634 lines
27 KiB
Plaintext
634 lines
27 KiB
Plaintext
PostgreSQL 6.2beta Sat Sep 13 21:53:27 EDT 1997
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-------------------------------------------------------------
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A dump/restore is required for those wishing to migrate data from
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previous releases of PostgreSQL.
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Bug Fixes
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---------
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Fix problems with pg_dump for iheritance, sequences, archive tables(Bruce)
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Fix compile errors on overflow due to shifts, unsigned, and bad prototypes
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from Solaris, (Diab Jerius)
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Fix bugs in line arithmetic which resulted in bad intersection
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calculations(Thomas)
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Check explicitly for intersections at endpoints to avoid rounding
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ugliness(Thomas)
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Catch non-functional delete attempts(Vadim)
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Change time function names to be more consistent(Michael Reifenberg)
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Check for zero divides(Michael Reifenberg)
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Fix very old bug which made tuples changed/inserted by a commnd
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visible to command itself (so we had multiple update of
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updated tuples, etc).(Vadim)
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Fix for SELECT null, 'fail' FROM pg_am (Patrick)
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SELECT NULL as EMPTY_FIELD now allowed(Patrick)
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Enhancements
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------------
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psql: Add PAGER for \h and \?,\C fix
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Allow hh:mm:ss time entry for timespan/reltime types(Thomas)
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Add center() routines for lseg, path, polygon(Thomas)
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Add distance() routines for circle-polygon, polygon-polygon(Thomas)
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Check explicitly for points and polygons contained within polygons
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using an axis-crossing algorithm. (Thomas)
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Add routine to convert circle-box(Thomas)
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Merge conflicting operators for different geometric data types
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(the point type especially had operators which were
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weirdly dissimilar from the other types)(Thomas)
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Replace distance operator "<===>" with "<->"(Thomas)
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Replace "above" operator "!^" with ">^"
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and "below" operator "!|" with "<^"(Thomas)
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Add routines for text trimming on both ends, substring, and string position(Thomas)
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Add new operators and functions for geometric types(Thomas)
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Add text concatenation operator and function(Thomas)
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Add text trim function for SQL92 support(Thomas)
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Added conversion routines circle(box) and poly(circle)(Thomas)
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Use better routines from geometry library(Thomas)
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Allow use parameters in target list having aggregates in functions(Vadim)
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Allow internal sorts to be stored in memory rather than in files(Bruce)
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Added JDBC driver as an interface(Adrian & Peter)
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Reduce open() calls(Bruce)
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NOT NULL implementation (Robson Paniago de Miranda).
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CHECK/DEFAULT syntax(Vadim)
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Syntax for [CONSTRAINT name] CHECK ...(Vadim)
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Allow functions and operators on internally-identical types to succeed(Bruce)
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Speed up backend startup after profiling analysis(Bruce)
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pg_password utility
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Number of tuples inserted/affected by INSERT/UPDATE/DELETE...(Vadim)
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SPI manager(Vadim)
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Triggers (Vadim)
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Add detection and warnings for UNION and HAVING clauses(Thomas)
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Add more reserved words, mostly for SQL92 compliance(Thomas)
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Include reserved words for string handling, outer joins, and unions(Thomas)
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Implement extended comments ("/* ... */") using exclusive states(Thomas)
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Modify definitions of operators to remove some restrictions on characters
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and character order(Thomas)
