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2051 lines
94 KiB
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2051 lines
94 KiB
Plaintext
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PostgreSQL Release History
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by The PostgreSQL Development Team
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PostgreSQL is Copyright © 1996-9 by the Postgres Global Development Group.
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Table of Contents
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Release 6.5.1
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Migration to v6.5.1
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Detailed Change List
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Release 6.5
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Migration to v6.5
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Multi-Version Concurrency Control
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Detailed Change List
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Release 6.4.2
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Migration to v6.4.2
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Detailed Change List
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Release 6.4.1
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Migration to v6.4.1
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Detailed Change List
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Release 6.4
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Migration to v6.4
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Detailed Change List
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Release 6.3.2
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Detailed Change List
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Release 6.3.1
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Detailed Change List
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Release 6.3
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Migration to v6.3
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Detailed Change List
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Release 6.2.1
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Migration from v6.2 to v6.2.1
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Detailed Change List
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Release 6.2
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Migration from v6.1 to v6.2
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Migration from v1.x to v6.2
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Detailed Change List
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Release 6.1.1
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Migration from v6.1 to v6.1.1
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Detailed Change List
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Release 6.1
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Migration to v6.1
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Detailed Change List
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Release v6.0
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Migration from v1.09 to v6.0
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Migration from pre-v1.09 to v6.0
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Detailed Change List
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Release v1.09
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Release v1.02
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Migration from v1.02 to v1.02.1
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Dump/Reload Procedure
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Detailed Change List
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Release v1.01
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Migration from v1.0 to v1.01
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Detailed Change List
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Release v1.0
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Detailed Change List
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Postgres95 Beta 0.03
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Detailed Change List
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Postgres95 Beta 0.02
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Detailed Change List
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Postgres95 Beta 0.01
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Release 6.5.1
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This is basically a cleanup release for 6.5. We have fixed a
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variety of problems reported by 6.5 users.
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Migration to v6.5.1
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A dump/restore is not required for those running 6.5.
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Detailed Change List
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Fix for datetime constant problem on some platforms(Thomas)
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Add NT README file
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Portability fixes for linux_ppc, Irix, linux_alpha, OpenBSD, alpha
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Remove QUERY_LIMIT, use SELECT...LIMIT
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Fix for EXPLAIN on inheritance(Tom)
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Patch to allow vacuum on multi-segment tables(Hiroshi)
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R-Tree optimizer selectivity fix(Tom)
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ACL file descriptor leak fix(Atsushi Ogawa)
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New expresssion subtree code(Tom)
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Avoid disk writes for read-only transactions(Vadim)
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Fix for removal of temp tables if last transaction was aborted(Bruce)
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Fix to prevent too large tuple from being created(Bruce)
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plpgsql fixes
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Allow port numbers 32k - 64k(Bruce)
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Add ^ precedence(Bruce)
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Rename sort files called pg_temp to pg_sorttemp(Bruce)
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Fix for microseconds in time values(Tom)
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Tutorial source cleanup
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New linux_m68k port
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Fix for sorting of NULL's in some cases(Tom)
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Shared library dependencies fixed (Tom)
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Fixed glitches affecting GROUP BY in subselects(Tom)
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Fix some compiler warnings (Tomoaki Nishiyama)
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Add Win1250 (Czech) support (Pavel Behal)
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Release 6.5
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This release marks a major step in the development team's mastery
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of the source code we inherited from Berkeley. You will see we are
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now easily adding major features, thanks to the increasing size and
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experience of our world-wide development team.
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Here is a brief summary of the more notable changes:
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Multi-version concurrency control(MVCC)
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This removes our old table-level locking, and replaces it with a
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locking system that is superior to most commercial database
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systems. In a traditional system, each row that is modified is
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locked until committed, preventing reads by other users. MVCC
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uses the natural multi-version nature of PostgreSQL to allow
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readers to continue reading consistent data during writer
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activity. Writers continue to use the compact pg_log transaction
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system. This is all performed without having to allocate a lock
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for every row like traditional database systems. So, basically,
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we no longer are restricted by simple table-level locking; we
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have something better than row-level locking.
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Hot backups from pg_dump
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pg_dump takes advantage of the new MVCC features to give a
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consistant database dump/backup while the database stays online
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and available for queries.
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Numeric data type
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We now have a true numeric data type, with user-specified
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precision.
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Temporary tables
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Temporary tables are guaranteed to have unique names within a
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database session, and are destroyed on session exit.
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New SQL features
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We now have CASE, INTERSECT, and EXCEPT statement support. We
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have new LIMIT/OFFSET, SET TRANSACTION ISOLATION LEVEL, SELECT
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... FOR UPDATE, and an improved LOCK TABLE command.
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Speedups
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We continue to speed up PostgreSQL, thanks to the variety of
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talents within our team. We have sped up memory allocation,
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optimization, table joins, and row transfer routines.
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Ports
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We continue to expand our port list, this time including
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WinNT/ix86 and NetBSD/arm32.
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Interfaces
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Most interfaces have new versions, and existing functionality
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has been improved.
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Documentation
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New and updated material is present throughout the
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documentation. New FAQs have been contributed for SGI and AIX
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platforms. The Tutorial has introductory information on SQL from
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Stefan Simkovics. For the User's Guide, there are reference pages
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covering the postmaster and more utility programs, and a new
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appendix contains details on date/time behavior. The
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Administrator's Guide has a new chapter on troubleshooting from
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Tom Lane. And the Programmer's Guide has a description of query
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processing, also from Stefan, and details on obtaining the
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Postgres source tree via anonymous CVS and CVSup.
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Migration to v6.5
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A dump/restore using pg_dump is required for those wishing to
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migrate data from any previous release of Postgres. pg_upgrade can
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not be used to upgrade to this release because the on-disk structure
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of the tables has changed compared to previous releases.
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The new Multi-Version Concurrency Control (MVCC) features can give
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somewhat different behaviors in multi-user environments. Read and
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understand the following section to ensure that your existing
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applications will give you the behavior you need.
