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Diffstat (limited to 'doc/TODO')
| -rw-r--r-- | doc/TODO | 504 |
1 files changed, 205 insertions, 299 deletions
@@ -1,24 +1,27 @@ TODO list for PostgreSQL ======================== -Last updated: Tue Apr 7 16:56:24 EDT 1998 +Last updated: Sat Aug 29 17:43:10 EDT 1998 Current maintainer: Bruce Momjian (maillist@candle.pha.pa.us) The most recent version of this document can be viewed at the PostgreSQL WWW site, http://www.postgreSQL.org. -THE CHANGES FOR 6.3 APPEAR AT THE END OF THIS DOCUMENT +THE CHANGES FOR 6.4 APPEAR AT THE END OF THIS DOCUMENT A dash(-) marks changes to be in the next release. Developers who have claimed items are: ------------------------------------- + * Billy is Billy G. Allie <Bill.Allie@mug.org> + * Brook is Brook Milligan <brook@trillium.NMSU.Edu> * Bruce is Bruce Momjian<maillist@candle.pha.pa.us> * Bryan is Bryan Henderson<bryanh@giraffe.netgate.net> * D'Arcy is D'Arcy J.M. Cain <darcy@druid.net> * Dan is Dan McGuirk <mcguirk@indirect.com> * Daniel is Daniel Kalchev <daniel@digsys.bg> * Darren is Darren King <darrenk@insightdist.com> + * David is David Hartwig <daveh@insightdist.com> * Edmund is Edmund Mergl <E.Mergl@bawue.de> * Erich Stamberger <eberger@gewi.kfunigraz.ac.at> * Gerhard is Gerhard Reithofer <gerhardr@tech-edv.co.at> @@ -31,40 +34,42 @@ Developers who have claimed items are: * Maarten is Maarten Boekhold <maartenb@dutepp0.et.tudelft.nl> * Marc is Marc Fournier <scrappy@hub.org> * Martin is Martin S. Utesch <utesch@aut.tu-freiberg.de> + * Massimo Dal Zotto <dz@cs.unitn.it> * Michael is Michael Meskes <meskes@debian.org> * Oleg is Oleg Bartunov <oleg@sai.msu.su> * Paul is Paul M. Aoki <aoki@CS.Berkeley.EDU> * Patrick is Patrick van Kleef <pvk@pobox.com> - * Peter is Peter T Mount <psqlhack@maidast.demon.co.uk> + * Peter is Peter T Mount <peter@retep.org.uk> * Phil is Phil Thompson <phil@river-bank.demon.co.uk> * Raymond is Raymond Toy <toy@rtp.ericsson.se> + * Ryan is Ryan Kirkpatrick <rkirkpat@nag.cs.colorado.edu> * Soo-Ho Ok <shok@detc.dongeui-tc.ac.kr> * Stefan Simkovics <ssimkovi@rainbow.studorg.tuwien.ac.at> * Sven is Sven Verdoolaege <skimo@breughel.ufsia.ac.be> * Tatsuo is Tatsuo Ishii <t-ishii@sra.co.jp> * Thomas is Thomas Lockhart <tgl@mythos.jpl.nasa.gov> * Todd is Todd Brandys is <brandys@eng3.hep.uiuc.edu> + * TomH is Tom I Helbekkmo <tih@Hamartun.Priv.NO> * Vadim is "Vadim B. Mikheev" <vadim@sable.krasnoyarsk.su> * Vivek is Vivek Khera <khera@kci.kciLink.com> -Additional 6.3 developers include: +Additional 6.4 developers include: --------------------------------- - * Billy is Billy G. Allie <Bill.Allie@mug.org> - * Brook is Brook Milligan <brook@trillium.NMSU.Edu> - * James is James Hughes <jamesh@interpath.com> - * Jeroen is Jeroen van Vianen <jeroenv@design.nl> - * Matt is Matt Maycock <maycock@intelliquest.com> - * Ryan is Ryan Kirkpatrick <rkirkpat@nag.cs.colorado.edu> - * TomH is Tom I Helbekkmo <tih@Hamartun.Priv.NO> - * TomS is Tom Szybist - * Travis is Travis Melhiser <melhiser@viper.co.union.nc.us> + * Jun Kuwamura <juk@rccm.co.jp> + * Zeugswetter Andreas SARZ <Andreas.Zeugswetter@telecom.at> + * Soonmyung. Hong <hong@lunaris.hanmesoft.co.kr> + * Anders Hammarquist <iko@netg.se> + * Jeroen van Vianen <jeroenv@design.nl> + * Aldrin L. <aldrin@americasnet.com> + * Pascal ANDRE <andre@via.ecp.fr> + * Magnus Hagander <mha@edu.sollentuna.se> RELIABILITY ----------- * Overhaul mdmgr/smgr to fix double unlinking and double opens, cleanup * Overhaul bufmgr/lockmgr/transaction manager * Remove EXTEND? -* CREATE VIEW requires super-user priviledge +* -CREATE VIEW requires super-user priviledge * Can lo_export()/lo_import() read/write anywhere, causing a security problem? * Tables