PERFORMANCE
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-----------
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@ -224,198 +233,36 @@ DOCUMENTATION
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=============================================================================
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CHANGES IN THE 6.4 RELEASE
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--------------------------
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Bug Fixes
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---------
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Fix for a tiny memory leak in PQsetdb/PQfinish(Bryan)
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Remove char2-16 data types, use char/varchar(Darren)
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Pqfn not handles a NOTICE message(Anders)
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Reduced busywaiting overhead for spinlocks with many backends (dg)
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Stuck spinlock detection (dg)
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Fix up "ISO-style" timespan decoding and encoding(Thomas)
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Fix problem with table drop after rollback of transaction(Vadim)
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Change error message and remove non-functional update message(Vadim)
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Fix for COPY array checking
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Fix for SELECT 1 UNION SELECT NULL
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Fix for buffer leaks in large object calls(Pascal)
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Change owner from oid to int4 type(Bruce)
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Fix a bug in the oracle compatibility functions btrim() ltrim() and rtrim()
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Fix for shared invalidation cache overflow(Massimo)
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Prevent file descriptor leaks in failed COPY's(Bruce)
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Fix memory leak in libpgtcl's pg_select(Constantin)
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Fix problems with username/passwords over 8 characters(Tom)
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Fix problems with handling of asynchronous NOTIFY in backend(Tom)
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Fix of many bad system table entries(Tom)
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Enhancements
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------------
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Upgrade ecpg and ecpglib,see src/interfaces/ecpc/ChangeLog(Michael)
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Show the index used in an EXPLAIN(Zeugswetter)
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EXPLAIN invokes rule system and shows plan(s) for rewritten queries(Jan)
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Multi-byte awareness of many data types and functions, via configure(Tatsuo)
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New configure --with-mb option(Tatsuo)
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New initdb --pgencoding option(Tatsuo)
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New createdb -E multibyte option(Tatsuo)
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Select version(); now returns PostgreSQL version(Jeroen)
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Libpq now allows asynchronous clients(Tom)
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Allow cancel from client of backend query(Tom)
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Psql now cancels query with Control-C(Tom)
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Libpq users need not issue dummy queries to get NOTIFY messages(Tom)
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NOTIFY now sends sender's PID, so you can tell whether it was your own(Tom)
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PGresult struct now includes associated error message, if any(Tom)
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Define "tz_hour" and "tz_minute" arguments to date_part()(Thomas)
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Add routines to convert between varchar and bpchar(Thomas)
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Add routines to allow sizing of varchar and bpchar into target columns(Thomas)
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Add bit flags to support timezonehour and minute in data retrieval(Thomas)
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Allow more variations on valid floating point numbers (e.g. ".1", "1e6")(Thomas)
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Fixes for unary minus parsing with leading spaces(Thomas)
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Implement TIMEZONE_HOUR, TIMEZONE_MINUTE per SQL92 specs(Thomas)
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Check for and properly ignore FOREIGN KEY column constraints(Thomas)
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Define USER as synonym for CURRENT_USER per SQL92 specs(Thomas)
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Enable HAVING clause but no fixes elsewhere yet.