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Multi-Version Concurrency Control
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Because readers in 6.5 don't lock data, regardless of transaction
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isolation level, data read by one transaction can be overwritten by
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another. In other words, if a row is returned by SELECT it doesn't
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mean that this row really exists at the time it is returned (i.e.
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sometime after the statement or transaction began) nor that the row
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is protected from being deleted or updated by concurrent
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transactions before the current transaction does a commit or
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rollback.
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To ensure the actual existence of a row and protect it against
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concurrent updates one must use SELECT FOR UPDATE or an appropriate
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LOCK TABLE statement. This should be taken into account when porting
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applications from previous releases of Postgres and other
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environments.
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Keep the above in mind if you are using contrib/refint.* triggers
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for referential integrity. Additional technics are required now. One
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way is to use LOCK parent_table IN SHARE ROW EXCLUSIVE MODE command
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if a transaction is going to update/delete a primary key and use
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LOCK parent_table IN SHARE MODE command if a transaction is going to
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update/insert a foreign key.
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Note: Note that if you run a transaction in SERIALIZABLE mode
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then you must execute the LOCK commands above before execution of
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any DML statement (SELECT/INSERT/DELETE/UPDATE/FETCH/COPY_TO) in
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the transaction.
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These inconveniences will disappear in the future when the ability
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to read dirty (uncommitted) data (regardless of isolation level) and
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true referential integrity will be implemented.
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Detailed Change List
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Bug Fixes
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---------
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Fix text<->float8 and text<->float4 conversion functions(Thomas)
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Fix for creating tables with mixed-case constraints(Billy)
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Change exp()/pow() behavior to generate error on
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underflow/overflow(Jan)
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Fix bug in pg_dump -z
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Memory overrun cleanups(Tatsuo)
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Fix for lo_import crash(Tatsuo)
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Adjust handling of data type names to suppress double quotes(Thomas)
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Use type coersion for matching columns and DEFAULT(Thomas)
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Fix deadlock so it only checks once after one second of sleep(Bruce)
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Fixes for aggregates and PL/pgsql(Hiroshi)
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Fix for subquery crash(Vadim)
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Fix for libpq function PQfnumber and case-insensitive names(Bahman
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Rafatjoo)
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Fix for large object write-in-middle, no extra block, memory
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consumption(Tatsuo)
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Fix for pg_dump -d or -D and quote special characters in INSERT
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Repair serious problems with dynahash(Tom)
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Fix INET/CIDR portability problems
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Fix problem with selectivity error in ALTER TABLE ADD COLUMN(Bruce)
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Fix executor so mergejoin of different column types works(Tom)
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Fix for Alpha OR selectivity bug
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Fix OR index selectivity problem(Bruce)
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Fix so \d shows proper length for char()/varchar()(Ryan)
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Fix tutorial code(Clark)
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Improve destroyuser checking(Oliver)
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Fix for Kerberos(Rodney McDuff)
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Fix for dropping database while dirty buffers(Bruce)
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Fix so sequence nextval() can be case-sensitive(Bruce)
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Fix !!= operator
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Drop buffers before destroying database files(Bruce)
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Fix case where executor evaluates functions twice(Tatsuo)
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Allow sequence nextval actions to be case-sensitive(Bruce)
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Fix optimizer indexing not working for negative numbers(Bruce)
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Fix for memory leak in executor with fjIsNull
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Fix for aggregate memory leaks(Erik Riedel)
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Allow username containing a dash GRANT permissions
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Cleanup of NULL in inet types
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Clean up system table bugs(Tom)
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Fix problems of PAGER and \? command(Masaaki Sakaida)
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Reduce default multi-segment file size limit to 1GB(Peter)
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Fix for dumping of CREATE OPERATOR(Tom)
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Fix for backward scanning of cursors(Hiroshi Inoue)
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Fix for COPY FROM STDIN when using \i(Tom)
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Fix for subselect is compared inside an expression(Jan)
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Fix handling of error reporting while returning rows(Tom)
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Fix problems with reference to array types(Tom,Jan)
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Prevent UPDATE SET oid(Jan)
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Fix pg_dump so -t option can handle case-sensitive tablenames
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Fixes for GROUP BY in special cases(Tom, Jan)
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Fix for memory leak in failed queries(Tom)
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DEFAULT now supports mixed-case identifiers(Tom)
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Fix for multi-segment uses of DROP/RENAME table, indexes(Ole Gjerde)
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Disable use of pg_dump with both -o and -d options(Bruce)
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Allow pg_dump to properly dump GROUP permissions(Bruce)
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Fix GROUP BY in INSERT INTO table SELECT * FROM table2(Jan)
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Fix for computations in views(Jan)
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Fix for aggregates on array indexes(Tom)
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Fix for DEFAULT handles single quotes in value requiring too many
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quotes
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Fix security problem with non-super users importing/exporting large
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objects(Tom)
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Rollback of transaction that creates table cleaned up properly(Tom)
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Fix to allow long table and column names to generate proper serial
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names(Tom)
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Enhancements
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------------
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Add "vacuumdb" utility
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Speed up libpq by allocating memory better(Tom)
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EXPLAIN all indices used(Tom)
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Implement CASE, COALESCE, NULLIF expression(Thomas)
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New pg_dump table output format(Constantin)
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Add string min()/max() functions(Thomas)
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Extend new type coersion techniques to aggregates(Thomas)
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New moddatetime contrib(Terry)
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Update to pgaccess 0.96(Constantin)
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Add routines for single-byte "char" type(Thomas)
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Improved substr() function(Thomas)
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Improved multi-byte handling(Tatsuo)
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Multi-version concurrency control/MVCC(Vadim)
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New Serialized mode(Vadim)
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Fix for tables over 2gigs(Peter)
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New SET TRANSACTION ISOLATION LEVEL(Vadim)
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New LOCK TABLE IN ... MODE(Vadim)
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Update ODBC driver(Byron)
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New NUMERIC data type(Jan)
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New SELECT FOR UPDATE(Vadim)
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Handle "NaN" and "Infinity" for input values(Jan)
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Improved date/year handling(Thomas)
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Improved handling of backend connections(Magnus)