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Fix for psql pager when no tty(Bruce)
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Add // comments(Bruce)
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New entab utility(Bruce)
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New system relations to store DEFAULT/CHECK expressions(Vadim)
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Store CHECK infos on CREATE TABLE(Vadim)
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Default GEQO parameter is now 8(Bruce)
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Define DOUBLE PRECISION, INTERVAL, CHARACTER, and
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CHARACTER VARYING (SQL-92)(Thomas)
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Define EXTRACT(), POSITION(), SUBSTRING(), and TRIM() (SQL-92)(Thomas)
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Source Tree Changes
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-------------------
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HPUX 10 patches (Vladimir Turin)
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Added SCO support, (Daniel Harris)
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mkLinux patches (Tatsuo Ishii)
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Change box terminology from "length" to "width"(Thomas)
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Deprecate temporary unstored slope fields(Thomas)
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Remove restart instructions from INSTALL(Bruce)
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Look in /usr/ucb first for install(Bruce)
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Fix c++ copy example code(Thomas)
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Add -o to psql manual page(Bruce)
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Prevent relname unallocated string length from being copied into database(Bruce)
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Cleanup for NAMEDATALEN use(Bruce)
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Fix pgproc names over 15 chars in output(Bruce)
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Add strNcpy() function(Bruce)
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remove some (void) casts that are unnecessary(Bruce)
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new interfaces directory(Marc)
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Replace fopen() calls with calls to fd.c functions(Bruce)
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Make functions static where possible(Bruce)
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enclose unused functions in #ifdef NOT_USED(Bruce)
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Fix for sunos4 difftime() call(Bruce)
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Changes for Digital Unix
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Portability fix for pg_dumpall(Bruce)
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Rename pg_attribute.attnvals to attdisbursion(Bruce)
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intro/unix manual page now pgintro(Bruce)
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built-in manual page now pgbuiltin(Bruce)
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Add PGINDENT and support program(Bruce)
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Massive commit to run PGINDENT on all *.c and *.h files(Bruce)
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Files moved to /src/tools directory(Bruce)
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PostgreSQL 6.1.1 Mon Jul 22 18:04:49 EDT 1997
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-------------------------------------------------------------
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This release does NOT require a dump/restore for those running 6.1.
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Changes in this release
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-----------------------
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fix for SET with options (Thomas)
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allow pg_dump/pg_dumpall to preserve ownership of all tables/objects(Bruce)
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new psql \connect option allows changing usernames without chaning databases
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fix for initdb --debug option(Yoshihiko Ichikawa))
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lextest cleanup(Bruce)
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hash fixes(Vadim)
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fix date/time month boundary arithmetic(Thomas)
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fix timezone daylight handling for some ports(Thomas, Bruce, Tatsuo)
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timestamp overhauled to use standard functions(Thomas)
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other code cleanup in date/time routines(Thomas)
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psql's \d now case-insensitive(Bruce)
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psql's backslash commands can now have trailing semicolon(Bruce)
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fix memory leak in psql when using \g(Bruce)
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major fix for endian handling of communication to server(Thomas, Tatsuo)
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Fix for Solaris assembler and include files(Yoshihiko Ichikawa)
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allow underscores in usernames(Bruce)
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pg_dumpall now returns proper status, portability fix(Bruce)
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PostgreSQL 6.1 Sun Jun 8 14:41:13 EDT 1997
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-------------------------------------------------------------
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A dump/restore is required for those wishing to migrate data from
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previous releases of PostgreSQL.