that start with xinv confused to be large objects * Two and three dimmensional arrays display improperly, missing {} @@ -73,7 +78,7 @@ RELIABILITY * SELECT * FROM table WHERE int4_column = '1' fails * SELECT a[1] FROM test fails, it needs test.a[1] * UPDATE table SET table.value = 3 fails -* Make pg_dump preserve inheritance column order, do non-inherits first +* -Make pg_dump preserve inheritance column order, do non-inherits first * User who can create databases can modify pg_database table * optimizer memory exhaustion with many OR's * elog() does not free all its memory(Jan) @@ -81,6 +86,10 @@ RELIABILITY * disallow inherited columns with the same name as new columns * recover or force failure when disk space is exhausted * default char() value not to full length crashes server on some OS's +* allow UPDATE using aggregate to affect all rows, not just one +* computations in views fail: + create view test as select usesysid * usesysid from pg_shadow; +* select upper(usename), count(usesysid) from pg_shadow group by 1 fails ENHANCEMENTS ------------ @@ -92,36 +101,37 @@ ENHANCEMENTS * Add full ANSI SQL capabilities * -Implement HAVING clause(Stephan) * add OUTER joins, left and right (Thomas) - * make VIEWs updateable where possible + * -make VIEWs updateable where possible(use Rules) * add INTERSECTS, SUBTRACTS(Stephan) - * add temporary tables(Bruce) + * add temporary tables * add sql3 recursive unions * add the concept of dataspaces * add DECIMAL, NUMERIC, DOUBLE PRECISION, BIT, BIT VARYING * NCHAR (as distinguished from ordinary varchar), * DOMAIN capability * Allow compression of large fields or a compressed field type -* Fix the rules system(Jan?,Soo-Ho) - * robust - * making INSTEAD rules work +* 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 - * Fix large object mapping scheme, own reltype + * Fix large object mapping scheme, own reltype(Peter) + * Allow large text type to use large objects(Peter) * not to stuff everything as files in a single directory * Fix large object memory leaks + * delete orphaned large objects * Better interface for adding to pg_group * Make MONEY/DECIMAL have a defined precision * Fix tables >2G, or report error when 2G size reached (fix lseek()/off_t, mdextend()/RELSEG_SIZE) -* Threaded version of the server or libpq -* Allow libpq to cancel query requests +* -Allow libpq to cancel query requests * Add REGEX internationalization * allow row re-use without vacuum, maybe?(Vadim) -* Remove restriction that ORDER BY field must be in SELECT list +* -Remove restriction that ORDER BY field must be in SELECT list(David) * Add word index for text fields, maybe with trigrams, i.e.: - * ' (cat | dog) & ! fox ' meaning text has cat or dog, but not fox + * ' (cat | dog) & ! fox ' meaning text has cat aor dog, but not fox * Populate backend status area and write program to dump status data * Add ALTER TABLE DROP COLUMN feature * Allow INSERT INTO ... SELECT to convert column types @@ -146,6 +156,7 @@ ENHANCEMENTS * Allow cursors to be DECLAREd/OPENed/CLOSEed outside transactions * Allow installation data block size and max tuple size configuration(Darren) * Allow views on a UNION +* Allow DISTINCT on view * Allow views of aggregate columns * Allow variable block sizes(Darren) * System tables are now more update-able from SQL(Jan) @@ -161,19 +172,33 @@ ENHANCEMENTS * Granting permissions to another user looses permissions for the owner * Allow queries across multiple databases * Add replication of distributed databases +* Allow table destruction/alter to be rolled back +* Add pg_attribute.atttypmod/Resdom->restypmod to PGresult structure +* Generate error on CREATE OPERATOR of ~~, ~ and and ~* +* Allow constraint NULL just as we honor NOT NULL +* Add version