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New options ELOG_TIMESTAMPS and USE_SYSLOG options for log
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files(Massimo)
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New TCL_ARRAYS option(Massimo)
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New INTERSECT and EXCEPT(Stefan)
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New pg_index.indisprimary for primary key tracking(D'Arcy)
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New pg_dump option to allow dropping of tables before
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creation(Brook)
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Speedup of row output routines(Tom)
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New READ COMMITTED isolation level(Vadim)
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New TEMP tables/indexes(Bruce)
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Prevent sorting if result is already sorted(Jan)
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New memory allocation optimization(Jan)
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Allow psql to do \p\g(Bruce)
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Allow multiple rule actions(Jan)
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Added LIMIT/OFFSET functionality(Jan)
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Improve optimizer when joining a large number of tables(Bruce)
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New intro to SQL from S. Simkovics' Master's Thesis (Stefan, Thomas)
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New intro to backend processing from S. Simkovics' Master's Thesis
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(Stefan)
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Improved int8 support(Ryan Bradetich, Thomas, Tom)
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New routines to convert between int8 and text/varchar types(Thomas)
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New bushy plans, where meta-tables are joined(Bruce)
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Enable right-hand queries by default(Bruce)
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Allow reliable maximum number of backends to be set at configure
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time
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(--with-maxbackends and postmaster switch (-N backends))(Tom)
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GEQO default now 10 tables because of optimizer speedups(Tom)
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Allow NULL=Var for MS-SQL portability(Michael, Bruce)
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Modify contrib check_primary_key() so either "automatic" or
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"dependent"(Anand)
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Allow psql \d on a view show query(Ryan)
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Speedup for LIKE(Bruce)
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Ecpg fixes/features, see src/interfaces/ecpg/ChangeLog file(Michael)
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JDBC fixes/features, see src/interfaces/jdbc/CHANGELOG(Peter)
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Make % operator have precedence like /(Bruce)
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Add new postgres -O option to allow system table structure
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changes(Bruce)
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Update contrib/pginterface/findoidjoins script(Tom)
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Major speedup in vacuum of deleted rows with indexes(Vadim)
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Allow non-SQL functions to run different versions based on
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arguments(Tom)
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Add -E option that shows actual queries sent by \dt and
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friends(Masaaki Sakaida)
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Add version number in startup banners for psql(Masaaki Sakaida)
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New contrib/vacuumlo removes large objects not referenced(Peter)
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New initialization for table sizes so non-vacuumed tables perform
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better(Tom)
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Improve error messages when a connection is rejected(Tom)
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Support for arrays of char() and varchar() fields(Massimo)
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Overhaul of hash code to increase reliability and performance(Tom)
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Update to PyGreSQL 2.4(D'Arcy)
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Changed debug options so -d4 and -d5 produce different node
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displays(Jan)
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New pg_options: pretty_plan, pretty_parse, pretty_rewritten(Jan)
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Better optimization statistics for system table access(Tom)
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Better handling of non-default block sizes(Massimo)
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Improve GEQO optimizer memory consumption(Tom)
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UNION now suppports ORDER BY of columns not in target list(Jan)
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Major libpq++ improvements(Vince Vielhaber)
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pg_dump now uses -z(ACL's) as default(Bruce)
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backend cache, memory speedups(Tom)
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have pg_dump do everything in one snapshot transaction(Vadim)
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fix for large object memory leakage, fix for pg_dumping(Tom)
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INET type now respects netmask for comparisons
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Make VACUUM ANALYZE only use a readlock(Vadim)
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Allow VIEWs on UNIONS(Jan)
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pg_dump now can generate consistent snapshots on active
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databases(Vadim)
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Source Tree Changes
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-------------------
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Improve port matching(Tom)
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Portability fixes for SunOS
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Add NT/Win32 backend port and enable dynamic loading(Magnus and
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Daniel Horak)
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New port to Cobalt Qube(Mips) running Linux(Tatsuo)
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Port to NetBSD/m68k(Mr. Mutsuki Nakajima)
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Port to NetBSD/sun3(Mr. Mutsuki Nakajima)
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Port to NetBSD/macppc(Toshimi Aoki)
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Fix for tcl/tk configuration(Vince)
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Removed CURRENT keyword for rule queries(Jan)
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NT dynamic loading now works(Daniel Horak)
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Add ARM32 support(Andrew McMurry)
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Better support for HPUX 11 and Unixware
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Improve file handling to be more uniform, prevent file descriptor
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leak(Tom)
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New install commands for plpgsql(Jan)
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Release 6.4.2
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The 6.4.1 release was improperly packaged. This also has one
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additional bug fix.
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Migration to v6.4.2
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A dump/restore is not required for those running 6.4.*.
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Detailed Change List
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Fix for datetime constant problem on some platforms(Thomas)
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Release 6.4.1
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This is basically a cleanup release for 6.4. We have fixed a variety
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of problems reported by 6.4 users.
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Migration to v6.4.1
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A dump/restore is not required for those running 6.4.
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Detailed Change List
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Add pg_dump -N flag to force double quotes around identifiers. This
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is
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the default(Thomas)
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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(Thomas)
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Fix a couple of pg_dump bugs
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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(Thomas)
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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(Thomas)
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pg_dump fixes for memory leak, inheritance constraints, layout
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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(Thomas)
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Add routines to help with single-byte (internal) character
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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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Release 6.4
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There are many new features and improvements in this release. Thanks
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to our developers and maintainers, nearly every aspect of the system
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has received some attention since the previous release. Here is a
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brief, incomplete summary:
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o Views and rules are now functional thanks to extensive new code in
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the rewrite rules system from Jan Wieck. He also wrote a chapter
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on it for the Programmer's Guide.
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o Jan also contributed a second procedural language, PL/pgSQL, to go
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with the original PL/pgTCL procedural language he contributed last
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release.
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o We have optional multiple-byte character set support from Tatsuo
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Iishi to complement our existing locale support.