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Bug Fixes
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---------
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packet length checking in library routines
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lock manager priority patch
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check for under/over flow of float8(Bruce)
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multi-table join fix(Vadim)
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SIGPIPE crash fix(Darren)
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large object fixes(Sven)
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allow btree indexes to handle NULLs(Vadim)
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timezone fixes(D'Arcy)
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select SUM(x) can return NULL on no rows(Thomas)
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internal optimizer, executor bug fixes(Vadim)
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fix problem where inner loop in < or <= has no rows(Vadim)
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prevent re-commuting join index clauses(Vadim)
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fix join clauses for multiple tables(Vadim)
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fix hash, hashjoin for arrays(Vadim)
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fix btree for abstime type(Vadim)
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large object fixes(Raymond)
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fix buffer leak in hash indices (Vadim)
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fix rtree for use in inner scan (Vadim)
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fix gist for use in inner scan, cleanups (Vadim, Andrea)
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avoid unnecessary local buffers allocation (Vadim, Massimo)
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fix local buffers leak in transaction aborts (Vadim)
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fix file manager memmory leaks, cleanups (Vadim, Massimo)
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fix storage manager memmory leaks (Vadim)
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fix btree duplicates handling (Vadim)
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fix deleted tuples re-incarnation caused by vacuum (Vadim)
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fix SELECT varchar()/char() INTO TABLE made zero-length fields(Bruce)
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many psql, pg_dump, and libpq memory leaks fixed using Purify (Igor)
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Enhancements
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------------
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attribute optimization statistics(Bruce)
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much faster new btree bulk load code(Paul)
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BTREE UNIQUE added to bulk load code(Vadim)
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new lock debug code(Massimo)
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massive changes to libpg++(Leo)
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new GEQO optimizer speeds table multi-table optimization(Martin)
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new WARN message for non-unique insert into unique key(Marc)
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update x=-3, no spaces, now valid(Bruce)
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remove case-sensitive identifier handling(Bruce,Thomas,Dan)
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debug backend now pretty-prints tree(Darren)
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new Oracle character functions(Edmund)
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new plaintext password functions(Dan)
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no such class or insufficient privilege changed to distinct messages(Dan)
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new ANSI timestamp function(Dan)
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new ANSI Time and Date types (Thomas)
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move large chunks of data in backend(Martin)
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multi-column btree indexes(Vadim)
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new SET var TO value command(Martin)
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update transaction status on reads(Dan)
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new locale settings for character types(Oleg)
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new SEQUENCE serial number generator(Vadim)
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GROUP BY function now possible(Vadim)
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re-organize regression test(Thomas,Marc)
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new optimizer operation weights(Vadim)
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new psql \z grant/permit option(Marc)
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new MONEY data type(D'Arcy,Thomas)
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tcp socket communication speed improved(Vadim)
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new VACUUM option for attribute statistics, and for certain columns (Vadim)
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many geometric type improvements(Thomas,Keith)
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additional regression tests(Thomas)
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new datestyle variable(Thomas,Vadim,Martin)
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more comparison operators for sorting types(Thomas)
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new conversion functions(Thomas)
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new more compact btree format(Vadim)
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allow pg_dumpall to preserve database ownership(Bruce)
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new SET GEQO=# and R_PLANS variable(Vadim)
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old (!GEQO) optimizer can use right-sided plans (Vadim)
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typechecking improvement in SQL parser(Bruce)
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new SET, SHOW, RESET commands(Thomas,Vadim)
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new \connect database USER option
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new destroydb -i option (Igor)
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new \dt and \di psql commands (Darren)
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SELECT "\n" now escapes newline (A. Duursma)
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new geometry conversion functions from old format (Thomas)
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Source tree changes
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-------------------
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new configuration script(Marc)
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readline configuration option added(Marc)
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OS-specific configuration options removed(Marc)
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new OS-specific template files(Marc)
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no more need to edit Makefile.global(Marc)
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re-arrange include files(Marc)
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nextstep patches (Gregor Hoffleit)
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removed WIN32-specific code(Bruce)
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removed postmaster -e option, now only postgres -e option (Bruce)
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merge duplicate library code in front/backends(Martin)
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now works with eBones, international Kerberos(Jun)
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more shared library support
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c++ include file cleanup(Bruce)
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warn about buggy flex(Bruce)
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DG-UX, Ultrix, Irix, AIX portability fixes
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PostgreSQL 6.0 Wed Jan 29 00:19:54 EST 1997
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-------------------------------------------------------------
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A dump/restore is required for those wishing to migrate data from
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previous releases of PostgreSQL.