number in startup banners for psql and postmaster +* Restructure storing of GRANT permission information to allow +-= +* allow psql \copy to allow delimiters +* allow international error message support and add error codes +* allow ORDER BY a function(David) +* allow usernames with dashes(GRANT fails) +* 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 +* CREATE VIEW myview (name) AS SELECT lname FROM wages fails PERFORMANCE ----------- -* Use indexes in ORDER BY, min(), max()(Costin Oproiu) +* Use indexes in ORDER BY for restrictive data sets, min(), max() * Optimizing disjunctive queries -* Fix bushy-plans (Martin) +* Fix bushy-plans * Other optimizer bugs * Prevent fsync in SELECT-only queries * 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) +* -Allow indexes to be used with OR clauses(Bruce) * update pg_statistic table to remove operator column * make index creation use psort code, because it is now faster(Vadim) * remove fork()/exec() of backend and make it just fork() @@ -185,6 +210,9 @@ PERFORMANCE * Use spin locks only on multi-CPU systems, yield CPU instead * 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 DOCUMENTATION ------------- @@ -198,284 +226,162 @@ DOCUMENTATION ============================================================================= - -CHANGES IN THE 6.3.2 PATCH --------------------------- -configure detection improvements for tcl/tk(Brook Milligan, Alvin) -Manual page improvements(Bruce) -BETWEEN and LIKE fix(Thomas) -fix for psql \connect used by pg_dump(Oliver Elphick) -New odbc driver -pgaccess, version 0.86 -qsort removed, now uses libc version, cleanups(Jeroen) -fix for buffer over-runs detected(Maurice Gittens) -fix for buffer overrun in libpgtcl(Randy Kunkee) -fix for UNION with DISTINCT or ORDER BY(Bruce) -gettimeofday configure check(Doug Winterburn) -Fix "indexes not used" bug(Vadim) -docs additions(Thomas) -Fix for backend memory leak(Bruce) -libreadline cleanup(Erwan MAS) -Remove DISTDIR(Bruce) -Makefile dependency cleanup(Jeroen van Vianen) -ASSERT fixes(Bruce) - - -CHANGES IN THE 6.3.1 PATCH --------------------------- -ecpg cleanup/fixes, now version 1.1(Michael Meskes) -pg_user cleanup(Bruce) -large object fix for pg_dump and tclsh(alvin@camberlo.demon.co.uk) -LIKE fix for multiple adjacent underscores -LIKE/BETWEEN fix for having function call as target(Thomas) -fix for redefining builtin functions(Thomas) -ultrix4 cleanup -upgrade to pg_access 0.83 -updated CLUSTER manual page -multi-byte character set support, see doc/README.mb(Tatsuo) -configure --with-pgport fix -pg_ident fix -big-endian fix for backend communications(Kataoka) -SUBSTR() and substring() fix(Jan) -several jdbc fixes(Peter) -libpgtcl improvements, see libptcl/README(Randy Kunkee) -Fix for "Datasize = 0" error(Vadim) -Prevent \do from wrapping(Bruce) -Remove duplicate Russian character set entries -Sunos4 cleanup -Allow optional TABLE keyword in LOCK and SELECT INTO(Thomas) -CREATE SEQUENCE options to allow a negative integer(Thomas) -Add "PASSWORD" as an allowed column identifier(Thomas) -Add checks for UNION target fields(Bruce) -Fix Alpha port(Dwayne Bailey) -Fix for text arrays containing quotes(Doug Gibson) -Solaris compile fix(Albert Chin-A-Young) -Better identify tcl and tk libs and includes(Bruce) - - - -CHANGES IN THE 6.3 RELEASE +CHANGES IN THE 6.4 RELEASE -------------------------- -There are some general 6.3 issues that I want to mention. These are -only the big items that can not be described in one sentence. - -First, we now have subselects. Now that we have them, I would like to -mention that without subselects, SQL is a very limited language. -Subselects are a major feature, and you should review your code for -places where subselects provide