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o Client/server communications has been cleaned up, with better
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support for asynchronous messages and interrupts thanks to Tom
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Lane.
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o The parser will now perform automatic type coersion to match
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arguments to available operators and functions, and to match
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columns and expressions with target columns. This uses a generic
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mechanism which supports the type extensibility features of
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Postgres. There is a new chapter in the User's Guide which covers
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this topic.
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o Three new data types have been added. Two types, inet and cidr,
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support various forms of IP network, subnet, and machine
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addressing. There is now an 8-byte integer type available on some
|
|
platforms. See the chapter on data types in the User's Guide for
|
|
details. A fourth type, serial, is now supported by the parser as
|
|
an amalgam of the int4 type, a sequence, and a unique index.
|
|
o Several more SQL92-compatible syntax features have been added,
|
|
including INSERT DEFAULT VALUES
|
|
o The automatic configuration and installation system has received
|
|
some attention, and should be more robust for more platforms than
|
|
it has ever been.
|
|
|
|
Migration to v6.4
|
|
|
|
A dump/restore using pg_dump or pg_dumpall is required for those
|
|
wishing to migrate data from any previous release of Postgres.
|
|
|
|
Detailed Change List
|
|
|
|
Bug Fixes
|
|
---------
|
|
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)
|
|
Reduced busywaiting overhead for spinlocks with many backends (dg)
|
|
Stuck spinlock detection (dg)
|
|
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 shared invalidation cache overflow(Massimo)
|
|
Prevent file descriptor leaks in failed COPY's(Bruce)
|
|
Fix memory leak in libpgtcl's pg_select(Constantin)
|
|
Fix problems with username/passwords over 8 characters(Tom)
|
|
Fix problems with handling of asynchronous NOTIFY in backend(Tom)
|
|
Fix of many bad system table entries(Tom)
|
|
|
|
Enhancements
|
|
------------
|
|
Upgrade ecpg and ecpglib,see src/interfaces/ecpc/ChangeLog(Michael)
|
|
Show the index used in an EXPLAIN(Zeugswetter)
|
|
EXPLAIN invokes rule system and shows plan(s) for rewritten
|
|
queries(Jan)
|
|
Multi-byte awareness of many data types and functions, via
|
|
configure(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)
|
|
Libpq users need not issue dummy queries to get NOTIFY messages(Tom)
|
|
NOTIFY now sends sender's PID, so you can tell whether it was your
|
|
own(Tom)
|
|
PGresult struct now includes associated error message, if any(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 handles NOTIFY as a Tcl event, need not send dummy
|
|
queries(Tom)
|
|
libpgtcl cleanups(Tom)
|
|
Add -error option to libpgtcl's pg_result command(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
|
|
New 8-byte integer type, checked by configure for OS support(Thomas)
|
|
Better support for quoted table/column names(Thomas)
|
|
Surround table and column names with double-quotes in
|
|
pg_dump(Thomas)
|
|
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)
|
|
Make pg_dump -z flag work better, document it in manual page(Tom)
|
|
Add HAVING clause with full support for subselects and
|
|
unions(Stephan)
|
|
Full text indexing routines in contrib/fulltextindex(Maarten)
|
|
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_tables, pg_indexes, pg_rules and pg_views system
|
|
views
|
|
* Only a single action on SELECT rules
|
|
* Total rewrite overhaul, perhaps for 6.5
|
|
* handle subselects
|
|
* handle aggregates on views
|
|
* handle insert into select from view works
|
|
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 and libpq now compile under win32 using win32.mak(Magnus)
|
|
Lo_read no longer stores trailing NULL(Bruce)
|
|
Identifiers are now truncated to 31 characters internally(Bruce)
|
|
Createuser options now availble on the command line
|
|
Code for 64-bit integer supported added, configure tested, int8
|
|
type(Thomas)
|
|
Prevent file descriptor leaf from failed COPY(Bruce)
|
|
New pg_upgrade command(Bruce)
|
|
Updated /contrib directories(Massimo)
|
|
New CREATE TABLE DEFAULT VALUES statement available(Thomas)
|
|
New INSERT INTO TABLE DEFAULT VALUES statement available(Thomas)
|
|
New DECLARE and FETCH feature(Thomas)
|
|
libpq's internal structures now not exported(Tom)
|
|
Allow up to 8 key indexes(Bruce)
|
|
Remove ARCHIVE keyword, that is no longer used(Thomas)
|
|
pg_dump -n flag to supress quotes around indentifiers
|
|
disable system columns for views(Jan)
|
|
new INET and CIDR types for network addresses(TomH, Paul)
|
|
no more double quotes in psql output
|
|
pg_dump now dumps views(Terry)
|
|
new SET QUERY_LIMIT(Tatsuo,Jan)
|
|
|
|
Source Tree Changes
|
|
-------------------
|
|
/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 PQconnectdb, PGUSER, PGPASSWORD to libpq man page
|
|
NS32K platform fixes(Phil Nelson, John Buller)
|
|
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)
|
|
Nextstep support(Jacek)
|
|
Aix support(David)
|
|
pginterface manual page(Bruce)
|
|
shared libraries all have version numbers
|
|
merged all OS-specific shared library defines into one file
|
|
smarter TCL/TK configuration checking(Billy)
|
|
smarter perl configuration(Brook)
|
|
configure uses supplied install-sh if no install script found(Tom)
|
|
new Makefile.shlib for shared library configuration(Tom)
|
|
|
|
Release 6.3.2
|
|
|
|
This is a bugfix release for 6.3.x. Refer to the release notes for
|
|
v6.3 for a more complete summary of new features.
|
|
Summary:
|
|
o Repairs automatic configuration support for some platforms,
|
|
including Linux, from breakage inadvertently introduced in v6.3.1.
|
|
o Correctly handles function calls on the left side of BETWEEN and
|
|
LIKE clauses.
|
|
A dump/restore is NOT required for those running 6.3 or 6.3.1. A
|
|
'make distclean', 'make', and 'make install' is all that is
|
|
required. This last step should be performed while the postmaster is
|
|
not running. You should re-link any custom applications that use
|
|
Postgres libraries.