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Bug Fixes
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---------
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ALTER TABLE bug - running postgress process needs to re-read table definition
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Allow vacuum to be run on one table or entire database(Bruce)
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Array fixes
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Fix array over-runs of memory writes(Kurt)
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Fix elusive btree range/non-range bug(Dan)
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Fix for hash indexes on some types like time and date
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Fix for pg_log size explosion
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Fix permissions on lo_export()(Bruce)
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Fix unitialized reads of memory(Kurt)
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Fixed ALTER TABLE ... char(3) bug(Bruce)
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Fixed a few small memory leaks
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Fixed EXPLAIN handling of options and changed full_path option name
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Fixed output of group acl permissions
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Memory leaks (hunt and destroy with tools like Purify(Kurt)
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Minor improvements to rules system
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NOTIFY fixes
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New asserts for run-checking
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Overhauled parser/analyze code to properly report errors and increase speed
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Pg_dump -d now handles NULL's properly(Bruce)
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Prevent SELECT NULL from crashing server (Bruce)
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Properly report errors when INSERT ... SELECT columns did not match
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Properly report errors when insert column names were not correct
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Psql \g filename now works(Bruce)
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Psql fixed problem with multiple statements on one line with multiple outputs
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Removed duplicate system oid's
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SELECT * INTO TABLE . GROUP/ORDER BY gives unlink error if table exists(Bruce)
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Several fixes for queries that crashed the backend
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Starting quote in insert string errors(Bruce)
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Submiting an empty query now returns empty status, not just " " query(Bruce)
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Enhancements
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------------
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Add EXPLAIN manual page(Bruce)
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Add UNIQUE index capability(Dan)
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Add hostname/user level access control rather than just hostname and user
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Add synonym of != for <>(Bruce)
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Allow "select oid,* from table"
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Allow BY,ORDER BY to specify columns by number, or by non-alias table.column(Bruce)
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Allow COPY from the frontend(Bryan)
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Allow GROUP BY to use alias column name(Bruce)
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Allow actual compression, not just reuse on the same page(Vadim)
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Allow installation-configuration option to auto-add all local users(Bryan)
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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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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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European date format now set when postmaster is started
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Execute lowercase function names if not found with exact case
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Fixes for aggregate/GROUP processing, allow 'select sum(func(x),sum(x+y) from z'
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Gist now included in the distrubution(Marc)
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Idend authentication of local users(Bryan)
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Implement BETWEEN qualifier(Bruce)
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Implement IN qualifier(Bruce)
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Libpq has PQgetisnull()(Bruce)
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Libpq++ improvements
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New options to initdb(Bryan)
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Pg_dump allow dump of oid's(Bruce)
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Pg_dump create indexes after tables are loaded for speed(Bruce)
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Pg_dumpall dumps all databases, and the user table
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Pginterface additions for NULL values(Bruce)
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Prevent postmaster from being run as root
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Psql \h and \? is now readable(Bruce)
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Psql allow backslashed, semicolons anywhere on the line(Bruce)
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Psql changed command prompt for lines in query or in quotes(Bruce)
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Psql char(3) now displays as (bp)char in \d output(Bruce)
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Psql return code now more accurate(Bryan?)
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Psql updated help syntax(Bruce)
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Re-visit and fix vacuum(Vadim)
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Reduce size of regression diffs, remove timezone name difference(Bruce)
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Remove compile-time parameters to enable binary distributions(Bryan)
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Reverse meaning of HBA masks(Bryan)
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Secure Authentication of local users(Bryan)
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Speed up vacuum(Vadim)
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Vacuum now had VERBOSE option(Bruce)
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Source tree changes
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-------------------
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All functions now have prototypes that are compared against the calls
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Allow asserts to be disabled easly from Makefile.global(Bruce)
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Change oid constants used in code to #define names
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Decoupled sparc and solaris defines(Kurt)
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Gcc -Wall compiles cleanly with warnings only from unfixable constructs
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Major include file reorganization/reduction(Marc)
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Make now stops on compile failure(Bryan)
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Makefile restructuring(Bryan, Marc)
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Merge bsdi_2_1 to bsdi(Bruce)
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Monitor program removed
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Name change from Postgres95 to PostgreSQL
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New config.h file(Marc, Bryan)
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PG_VERSION now set to 6.0 and used by postmaster
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Portability additions, including Ultrix, DG/UX, AIX, and Solaris
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Reduced the number of #define's, centeralized #define's
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Remove duplicate OIDS in system tables(Dan)
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Remove duplicate system catalog info or report mismatches(Dan)
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Removed many os-specific #define's
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Restructured object file generation/location(Bryan, Marc)
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Restructured port-specific file locations(Bryan, Marc)
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Unused/uninialized variables corrected
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PostgreSQL 1.09 ???