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Make "char" type a synonym for "char(1)" (actually implemented as bpchar)(Thomas)
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Save string type if specified for DEFAULT clause handling(Thomas)
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Coerce operations involving different data types(Thomas)
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Allow some index use for columns of different types(Thomas)
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Add capabilities for automatic type conversion(Thomas)
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Cleanups for large objects, so file is truncated on open(Peter)
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Readline cleanups(Tom)
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Allow psql \f \ to make spaces as delimiter(Bruce)
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Pass pg_attribute.atttypmod to the frontend for column field lengths(Tom,Bruce)
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Msql compatibility library in /contrib(Aldrin)
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Remove the requirement that ORDER/GROUP BY clause identifiers be
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included in the target list(David)
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Convert columns to match columns in UNION clauses(Thomas)
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Remove fork()/exec() and only do fork()(Bruce)
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Jdbc cleanups(Peter)
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Show backend status on ps command line(only works on some platforms)(Bruce)
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Pg_hba.conf now has a sameuser option in the database field
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Make lo_unlink take oid param, not int4
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New DISABLE_COMPLEX_MACRO for compilers that can't handle our macros(Bruce)
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Libpgtcl now handles NOTIFY as a Tcl event, need not send dummy queries(Tom)
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libpgtcl cleanups(Tom)
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Add -error option to libpgtcl's pg_result command(Tom)
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New locale patch, see docs/README/locale(Oleg)
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Fix for pg_dump so CONSTRAINT and CHECK syntax is correct(ccb)
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New contrib/lo code for large object orphan removal(Peter)
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New psql command "SET CLIENT_ENCODING TO 'encoding'" for multi-bytes
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feature, see /doc/README.mb(Tatsuo)
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/contrib/noupdate code to revoke update permission on a column
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Libpq can now be compiled on win32(Magnus)
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Add PQsetdbLogin() in libpq
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New 8-byte integer type, checked by configure for OS support(Thomas)
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Better support for quoted table/column names(Thomas)
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Surround table and column names with double-quotes in pg_dump(Thomas)
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PQreset() now works with passwords(Tom)
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Handle case of GROUP BY target list column number out of range(David)
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Allow UNION in subselects
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Add auto-size to screen to \d? commands(Bruce)
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Use UNION to show all \d? results in one query(Bruce)
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Add \d? field search feature(Bruce)
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Pg_dump issues fewer \connect requests(Tom)
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Make pg_dump -z flag work better, document it in manual page(Tom)
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Add HAVING clause with full support for subselects and unions(Stephan)
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Full text indexing routines in contrib/fulltextindex(Maarten)
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Transaction ids now stored in shared memory(Vadim)
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New PGCLIENTENCODING when issuing COPY command(Tatsuo)
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Support for SQL92 syntax "SET NAMES"(Tatsuo)
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Support for LATIN2-5(Tatsuo)
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Add UNICODE regression test case(Tatsuo)
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Lock manager cleanup, new locking modes for LLL(Vadim)
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Allow index use with OR clauses(Bruce)
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Allows "SELECT NULL ORDER BY 1;"
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Explain VERBOSE prints the plan, and now pretty-prints the plan to
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the postmaster log file(Bruce)
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Add Indices display to \d command(Bruce)
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Allow GROUP BY on functions(David)
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New pg_class.relkind for large objects(Bruce)
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New way to send libpq NOTICE messages to a different location(Tom)
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New \w write command to psql(Bruce)
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New /contrib/findoidjoins scans oid columns to find join relationships(Bruce)
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Allow binary-compatible indices to be considered when checking for valid
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indices for restriction clauses containing a constant(Thomas)
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New ISBN/ISSN code in /contrib/isbn_issn
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Allow NOT LIKE, IN, NOT IN, BETWEEN, and NOT BETWEEN constraint(Thomas)
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New rewrite system fixes many problems with rules and views(Jan)
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* Rules on relations work
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* Event qualifications on insert/update/delete work
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* New OLD variable to reference CURRENT, CURRENT will be remove in future
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* Update rules can reference NEW and OLD in rule qualifications/actions
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* Insert/update/delete rules on views work
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* Multiple rule actions are now supported, surrounded by parentheses
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* Regular users can create views/rules on tables they have RULE permits
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* Rules and views inherit the permissions on the creator
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* No rules at the column level
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* No UPDATE NEW/OLD rules
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* New pg_tables, pg_indexes, pg_rules and pg_views system views
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* Only a single action on SELECT rules
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* Total rewrite overhaul, perhaps for 6.5
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* handle subselects
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* handle aggregates on views
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* handle insert into select from view works
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System indexes are now multi-key(Bruce)
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Oidint2, oidint4, and oidname types are removed(Bruce)
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Use system cache for more system table lookups(Bruce)
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New backend programming language PL/pgSQL in backend/pl(Jan)