|
|
For upgrades from pre-v6.3 installations, refer to the installation
|
|
and migration instructions for v6.3.
|
|
|
|
Detailed Change List
|
|
|
|
Changes
|
|
-------
|
|
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)
|
|
|
|
Release 6.3.1
|
|
|
|
Summary:
|
|
o Additional support for multi-byte character sets.
|
|
o Repair byte ordering for mixed-endian clients and servers.
|
|
o Minor updates to allowed SQL syntax.
|
|
o Improvements to the configuration autodetection for installation.
|
|
A dump/restore is NOT required for those running 6.3. A 'make
|
|
distclean', 'make', and 'make install' is all that is required. This
|
|
last step should be performed while the postmaster is not running.
|
|
You should re-link any custom applications that use Postgres
|
|
libraries.
|
|
For upgrades from pre-v6.3 installations, refer to the installation
|
|
and migration instructions for v6.3.
|
|
|
|
Detailed Change List
|
|
|
|
Changes
|
|
-------
|
|
ecpg cleanup/fixes, now version 1.1(Michael Meskes)
|
|
pg_user cleanup(Bruce)
|
|
large object fix for pg_dump and tclsh (alvin)
|
|
LIKE fix for multiple adjacent underscores
|
|
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)
|
|
|
|
Release 6.3
|
|
|
|
There are many new features and improvements in this release. Here
|
|
is a brief, incomplete summary:
|
|
o Many new SQL features, including full SQL92 subselect capability
|
|
(everything is here but target-list subselects).
|
|
o Support for client-side environment variables to specify time zone
|
|
and date style.
|
|
o Socket interface for client/server connection. This is the default
|
|
now so you may need to start postmaster with the ?-i? flag.
|
|
o Better password authorization mechanisms. Default table
|
|
permissions have changed.
|
|
o Old-style ?time travel? has been removed. Performance has been
|
|
improved.
|
|
|
|
Note: Bruce Momjian wrote the following notes to introduce the
|
|
new 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. A
|
|
review of the detailed changes list is still needed.
|
|
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 Postgres.
|
|
This is the first release that really required an explanation 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.
|
|
|
|
Migration to v6.3
|
|
|
|
A dump/restore using pg_dump or pg_dumpall is required for those
|
|
wishing to migrate data from any previous release of Postgres.
|
|
|
|
Detailed Change List
|
|
|
|
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)
|
|
|
|
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 Postgres 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)
|
|
|
|
Source Tree Changes
|
|
-------------------
|
|
Add new html development tools, and flow chart in /tools/backend
|
|
Fix for SCO compiles
|
|
Stratus computer port Robert Gillies
|
|
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)
|
|
|
|
Release 6.2.1
|
|
|
|
v6.2.1 is a bug-fix and usability release on v6.2.
|
|
Summary:
|
|
o Allow strings to span lines, per SQL92.
|
|
o Include example trigger function for inserting user names on table
|
|
updates.
|
|
This is a minor bug-fix release on v6.2. For upgrades from pre-v6.2
|
|
systems, a full dump/reload is required. Refer to the v6.2 release
|
|
notes for instructions.
|
|
|
|
Migration from v6.2 to v6.2.1
|
|
|
|
This is a minor bug-fix release. A dump/reload is not required from
|
|
v6.2, but is required from any release prior to v6.2.
|
|
In upgrading from v6.2, if you choose to dump/reload you will find
|
|
that avg(money) is now calculated correctly. All other bug fixes
|
|
take effect upon updating the executables.
|
|
Another way to avoid dump/reload is to use the following SQL command
|
|
from psql to update the existing system table:
|
|
|
|
update pg_aggregate set aggfinalfn = 'cash_div_flt8'
|
|
where aggname = 'avg' and aggbasetype = 790;
|
|
|
|
This will need to be done to every existing database, including
|
|
template1.
|
|
|
|
Detailed Change List
|
|
|
|
Changes in this release
|
|
-----------------------
|
|
Allow TIME and TYPE column names(Thomas)
|
|
Allow larger range of true/false as boolean values(Thomas)
|
|
Support output of "now" and "current"(Thomas)
|
|
Handle DEFAULT with INSERT of NULL properly(Vadim)
|
|
Fix for relation reference counts problem in buffer manager(Vadim)
|
|
Allow strings to span lines, like ANSI(Thomas)
|
|
Fix for backward cursor with ORDER BY(Vadim)
|
|
Fix avg(cash) computation(Thomas)
|
|
Fix for specifying a column twice in ORDER/GROUP BY(Vadim)
|
|
Documented new libpq function to return affected rows,
|
|
PQcmdTuples(Bruce)
|
|
Trigger function for inserting user names for INSERT/UPDATE(Brook
|
|
Milligan)
|
|
|
|
Release 6.2
|
|
|
|
A dump/restore is required for those wishing to migrate data from
|
|
previous releases of Postgres.
|
|
|
|
Migration from v6.1 to v6.2
|
|
|
|
This migration requires a complete dump of the 6.1 database and a
|
|
restore of the database in 6.2.
|
|
Note that the pg_dump and pg_dumpall utility from 6.2 should be used
|
|
to dump the 6.1 database.
|
|
|
|
Migration from v1.x to v6.2
|
|
|
|
Those migrating from earlier 1.* releases should first upgrade to
|
|
1.09 because the COPY output format was improved from the 1.02
|
|
release.