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-------------------------------------------------------------
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Sorry, we stopped keeping track of changes from 1.02 to 1.09. Some of
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the changes listed in 6.0 were actually included in the 1.02.1 to 1.09
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releases.
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Postgres95 1.02 Thu Aug 1 18:00:00 EDT 1996
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-------------------------------------------------------------
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Source code maintainenance and development
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* worldwide team of volunteers
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* the source tree now in CVS at ftp.ki.net
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* developers mailing list - pg95-dev@ki.net
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Enhancements
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* psql (and underlying libpq library) now has many more options for
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formatting output, including HTML
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* pg_dump now output the schema and/or the data, with many fixes to
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enhance completeness.
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* psql used in place of monitor in administration shell scripts.
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monitor to be depreciated in next release.
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* date/time functions enhanced
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* NULL insert/update/comparison fixed/enhanced
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* TCL/TK lib and shell fixed to work with both tck7.4/tk4.0 and tcl7.5/tk4.1
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Bug Fixes (almost too numerous to mention)
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* indexes
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* storage management
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* check for NULL pointer before dereferencing
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* Makefile fixes
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New Ports
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* added SolarisX86 port
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* added BSDI 2.1 port
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* added DGUX port
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Contributors (appologies to any missed)
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* Kurt J. Lidl <lidl@va.pubnix.com>
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(missed in first run, but no less important)
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* Erich Stamberger <eberger@gewi.kfunigraz.ac.at>
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* Jason Wright <jason@shiloh.vnet.net>
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* Cees de Groot <C.deGroot@inter.NL.net>
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* ernst.molitor@uni-bonn.de
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* michael.siebenborn@ae3.Hypo.DE (Michael Siebenborn (6929))
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* Brian E. Gallew <geek+@cmu.edu>
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* Vadim B. Mikheev <vadim@sable.krasnoyarsk.su>
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* Adam Sussman <myddryn@vidya.com>
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* Chris Dunlop <chris@onthe.net.au>
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* Marc G. Fournier <scrappy@ki.net>
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* Dan McGuirk <mcguirk@indirect.com>
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* Dr_George_D_Detlefsen <drgeorge@ilt.com>
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* Erich Stamberger <eberger@gewi.kfunigraz.ac.at>
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* Massimo Dal Zotto <dz@cs.unitn.it>
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* Randy Kunkee <kunkee@Starbase.NeoSoft.COM>
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* Rick Weldon <rick@wisetech.com>
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* Thomas van Reimersdahl <reimersd@dali.techinfo.rwth-aachen.de>
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* david bennett <dave@bensoft.com>
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* ernst.molitor@uni-bonn.de
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* Julian Assange <proff@suburbia.net>
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* Bruce Momjian <maillist@candle.pha.pa.us>
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* Paul "Shag" Walmsley <ccshag@cclabs.missouri.edu>
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* "Alistair G. Crooks" <azcb0@sde.uts.amdahl.com>
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Postgres95 1.01 Fri Feb 23 18:20:36 PST 1996
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-------------------------------------------------------------
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Incompatibilities:
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* 1.01 is backwards compatible with 1.0 database provided the user
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follow the steps outlined in the MIGRATION_from_1.0_to_1.01 file.