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New SERIAL data type, auto-creates sequence/index(Thomas)
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Enable assert checking without a recompile(Massimo)
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User lock enhancements(Massimo)
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New setval() command to set sequence value(Massimo)
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Auto-remove unix socket file on startup if no postmaster running(Massimo)
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Conditional trace package(Massimo)
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New UNLISTEN command(Massimo)
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Psql and libpq now compile under win32 using win32.mak(Magnus)
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Lo_read no longer stores trailing NULL(Bruce)
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Identifiers are now truncated to 31 characters internally(Bruce)
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Createuser options now availble on the command line
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Code for 64-bit integer supported added, configure tested, int8 type(Thomas)
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Prevent file descriptor leaf from failed COPY(Bruce)
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New pg_upgrade command(Bruce)
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Updated /contrib directories(Massimo)
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New CREATE TABLE DEFAULT VALUES statement available(Thomas)
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New INSERT INTO TABLE DEFAULT VALUES statement available(Thomas)
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New DECLARE and FETCH feature(Thomas)
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libpq's internal structures now not exported(Tom)
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Allow up to 8 key indexes(Bruce)
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Remove ARCHIVE keyword, that is no longer used(Thomas)
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pg_dump -n flag to supress quotes around indentifiers
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disable system columns for views(Jan)
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new INET and CIDR types for network addresses(TomH, Paul)
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no more double quotes in psql output
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pg_dump now dumps views(Terry)
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new SET QUERY_LIMIT(Tatsuo,Jan)
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Source Tree Changes
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-------------------
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/contrib cleanup(Jun)
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Inline some small functions called for every row(Bruce)
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Alpha/linux fixes
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Hp/UX cleanups(Tom)
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Multi-byte regression tests(Soonmyung.)
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Remove --disabled options from configure
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Define PGDOC to use POSTGRESDIR by default
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Make regression optional
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Remove extra braces code to pgindent(Bruce)
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Add bsdi shared library support(Bruce)
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New --without-CXX support configure option(Brook)
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New FAQ_CVS
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Update backend flowchart in tools/backend(Bruce)
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Change atttypmod from int16 to int32(Bruce, Tom)
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Getrusage() fix for platforms that do not have it(Tom)
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Add PQconnectdb, PGUSER, PGPASSWORD to libpq man page
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NS32K platform fixes(Phil Nelson, John Buller)
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Sco 7/UnixWare 2.x fixes(Billy,others)
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Sparc/Solaris 2.5 fixes(Ryan)
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Pgbuiltin.3 is obsolete, move to doc files(Thomas)
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Even more documention(Thomas)
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Nextstep support(Jacek)
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Aix support(David)
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pginterface manual page(Bruce)
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shared libraries all have version numbers
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merged all OS-specific shared library defines into one file
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smarter TCL/TK configuration checking(Billy)
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smarter perl configuration(Brook)
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configure uses supplied install-sh if no install script found(Tom)
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new Makefile.shlib for shared library configuration(Tom)
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CHANGES IN THE 6.4.1 RELEASE
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----------------------------
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Add pg_dump -N flag to force double quotes around identifiers. This is
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the default.
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Fix for NOT in where clause causing crash(Bruce)
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EXPLAIN VERBOSE coredump fix(Vadim)
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Fix shared-library problems on Linux
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Fix test for table existance to allow mixed-case and whitespace in
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the table name
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Fix a couple of pg_dump bugs
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Fix for creating tables with constraints when table name is mixed-case(Billy)
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Configure matches template/.similar entries better(Tom)
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Change builtin function names from SPI_* to spi_*
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OR WHERE clause fix(Vadim)
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Fixes for mixed-case table names(Billy)
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contrib/linux/postgres.init.csh/sh fix
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libpq memory overrun fix
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SunOS fixes(Tom)
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Change exp() behavior to generate error on underflow
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pg_dump fixes for memory leak, inheritance constraints, layout change
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update pgaccess to 0.93
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Fix prototype for 64-bit platforms
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Multi-byte fixes(Tatsuo)
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New ecpg man page
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Fix memory overruns(Tatsuo)
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Fix for lo_import() crash(Bruce)
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Better search for install program(Tom)
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Timezone fixes(Tom)
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HPUX fixes(Tom)
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Use implicit type coersion for matching DEFAULT values
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Add routines to help with single-byte (internal) character type(Thomas)
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Compilation of libpq for Win32 fixes(Magnus)
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Upgrade to PyGreSQL 2.2(D'Arcy)
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