|
|
|
|
Detailed Change List
|
|
|
|
Bug Fixes
|
|
---------
|
|
Fix problems with pg_dump for inheritance, sequences, archive
|
|
tables(Bruce)
|
|
Fix compile errors on overflow due to shifts, unsigned, and bad
|
|
prototypes
|
|
from Solaris(Diab Jerius)
|
|
Fix bugs in geometric line arithmetic (bad intersection
|
|
calculations)(Thomas)
|
|
Check for geometric intersections at endpoints to avoid rounding
|
|
ugliness(Thomas)
|
|
Catch non-functional delete attempts(Vadim)
|
|
Change time function names to be more consistent(Michael Reifenberg)
|
|
Check for zero divides(Michael Reifenberg)
|
|
Fix very old bug which made tuples changed/inserted by a commnd
|
|
visible to the command itself (so we had multiple update of
|
|
updated tuples, etc)(Vadim)
|
|
Fix for SELECT null, 'fail' FROM pg_am (Patrick)
|
|
SELECT NULL as EMPTY_FIELD now allowed(Patrick)
|
|
Remove un-needed signal stuff from contrib/pginterface
|
|
Fix OR (where x <> 1 or x isnull didn't return tuples with x NULL)
|
|
(Vadim)
|
|
Fix time_cmp function (Vadim)
|
|
Fix handling of functions with non-attribute first argument in
|
|
WHERE clauses (Vadim)
|
|
Fix GROUP BY when order of entries is different from order
|
|
in target list (Vadim)
|
|
Fix pg_dump for aggregates without sfunc1 (Vadim)
|
|
|
|
Enhancements
|
|
------------
|
|
Default genetic optimizer GEQO parameter is now 8(Bruce)
|
|
Allow use parameters in target list having aggregates in
|
|
functions(Vadim)
|
|
Added JDBC driver as an interface(Adrian & Peter)
|
|
pg_password utility
|
|
Return number of tuples inserted/affected by INSERT/UPDATE/DELETE
|
|
etc.(Vadim)
|
|
Triggers implemented with CREATE TRIGGER (SQL3)(Vadim)
|
|
SPI (Server Programming Interface) allows execution of queries
|
|
inside
|
|
C-functions (Vadim)
|
|
NOT NULL implemented (SQL92)(Robson Paniago de Miranda)
|
|
Include reserved words for string handling, outer joins, and
|
|
unions(Thomas)
|
|
Implement extended comments ("/* ... */") using exclusive
|
|
states(Thomas)
|
|
Add "//" single-line comments(Bruce)
|
|
Remove some restrictions on characters in operator names(Thomas)
|
|
DEFAULT and CONSTRAINT for tables implemented (SQL92)(Vadim &
|
|
Thomas)
|
|
Add text concatenation operator and function (SQL92)(Thomas)
|
|
Support WITH TIME ZONE syntax (SQL92)(Thomas)
|
|
Support INTERVAL unit TO unit syntax (SQL92)(Thomas)
|
|
Define types DOUBLE PRECISION, INTERVAL, CHARACTER,
|
|
and CHARACTER VARYING (SQL92)(Thomas)
|
|
Define type FLOAT(p) and rudimentary DECIMAL(p,s), NUMERIC(p,s)
|
|
(SQL92)(Thomas)
|
|
Define EXTRACT(), POSITION(), SUBSTRING(), and TRIM()
|
|
(SQL92)(Thomas)
|
|
Define CURRENT_DATE, CURRENT_TIME, CURRENT_TIMESTAMP (SQL92)(Thomas)
|
|
Add syntax and warnings for UNION, HAVING, INNER and OUTER JOIN
|
|
(SQL92)(Thomas)
|
|
Add more reserved words, mostly for SQL92 compliance(Thomas)
|
|
Allow hh:mm:ss time entry for timespan/reltime types(Thomas)
|
|
Add center() routines for lseg, path, polygon(Thomas)
|
|
Add distance() routines for circle-polygon, polygon-polygon(Thomas)
|
|
Check explicitly for points and polygons contained within polygons
|
|
using an axis-crossing algorithm(Thomas)
|
|
Add routine to convert circle-box(Thomas)
|
|
Merge conflicting operators for different geometric data
|
|
types(Thomas)
|
|
Replace distance operator "<===>" with "<->"(Thomas)
|
|
Replace "above" operator "!^" with ">^" and "below" operator "!|"
|
|
with "<^"(Thomas)
|
|
Add routines for text trimming on both ends, substring, and string
|
|
position(Thomas)
|
|
Added conversion routines circle(box) and poly(circle)(Thomas)
|
|
Allow internal sorts to be stored in memory rather than in
|
|
files(Bruce & Vadim)
|
|
Allow functions and operators on internally-identical types to
|
|
succeed(Bruce)
|
|
Speed up backend startup after profiling analysis(Bruce)
|
|
Inline frequently called functions for performance(Bruce)
|
|
Reduce open() calls(Bruce)
|
|
psql: Add PAGER for \h and \?,\C fix
|
|
Fix for psql pager when no tty(Bruce)
|
|
New entab utility(Bruce)
|
|
General trigger functions for referential integrity (Vadim)
|
|
General trigger functions for time travel (Vadim)
|
|
General trigger functions for AUTOINCREMENT/IDENTITY feature (Vadim)
|
|
MOVE implementation (Vadim)
|
|
|
|
Source Tree Changes
|
|
-------------------
|
|
HPUX 10 patches (Vladimir Turin)
|
|
Added SCO support, (Daniel Harris)
|
|
mkLinux patches (Tatsuo Ishii)
|
|
Change geometric box terminology from "length" to "width"(Thomas)
|
|
Deprecate temporary unstored slope fields in geometric code(Thomas)
|
|
Remove restart instructions from INSTALL(Bruce)
|
|
Look in /usr/ucb first for install(Bruce)
|
|
Fix c++ copy example code(Thomas)
|
|
Add -o to psql manual page(Bruce)
|
|
Prevent relname unallocated string length from being copied into
|
|
database(Bruce)
|
|
Cleanup for NAMEDATALEN use(Bruce)
|
|
Fix pg_proc names over 15 chars in output(Bruce)
|
|
Add strNcpy() function(Bruce)
|
|
remove some (void) casts that are unnecessary(Bruce)
|
|
new interfaces directory(Marc)
|
|
Replace fopen() calls with calls to fd.c functions(Bruce)
|
|
Make functions static where possible(Bruce)
|
|
enclose unused functions in #ifdef NOT_USED(Bruce)
|
|
Remove call to difftime() in timestamp support to fix SunOS(Bruce &
|
|
Thomas)
|
|
Changes for Digital Unix
|
|
Portability fix for pg_dumpall(Bruce)
|
|
Rename pg_attribute.attnvals to attdisbursion(Bruce)
|
|
"intro/unix" manual page now "pgintro"(Bruce)
|
|
"built-in" manual page now "pgbuiltin"(Bruce)
|
|
"drop" manual page now "drop_table"(Bruce)
|
|
Add "create_trigger", "drop_trigger" manual pages(Thomas)
|
|
Add constraints regression test(Vadim & Thomas)
|
|
Add comments syntax regression test(Thomas)
|
|
Add PGINDENT and support program(Bruce)
|
|
Massive commit to run PGINDENT on all *.c and *.h files(Bruce)
|
|
Files moved to /src/tools directory(Bruce)
|
|
SPI and Trigger programming guides (Vadim & D'Arcy)
|
|
|
|
Release 6.1.1
|
|
|
|
Migration from v6.1 to v6.1.1
|
|
|
|
This is a minor bug-fix release. A dump/reload is not required from
|
|
v6.1, but is required from any release prior to v6.1. Refer to the
|
|
release notes for v6.1 for more details.