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If those steps are not taken, 1.01 is not compatible with 1.0 database.
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Enhancements:
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* added PQdisplayTuples() to libpq and changed monitor and psql to use it
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* added NeXT port (requires SysVIPC implementation)
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* added CAST .. AS ... syntax
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* added ASC and DESC keywords
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* added 'internal' as a possible language for CREATE FUNCTION
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internal functions are C functions which have been statically linked
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into the postgres backend.
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* a new type "name" has been added for system identifiers (table names,
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attribute names, etc.) This replaces the old char16 type. The
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of name is set by the NAMEDATALEN #define in src/Makefile.global
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* a readable reference manual that describes the query language.
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* added host-based access control. A configuration file ($PGDATA/pg_hba)
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is used to hold the configuration data. If host-based access control
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is not desired, comment out HBA=1 in src/Makefile.global.
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* changed regex handling to be uniform use of Henry Spencer's regex code
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regardless of platform. The regex code is included in the distribution
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* added functions and operators for case-insensitive regular expressions.
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The operators are ~* and !~*.
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* pg_dump uses COPY instead of SELECT loop for better performance
|
|
|
|
Bug fixes:
|
|
* fixed an optimizer bug that was causing core dumps when
|
|
functions calls were used in comparisons in the WHERE clause
|
|
* changed all uses of getuid to geteuid so that effective uids are used
|
|
* psql now returns non-zero status on errors when using -c
|
|
* applied public patches 1-14
|
|
|
|
Postgres95 1.0 Tue Sep 5 11:24:11 PDT 1995
|
|
-------------------------------------------------------------
|
|
|
|
Copyright change:
|
|
* The copyright of Postgres 1.0 has been loosened to be freely modifiable
|
|
and modifiable for any purpose. Please read the COPYRIGHT file.
|
|
Thanks to Professor Michael Stonebraker for making this possible.
|
|
|
|
Incompatibilities:
|
|
* date formats have to be MM-DD-YYYY (or DD-MM-YYYY if you're using
|
|
EUROPEAN STYLE). This follows SQL-92 specs.
|
|
* "delimiters" is now a keyword
|
|
|
|
Enhancements:
|
|
* sql LIKE syntax has been added
|
|
* copy command now takes an optional USING DELIMITER specification.
|
|
delimiters can be any single-character string.
|
|
* IRIX 5.3 port has been added.
|
|
Thanks to Paul Walmsley (ccshag@everest.cclabs.missouri.edu) and others.
|
|
* updated pg_dump to work with new libpq
|
|
* \d has been added psql
|
|
Thanks to Keith Parks (emkxp01@mtcc.demon.co.uk)
|
|
* regexp performance for architectures that use POSIX regex has been
|
|
improved due to caching of precompiled patterns.
|
|
Thanks to Alistair Crooks (agc@uts.amdahl.com)
|
|
* a new version of libpq++
|
|
Thanks to William Wanders (wwanders@sci.kun.nl)
|
|
|
|
Bug fixes:
|
|
* arbitrary userids can be specified in the createuser script
|
|
* \c to connect to other databases in psql now works.
|
|
* bad pg_proc entry for float4inc() is fixed
|
|
* users with usecreatedb field set can now create databases without
|
|
having to be usesuper
|
|
* remove access control entries when the entry no longer has any
|
|
permissions
|
|
* fixed non-portable datetimes implementation
|
|
* added kerberos flags to the src/backend/Makefile
|
|
* libpq now works with kerberos
|
|
* typographic errors in the user manual have been corrected.
|
|
* btrees with multiple index never worked, now we tell you they don't
|
|
work when you try to use them
|
|
|
|
|
|
Postgres95 Beta 0.03 Fri Jul 21 14:49:31 PDT 1995
|
|
------------------------------------------------------
|
|
Incompatible changes:
|
|
* BETA-0.3 IS INCOMPATIBLE WITH DATABASES CREATED WITH PREVIOUS VERSIONS
|
|
(due to system catalog changes and indexing structure changes).