a better solution for your queries. I -think you will find that there are more uses for subselects than you may -think. Vadim has put us on the big SQL map with subselects, and fully -functional ones too. The only thing you can't do with subselects is to -use them in the target list. - -Second, 6.3 uses unix domain sockets rather than TCP/IP by default. To -enable connections from other machines, you have to use the new -postmaster -i option, and of course edit pg_hba.conf. Also, for this -reason, the format of pg_hba.conf has changed. - -Third, char() fields will now allow faster access than varchar() or -text. Specifically, the text and varchar() have a penalty for access to -any columns after the first column of this type. char() used to also -have this access penalty, but it no longer does. This may suggest that -you redesign some of your tables, especially if you have short character -columns that you have defined as varchar() or text. This and other -changes make 6.3 even faster than earlier releases. - -We now have passwords definable independent of any Unix file. There are -new SQL USER commands. See the pg_hba.conf manual page for more -information. There is a new table, pg_shadow, which is used to store -user information and user passwords, and it by default only SELECT-able -by the postgres super-user. pg_user is now a view of pg_shadow, and is -SELECT-able by PUBLIC. You should keep using pg_user in your -application without changes. - -User-created tables now no longer have SELECT permission to PUBLIC by -default. This was done because the ANSI standard requires it. You can -of course GRANT any permissions you want after the table is created. -System tables continue to be SELECT-able by PUBLIC. - -We also have real deadlock detection code. No more sixty-second -timeouts. And the new locking code implements a FIFO better, so there -should be less resource starvation during heavy use. - -Many complaints have been made about inadequate documenation in previous -releases. Thomas has put much effort into many new manuals for this -release. Check out the /doc directory. - -For performance reasons, time travel is gone, but can be implemented -using triggers (see pgsql/contrib/spi/README). Please check out the new -\d command for types, operators, etc. Also, views have their own -permissions now, not based on the underlying tables, so permissions on -them have to be set separately. Check /pgsql/interfaces for some new -ways to talk to PostgreSQL. - -This is the first release that really required an explaination for -existing users. In many ways, this was necessary because the new -release removes many limitations, and the work-arounds people were using -are no longer needed. - Bug Fixes --------- -Fix binary cursors broken by MOVE implementation(Vadim) -Fix for tcl library crash(Jan) -Fix for array handling, from Gerhard Hintermayer -Fix acl error, and remove duplicate pqtrace(Bruce) -Fix psql \e for empty file(Bruce) -Fix for textcat on varchar() fields(Bruce) -Fix for DBT Sendproc (Zeugswetter Andres) -Fix vacuum analyze syntax problem(Bruce) -Fix for international identifiers(Tatsuo) -Fix aggregates on inherited tables(Bruce) -Fix substr() for out-of-bounds data -Fix for select 1=1 or 2=2, select 1=1 and 2=2, and select sum(2+2)(Bruce) -Fix notty output to show status result. -q option still turns it off(Bruce) -Fix for count(*), aggs with views and multiple tables and sum(3)(Bruce) -Fix cluster(Bruce) -Fix for PQtrace start/stop several times(Bruce) -Fix a variety of locking problems like newer lock waiters getting - lock before older waiters, and having readlock people not share - locks if a writer is waiting for a lock, and waiting writers not - getting priority over