|
|
|
|
Detailed Change List
|
|
|
|
Changes in this release
|
|
-----------------------
|
|
fix for SET with options (Thomas)
|
|
allow pg_dump/pg_dumpall to preserve ownership of all
|
|
tables/objects(Bruce)
|
|
new psql \connect option allows changing usernames without changing
|
|
databases
|
|
fix for initdb --debug option(Yoshihiko Ichikawa))
|
|
lextest cleanup(Bruce)
|
|
hash fixes(Vadim)
|
|
fix date/time month boundary arithmetic(Thomas)
|
|
fix timezone daylight handling for some ports(Thomas, Bruce, Tatsuo)
|
|
timestamp overhauled to use standard functions(Thomas)
|
|
other code cleanup in date/time routines(Thomas)
|
|
psql's \d now case-insensitive(Bruce)
|
|
psql's backslash commands can now have trailing semicolon(Bruce)
|
|
fix memory leak in psql when using \g(Bruce)
|
|
major fix for endian handling of communication to server(Thomas,
|
|
Tatsuo)
|
|
Fix for Solaris assembler and include files(Yoshihiko Ichikawa)
|
|
allow underscores in usernames(Bruce)
|
|
pg_dumpall now returns proper status, portability fix(Bruce)
|
|
|
|
Release 6.1
|
|
|
|
The regression tests have been adapted and extensively modified for
|
|
the v6.1 release of Postgres.
|
|
Three new data types (datetime, timespan, and circle) have been
|
|
added to the native set of Postgres types. Points, boxes, paths, and
|
|
polygons have had their output formats made consistant across the
|
|
data types. The polygon output in misc.out has only been
|
|
spot-checked for correctness relative to the original regression
|
|
output.
|
|
Postgres v6.1 introduces a new, alternate optimizer which uses
|
|
genetic algorithms. These algorithms introduce a random behavior in
|
|
the ordering of query results when the query contains multiple
|
|
qualifiers or multiple tables (giving the optimizer a choice on
|
|
order of evaluation). Several regression tests have been modified to
|
|
explicitly order the results, and hence are insensitive to optimizer
|
|
choices. A few regression tests are for data types which are
|
|
inherently unordered (e.g. points and time intervals) and tests
|
|
involving those types are explicitly bracketed with set geqo to
|
|
'off' and reset geqo.
|
|
The interpretation of array specifiers (the curly braces around
|
|
atomic values) appears to have changed sometime after the original
|
|
regression tests were generated. The current ./expected/*.out files
|
|
reflect this new interpretation, which may not be correct!
|
|
The float8 regression test fails on at least some platforms. This
|
|
is due to differences in implementations of pow() and exp() and the
|
|
signaling mechanisms used for overflow and underflow conditions.
|
|
The "random" results in the random test should cause the "random"
|
|
test to be "failed", since the regression tests are evaluated using
|
|
a simple diff. However, "random" does not seem to produce random
|
|
results on my test machine (Linux/gcc/i686).
|
|
|
|
Migration to v6.1
|
|
|
|
This migration requires a complete dump of the 6.0 database and a
|
|
restore of the database in 6.1.
|
|
Those migrating from earlier 1.* releases should first upgrade to
|
|
1.09 because the COPY output format was improved from the 1.02
|
|
release.