|
|
* double-quote (") is deprecated as a quoting character for string literals;
|
|
you need to convert them to single quotes (').
|
|
* name of aggregates (eg. int4sum) are renamed in accordance with the
|
|
SQL standard (eg. sum).
|
|
* CHANGE ACL syntax is replaced by GRANT/REVOKE syntax.
|
|
* float literals (eg. 3.14) are now of type float4 (instead of float8 in
|
|
previous releases); you might have to do typecasting if you depend on it
|
|
being of type float8. If you neglect to do the typecasting and you assign
|
|
a float literal to a field of type float8, you may get incorrect values
|
|
stored!
|
|
* LIBPQ has been totally revamped so that frontend applications
|
|
can connect to multiple backends
|
|
* the usesysid field in pg_user has been changed from int2 to int4 to
|
|
allow wider range of Unix user ids.
|
|
* the netbsd/freebsd/bsd o/s ports have been consolidated into a
|
|
single BSD44_derived port. (thanks to Alistair Crooks)
|
|
|
|
SQL standard-compliance (the following details changes that makes postgres95
|
|
more compliant to the SQL-92 standard):
|
|
* the following SQL types are now built-in: smallint, int(eger), float, real,
|
|
char(N), varchar(N), date and time.
|
|
|
|
The following are aliases to existing postgres types:
|
|
smallint -> int2
|
|
integer, int -> int4
|
|
float, real -> float4
|
|
char(N) and varchar(N) are implemented as truncated text types. In
|
|
addition, char(N) does blank-padding.
|
|
* single-quote (') is used for quoting string literals; '' (in addition to
|
|
\') is supported as means of inserting a single quote in a string
|
|
* SQL standard aggregate names (MAX, MIN, AVG, SUM, COUNT) are used
|
|
(Also, aggregates can now be overloaded, i.e. you can define your
|
|
own MAX aggregate to take in a user-defined type.)
|
|
* CHANGE ACL removed. GRANT/REVOKE syntax added.
|
|
- Privileges can be given to a group using the "GROUP" keyword.
|
|
For example:
|
|
GRANT SELECT ON foobar TO GROUP my_group;
|
|
The keyword 'PUBLIC' is also supported to mean all users.
|
|
|
|
Privileges can only be granted or revoked to one user or group
|
|
at a time.
|
|
|
|
"WITH GRANT OPTION" is not supported. Only class owners can change
|
|
access control
|
|
- The default access control is to to grant users readonly access.
|
|
You must explicitly grant insert/update access to users. To change
|
|
this, modify the line in
|
|
src/backend/utils/acl.h
|
|
that defines ACL_WORLD_DEFAULT
|
|
|
|
Bug fixes:
|
|
* the bug where aggregates of empty tables were not run has been fixed. Now,
|
|
aggregates run on empty tables will return the initial conditions of the
|
|
aggregates. Thus, COUNT of an empty table will now properly return 0.
|
|
MAX/MIN of an empty table will return a tuple of value NULL.
|
|
* allow the use of \; inside the monitor
|
|
* the LISTEN/NOTIFY asynchronous notification mechanism now work
|
|
* NOTIFY in rule action bodies now work
|
|
* hash indices work, and access methods in general should perform better.
|
|
creation of large btree indices should be much faster. (thanks to Paul
|
|
Aoki)
|
|
|
|
Other changes and enhancements:
|
|
* addition of an EXPLAIN statement used for explaining the query execution
|
|
plan (eg. "EXPLAIN SELECT * FROM EMP" prints out the execution plan for
|
|
the query).