waiting readers(Bruce) -Fix crashes in psql when executing queries from external files(James) -Fix problem with multiple order by columns, with the first one having - NULL values(Jeroen) -Use correct hash table support functions for float8 and int4(Thomas) -Re-enable JOIN= option in CREATE OPERATOR statement (Thomas) -Change precedence for boolean operators to match expected behavior(Thomas) -Generate elog(ERROR) on over-large integer(Bruce) -Allow multiple-argument functions in constraint clauses(Thomas) -Check boolean input literals for 'true','false','yes','no','1','0' - and throw elog(ERROR) if unrecognized(Thomas) -Major large objects fix -Fix for GROUP BY showing duplicates(Vadim) -Fix for index scans in MergeJion(Vadim) +Fix for a tiny memory leak in PQsetdb/PQfinish(Bryan) +Remove char2-16 data types, use char/varchar(Darren) +Pqfn not handles a NOTICE message(Anders) +Short-term locks now retry locking at random times(David) +Fix up "ISO-style" timespan decoding and encoding(Thomas) +Fix problem with table drop after rollback of transaction(Vadim) +Change error message and remove non-functional update message(Vadim) +Fix for COPY array checking +Fix for SELECT 1 UNION SELECT NULL +Fix for buffer leaks in large object calls(Pascal) +Change owner from oid to int4 type(Bruce) +Fix a bug in the oracle compatibility functions btrim() ltrim() and rtrim() +Fix for usernames longer than eight characters(Tom) +Fix for shared invalidation cache overflow(Massimo) +Prevent file descriptor leaks in failed COPY's(Bruce) Enhancements ------------ -Subselects with EXISTS, IN, ALL, ANY keywords (Vadim, Bruce, Thomas) -New User Manual(Thomas, others) -Speedup by inlining some frequently-called functions -Real deadlock detection, no more timeouts(Bruce) -Add SQL92 "constants" CURRENT_DATE, CURRENT_TIME, CURRENT_TIMESTAMP, - CURRENT_USER(Thomas) -Modify constraint syntax to be SQL92-compliant(Thomas) -Implement SQL92 PRIMARY KEY and UNIQUE clauses using indices(Thomas) -Recognize SQL92 syntax for FOREIGN KEY. Throw elog notice(Thomas) -Allow NOT NULL UNIQUE constraint clause (each allowed separately before)(Thomas) -Allow Postgres-style casting ("::") of non-constants(Thomas) -Add support for SQL3 TRUE and FALSE boolean constants(Thomas) -Support SQL92 syntax for IS TRUE/IS FALSE/IS NOT TRUE/IS NOT FALSE(Thomas) -Allow shorter strings for boolean literals (e.g. "t", "tr", "tru")(Thomas) -Allow SQL92 delimited identifiers(Thomas) -Implement SQL92 binary and hexadecimal string decoding (b'10' and x'1F')(Thomas) -Support SQL92 syntax for type coercion of literal strings - (e.g. "DATETIME 'now'")(Thomas) -Add conversions for int2, int4, and OID types to and from text(Thomas) -Use shared lock when building indices(Vadim) -Free memory allocated for an user query inside transaction block after - this query is done, was turned off in <= 6.2.1(Vadim) -New SQL statement CREATE PROCEDURAL LANGUAGE(Jan) -New PostgreSQL Procedural Language (PL) backend interface(Jan) -Rename pg_dump -H option to -h(Bruce) -Add Java support for passwords, European dates(Peter) -Use indices for LIKE and ~, !~ operations(Bruce) -Add hash functions for datetime and timespan(Thomas) -Time Travel removed(Vadim, Bruce) -Add paging for \d and \z, and fix \i(Bruce) -Add Unix domain socket support to backend and to frontend library(Goran) -Implement CREATE DATABASE/WITH LOCATION and initlocation utility(Thomas) -Allow more SQL92 and/or Postgres reserved words as column identifiers(Thomas) -Augment support for SQL92 SET TIME ZONE...(Thomas) -SET/SHOW/RESET TIME ZONE uses TZ backend environment variable(Thomas) -Implement SET keyword = DEFAULT and SET TIME ZONE DEFAULT(Thomas) -Enable SET TIME ZONE using TZ environment variable(Thomas) -Add PGDATESTYLE environment variable to frontend and backend initialization(Thomas) -Add PGTZ, PGCOSTHEAP, PGCOSTINDEX, PGRPLANS, PGGEQO - frontend library initialization environment variables(Thomas) -Regression tests time zone automatically set with "setenv PGTZ PST8PDT"(Thomas) -Add pg_description table for info on tables, columns, operators, types, and - aggregates(Bruce) -Increase 16 char limit on system table/index names to 32 characters(Bruce) -Rename system indices(Bruce) -Add 'GERMAN' option to SET DATESTYLE(Thomas) -Define an "ISO-style" timespan output format with "hh:mm:ss" fields(Thomas) -Allow fractional values for delta times (e.g. '2.5 days')(Thomas) -Validate numeric input more carefully for delta times(Thomas) -Implement day of year as possible input to date_part()(Thomas) -Define timespan_finite() and text_timespan() functions(Thomas) -Remove archive stuff(Bruce) -Allow for a pg_password authentication database that is separate from - the system password file(Todd) -Dump ACLs, GRANT, REVOKE permissions(Matt) -Define text, varchar, and bpchar string length functions(Thomas) -Fix Query handling for inheritance, and cost computations(Bruce) -Implement CREATE TABLE/AS SELECT (alternative to SELECT/INTO)(Thomas) -Allow NOT, IS NULL, IS NOT NULL in constraints(Thomas) -Implement UNIONs for SELECT(Bruce) -Add UNION, GROUP, DISTINCT to INSERT(Bruce) -varchar() stores only necessary bytes on disk(Bruce) -Fix for BLOBs(Peter) -Mega-Patch for JDBC...see README_6.3 for list of changes(Peter) -Remove unused "option" from PQconnectdb() -New LOCK command and lock manual page describing deadlocks(Bruce) -Add new psql \da, \dd, \df, \do, \dS, and \dT commands(Bruce) -Enhance psql \z to show sequences(Bruce) -Show NOT NULL and DEFAULT in psql \d table(Bruce) -New psql .psqlrc file startup(Andrew) -Modify sample startup script in contrib/linux to show syslog(Thomas) -New types for IP and MAC addresses in contrib/ip_and_mac(TomH) -Unix system time conversions with date/time types in contrib/unixdate(Thomas) -Update of contrib stuff(Massimo) -Add Unix socket support to DBD::Pg(Goran) -New python interface (PyGreSQL 2.0)(D'Arcy) -New frontend/backend protocol has a version number, network byte order(Phil) -Security features in pg_hba.conf enhanced and documented, many cleanups(Phil) -CHAR() now faster access than VARCHAR() or TEXT -ecpg embedded SQL preprocessor -Reduce system column overhead(Vadmin) -Remove pg_time table(Vadim) -Add pg_type attribute to identify types that need length (bpchar, varchar) -Add report of offending line when COPY command fails -Allow VIEW permissions to be set separately from the underlying tables. - For security, use GRANT/REVOKE on views as appropriate(Jan) -Tables now have no default GRANT SELECT TO PUBLIC. You must - explicitly grant such permissions. -Clean up tutorial examples(Darren) +Upgrade ECPG to 2.0, see src/interfaces/ecpc/ChangeLog(Michael) +Show the index used in an explain(Zeugswetter) +Multi-byte awareness of many data data types and functions(Tatsuo) +New configure --with-mb option(Tatsuo) +New initdb --pgencoding option(Tatsuo) +New createdb -E multibyte option(Tatsuo) +Select version(); now returns PostgreSQL version(Jeroen) +Libpq now allows asynchronous clients(Tom) +Allow cancel from client of backend query(Tom) +Psql now cancels query with Control-C(Tom) +Define "tz_hour" and "tz_minute" arguments to date_part()(Thomas) +Add routines to convert between varchar and bpchar(Thomas) +Add routines to allow sizing of varchar and bpchar into target columns(Thomas) +Add bit flags to support timezonehour and minute in data retrieval(Thomas) +Allow more variations on valid floating point numbers (e.g. ".1", "1e6")(Thomas) +Fixes for unary minus