|
|
* WARN and NOTICE messages no longer have timestamps on them. To turn on
|
|
timestamps of error messages, uncomment the line in
|
|
src/backend/utils/elog.h:
|
|
/* define ELOG_TIMESTAMPS */
|
|
* On an access control violation, the message
|
|
"Either no such class or insufficient privilege"
|
|
will be given. This is the same message that is returned when
|
|
a class is not found. This dissuades non-privileged users from
|
|
guessing the existence of privileged classes.
|
|
* some additional system catalog changes have been made that are not
|
|
visible to the user.
|
|
|
|
libpgtcl changes:
|
|
* The -oid option has been added to the "pg_result" tcl command.
|
|
pg_result -oid returns oid of the last tuple inserted. If the
|
|
last command was not an INSERT, then pg_result -oid returns "".
|
|
* the large object interface is available as pg_lo* tcl commands:
|
|
pg_lo_open, pg_lo_close, pg_lo_creat, etc.
|
|
|
|
Portability enhancements and New Ports:
|
|
* flex/lex problems have been cleared up. Now, you should be able to use
|
|
flex instead of lex on any platforms. We no longer make assumptions of
|
|
what lexer you use based on the platform you use.
|
|
* The Linux-ELF port is now supported. Various configuration have been
|
|
tested: The following configuration is known to work:
|
|
kernel 1.2.10, gcc 2.6.3, libc 4.7.2, flex 2.5.2, bison 1.24
|
|
with everything in ELF format,
|
|
|
|
New utilities:
|
|
* ipcclean added to the distribution
|
|
ipcclean usually does not need to be run, but if your backend crashes
|
|
and leaves shared memory segments hanging around, ipcclean will
|
|
clean them up for you.
|
|
|
|
New documentation:
|
|
* the user manual has been revised and libpq documentation added.
|
|
|
|
Postgres95 Beta 0.02 (Thu May 25 16:54:46 PDT 1995)
|
|
------------------------------------------------------
|
|
Incompatible changes:
|
|
* The SQL statement for creating a database is 'CREATE DATABASE' instead
|
|
of 'CREATEDB'. Similarly, dropping a database is 'DROP DATABASE' instead
|
|
of 'DESTROYDB'. However, the names of the executables 'createdb' and
|
|
'destroydb' remain the same.
|
|
|
|
New tools:
|
|
* pgperl - a Perl (4.036) interface to Postgres95
|
|
* pg_dump - a utility for dumping out a postgres database into a
|
|
script file containing query commands. The script files are in a ASCII
|
|
format and can be used to reconstruct the database, even on other
|
|
machines and other architectures. (Also good for converting
|
|
a Postgres 4.2 database to Postgres95 database.)
|
|
|
|
The following ports have been incorporated into postgres95-beta-0.02:
|
|
* the NetBSD port by Alistair Crooks
|
|
* the AIX port by Mike Tung
|
|
* the Windows NT port by Jon Forrest (more stuff but not done yet)
|
|
* the Linux ELF port by Brian Gallew
|
|
|
|
The following bugs have been fixed in postgres95-beta-0.02:
|
|
* new lines not escaped in COPY OUT and problem with COPY OUT when first
|
|
attribute is a '.'
|
|
* cannot type return to use the default user id in createuser
|
|
* SELECT DISTINCT on big tables crashes
|
|
* Linux installation problems
|
|
* monitor doesn't allow use of 'localhost' as PGHOST
|
|
* psql core dumps when doing \c or \l
|
|
* the "pgtclsh" target missing from src/bin/pgtclsh/Makefile
|
|
* libpgtcl has a hard-wired default port number
|
|
* SELECT DISTINCT INTO TABLE hangs
|
|
* CREATE TYPE doesn't accept 'variable' as the internallength
|
|
* wrong result using more than 1 aggregate in a SELECT
|
|
|
|
Postgres95 Beta 0.01 (Mon May 1 19:03:10 PDT 1995)
|
|
------------------------------------------------------
|
|
Initial release.
|