parsing with leading spaces(Thomas) +Implement TIMEZONE_HOUR, TIMEZONE_MINUTE per SQL92 specs(Thomas) +Check for and properly ignore FOREIGN KEY column constraints(Thomas) +Define USER as synonym for CURRENT_USER per SQL92 specs(Thomas) +Enable HAVING clause but no fixes elsewhere yet. +Make "char" type a synonym for "char(1)" (actually implemented as bpchar)(Thomas) +Save string type if specified for DEFAULT clause handling(Thomas) +Coerce operations involving different data types(Thomas) +Allow some index use for columns of different types(Thomas) +Add capabilities for automatic type conversion(Thomas) +Cleanups for large objects, so file is truncated on open(Peter) +Readline cleanups(Tom) +Allow psql \f \ to make spaces as delimiter(Bruce) +Pass pg_attribute.atttypmod to the frontend for column field lengths(Tom,Bruce) +Msql compatibility library in /contrib(Aldrin) +Remove the requirement that ORDER/GROUP BY clause identifiers be +included in the target list(David) +Convert columns to match columns in UNION clauses(Thomas) +Remove fork()/exec() and only do fork()(Bruce) +Jdbc cleanups(Peter) +Show backend status on ps command line(only works on some platforms)(Bruce) +Pg_hba.conf now has a sameuser option in the database field +Make lo_unlink take oid param, not int4 +New DISABLE_COMPLEX_MACRO for compilers that can't handle our macros(Bruce) +Libpgtcl now gets async notifies from libpq(Tom) +New locale patch, see docs/README/locale(Oleg) +Fix for pg_dump so CONSTRAINT and CHECK syntax is correct(ccb) +New contrib/lo code for large object orphan removal(Peter) +New psql command "SET CLIENT_ENCODING TO 'encoding'" for multi-bytes +feature, see /doc/README.mb(Tatsuo) +/contrib/noupdate code to revoke update permission on a column +Libpq can now be compiled on win32(Magnus) +Add PQsetdbLogin() in libpq +Two styles we agreed upon for database descriptors(Thomas) +New 8-byte integer type, checked by configure for OS support(Thomas) +Surround table and column names with double-quotes(Thomas) in generated +sql code to preserve case (SQL92 syntax)(Thomas) +New libpqrequestCancel(Tom) +PQreset() now works with passwords(Tom) +Handle case of GROUP BY target list column number out of range(David) +Allow UNION in subselects +Add auto-size to screen to \d? commands(Bruce) +Use UNION to show all \d? results in one query(Bruce) +Add \d? field search feature(Bruce) +Pg_dump issues fewer \connect requests(Tom) +Document pg_dump -z flag in manual page(Tom) +Add HAVING clause with full support for subselects and unions(Stephan) +Full text indexing routines in contrib/fulltextindex(Marteen) +Transaction ids now stored in shared memory(Vadim) +New PGCLIENTENCODING when issuing COPY command(Tatsuo) +Support for SQL92 syntax "SET NAMES"(Tatsuo) +Support for LATIN2-5(Tatsuo) +Add UNICODE regression test case(Tatsuo) +Lock manager cleanup, new locking modes for LLL(Vadim) +Allow index use with OR clauses(Bruce) +Allows "SELECT NULL ORDER BY 1;" +Explain VERBOSE prints the plan, and now pretty-prints the plan to +the postmaster log file(Bruce) +Add Indices display to \d command(Bruce) +Allow GROUP BY on functions(David) +New pg_class.relkind for large objects(Bruce) +New way to send libpq NOTICE messages to a different location(Tom) +New \w write command to psql(Bruce) +New /contrib/findoidjoins scans oid columns to find join relationships(Bruce) +Allow binary-compatible indices to be considered when checking for valid +indices for restriction clauses containing a constant(Thomas) +New ISBN/ISSN code in /contrib/isbn_issn +Allow NOT LIKE, IN, NOT IN, BETWEEN, and NOT BETWEEN constraint(Thomas) +New rewrite system fixes many problems with rules and views(Jan) + * Rules on relations work + * Event qualifications on insert/update/delete work + * New OLD variable to reference CURRENT, CURRENT will be remove in future + * Update rules can reference NEW and OLD in rule qualifications/actions + * Insert/update/delete rules on views work + * Multiple rule actions are now supported, surrounded by parentheses + * Regular users can create views/rules on tables they have RULE permits + * Rules and views inherit the permissions on the creator + * No rules at the column level + * No UPDATE NEW/OLD rules + * New pg_rule and pg_view system views + * Only a single action on SELECT rules + * Total rewrite overhaul, perhaps for 6.5 + +System indexes are now multi-key(Bruce) +Oidint2, oidint4, and oidname types are removed(Bruce) +Use system cache for more system table lookups(Bruce) +New backend programming language PL/pgSQL in backend/pl(Jan) +New SERIAL data type, auto-creates sequence/index(Thomas) +Enable assert checking without a recompile(Massimo) +User lock enhancements(Massimo) +New setval() command to set sequence value(Massimo) +Auto-remove unix socket file on startup if no postmaster running(Massimo) +Conditional trace package(Massimo) +New UNLISTEN command(Massimo) +Psql now compiles under win32 using win32.mak(Magnus) +Lo_read no longer stores trailing NULL(Bruce) +Identifiers are now truncated to 31 characters internally(Bruce) Source Tree Changes ------------------- -Add new html development tools, and flow chart in /tools/backend -Fix for SCO compiles -Stratus computer port "Gillies, Robert" <GilliesR@Nichols.com> -Added support for shlib for BSD44_derived & i386_solaris -Make configure more automated(Brook) -Add script to check regression test results -Break parser functions into smaller files, group together(Bruce) -Rename heap_create to heap_create_and_catalog, rename heap_creatr - to heap_create()(Bruce) -Sparc/Linux patch for locking(TomS) -Remove PORTNAME and reorganize port-specific stuff(Marc) -Add optimizer README file(Bruce) -Remove some recursion in optimizer and clean up some code there(Bruce) -Fix for NetBSD locking(Henry) -Fix for libptcl make(Tatsuo) -AIX patch(Darren) -Change IS TRUE, IS FALSE, ... to expressions using "=" rather than - function calls to istrue() or isfalse() to allow optimization(Thomas) -Various fixes NetBSD/Sparc related(TomH) -Alpha linux locking(Travis,Ryan) -Change elog(WARN) to elog(ERROR)(Bruce) -FAQ for FreeBSD(Marc) -Bring in the PostODBC source tree as part of our standard distribution(Marc) -A minor patch for HP/UX 10 vs 9(Stan) -New pg_attribute.atttypmod for type-specific info like varchar length(Bruce) -Unixware patches(Billy) -New i386 'lock' for spin lock asm(Billy) -Support for multiplexed backends is removed -Start an OpenBSD port -Start an AUX port -Start a Cygnus port -Add string functions to regression suite(Thomas) -Expand a few function names formerly truncated to 16 characters(Thomas) -Remove un-needed malloc() calls and replace with palloc()(Bruce) +/contrib cleanup(Jun) +Inline some small functions called for every row(Bruce) +Alpha/linux fixes +Hp/UX cleanups(Tom) +Multi-byte regression tests(Soonmyung.) +Remove --disabled options from configure +Define PGDOC to use POSTGRESDIR by default +Make regression optional +Remove extra braces code to pgindent(Bruce) +Add bsdi shared library support(Bruce) +New --without-CXX support configure option(Brook) +New FAQ_CVS +Update backend flowchart in tools/backend(Bruce) +Change atttypmod from int16 to int32(Bruce, Tom) +Getrusage() fix for platforms that do not have it(Tom) +Add PGUSER to libpq man page +Ns32k platform fixes(Phil Nelson) +Sco 7/UnixWare 2.x fixes(Billy,others) +Sparc/Solaris 2.5 fixes(Ryan) +Pgbuiltin.3 is obsolete, move to doc files(Thomas) +Even more documention(Thomas) |