|
|
|
|
Detailed Change List
|
|
|
|
Bug Fixes
|
|
---------
|
|
packet length checking in library routines
|
|
lock manager priority patch
|
|
check for under/over flow of float8(Bruce)
|
|
multi-table join fix(Vadim)
|
|
SIGPIPE crash fix(Darren)
|
|
large object fixes(Sven)
|
|
allow btree indexes to handle NULLs(Vadim)
|
|
timezone fixes(D'Arcy)
|
|
select SUM(x) can return NULL on no rows(Thomas)
|
|
internal optimizer, executor bug fixes(Vadim)
|
|
fix problem where inner loop in < or <= has no rows(Vadim)
|
|
prevent re-commuting join index clauses(Vadim)
|
|
fix join clauses for multiple tables(Vadim)
|
|
fix hash, hashjoin for arrays(Vadim)
|
|
fix btree for abstime type(Vadim)
|
|
large object fixes(Raymond)
|
|
fix buffer leak in hash indices (Vadim)
|
|
fix rtree for use in inner scan (Vadim)
|
|
fix gist for use in inner scan, cleanups (Vadim, Andrea)
|
|
avoid unnecessary local buffers allocation (Vadim, Massimo)
|
|
fix local buffers leak in transaction aborts (Vadim)
|
|
fix file manager memmory leaks, cleanups (Vadim, Massimo)
|
|
fix storage manager memmory leaks (Vadim)
|
|
fix btree duplicates handling (Vadim)
|
|
fix deleted tuples re-incarnation caused by vacuum (Vadim)
|
|
fix SELECT varchar()/char() INTO TABLE made zero-length
|
|
fields(Bruce)
|
|
many psql, pg_dump, and libpq memory leaks fixed using Purify (Igor)
|
|
|
|
Enhancements
|
|
------------
|
|
attribute optimization statistics(Bruce)
|
|
much faster new btree bulk load code(Paul)
|
|
BTREE UNIQUE added to bulk load code(Vadim)
|
|
new lock debug code(Massimo)
|
|
massive changes to libpg++(Leo)
|
|
new GEQO optimizer speeds table multi-table optimization(Martin)
|
|
new WARN message for non-unique insert into unique key(Marc)
|
|
update x=-3, no spaces, now valid(Bruce)
|
|
remove case-sensitive identifier handling(Bruce,Thomas,Dan)
|
|
debug backend now pretty-prints tree(Darren)
|
|
new Oracle character functions(Edmund)
|
|
new plaintext password functions(Dan)
|
|
no such class or insufficient privilege changed to distinct
|
|
messages(Dan)
|
|
new ANSI timestamp function(Dan)
|
|
new ANSI Time and Date types (Thomas)
|
|
move large chunks of data in backend(Martin)
|
|
multi-column btree indexes(Vadim)
|
|
new SET var TO value command(Martin)
|
|
update transaction status on reads(Dan)
|
|
new locale settings for character types(Oleg)
|
|
new SEQUENCE serial number generator(Vadim)
|
|
GROUP BY function now possible(Vadim)
|
|
re-organize regression test(Thomas,Marc)
|
|
new optimizer operation weights(Vadim)
|
|
new psql \z grant/permit option(Marc)
|
|
new MONEY data type(D'Arcy,Thomas)
|
|
tcp socket communication speed improved(Vadim)
|
|
new VACUUM option for attribute statistics, and for certain columns
|
|
(Vadim)
|
|
many geometric type improvements(Thomas,Keith)
|
|
additional regression tests(Thomas)
|
|
new datestyle variable(Thomas,Vadim,Martin)
|
|
more comparison operators for sorting types(Thomas)
|
|
new conversion functions(Thomas)
|
|
new more compact btree format(Vadim)
|
|
allow pg_dumpall to preserve database ownership(Bruce)
|
|
new SET GEQO=# and R_PLANS variable(Vadim)
|
|
old (!GEQO) optimizer can use right-sided plans (Vadim)
|
|
typechecking improvement in SQL parser(Bruce)
|
|
new SET, SHOW, RESET commands(Thomas,Vadim)
|
|
new \connect database USER option
|
|
new destroydb -i option (Igor)
|
|
new \dt and \di psql commands (Darren)
|
|
SELECT "\n" now escapes newline (A. Duursma)
|
|
new geometry conversion functions from old format (Thomas)
|
|
|
|
Source tree changes
|
|
-------------------
|
|
new configuration script(Marc)
|
|
readline configuration option added(Marc)
|
|
OS-specific configuration options removed(Marc)
|
|
new OS-specific template files(Marc)
|
|
no more need to edit Makefile.global(Marc)
|
|
re-arrange include files(Marc)
|
|
nextstep patches (Gregor Hoffleit)
|
|
removed WIN32-specific code(Bruce)
|
|
removed postmaster -e option, now only postgres -e option (Bruce)
|
|
merge duplicate library code in front/backends(Martin)
|
|
now works with eBones, international Kerberos(Jun)
|
|
more shared library support
|
|
c++ include file cleanup(Bruce)
|
|
warn about buggy flex(Bruce)
|
|
DG-UX, Ultrix, Irix, AIX portability fixes
|
|
|
|
Release v6.0
|
|
|
|
A dump/restore is required for those wishing to migrate data from
|
|
previous releases of Postgres.
|
|
|
|
Migration from v1.09 to v6.0
|
|
|
|
This migration requires a complete dump of the 1.09 database and a
|
|
restore of the database in 6.0.
|
|
|
|
Migration from pre-v1.09 to v6.0
|
|
|
|
Those migrating from earlier 1.* releases should first upgrade to
|
|
1.09 because the COPY output format was improved from the 1.02
|
|
release.
|
|
|
|
Detailed Change List
|
|
|
|
Bug Fixes
|
|
---------
|
|
ALTER TABLE bug - running postgress process needs to re-read table
|
|
definition
|
|
Allow vacuum to be run on one table or entire database(Bruce)
|
|
Array fixes
|
|
Fix array over-runs of memory writes(Kurt)
|
|
Fix elusive btree range/non-range bug(Dan)
|
|
Fix for hash indexes on some types like time and date
|
|
Fix for pg_log size explosion
|
|
Fix permissions on lo_export()(Bruce)
|
|
Fix unitialized reads of memory(Kurt)
|
|
Fixed ALTER TABLE ... char(3) bug(Bruce)
|
|
Fixed a few small memory leaks
|
|
Fixed EXPLAIN handling of options and changed full_path option name
|
|
Fixed output of group acl permissions
|
|
Memory leaks (hunt and destroy with tools like Purify(Kurt)
|
|
Minor improvements to rules system
|
|
NOTIFY fixes
|
|
New asserts for run-checking
|
|
Overhauled parser/analyze code to properly report errors and
|
|
increase speed
|
|
Pg_dump -d now handles NULL's properly(Bruce)
|
|
Prevent SELECT NULL from crashing server (Bruce)
|
|
Properly report errors when INSERT ... SELECT columns did not match
|
|
Properly report errors when insert column names were not correct
|
|
Psql \g filename now works(Bruce)
|
|
Psql fixed problem with multiple statements on one line with
|
|
multiple outputs
|
|
Removed duplicate system oid's
|
|
SELECT * INTO TABLE . GROUP/ORDER BY gives unlink error if table
|
|
exists(Bruce)
|
|
Several fixes for queries that crashed the backend
|
|
Starting quote in insert string errors(Bruce)
|
|
Submitting an empty query now returns empty status, not just " "
|
|
query(Bruce)
|
|
|
|
Enhancements
|
|
------------
|
|
Add EXPLAIN manual page(Bruce)
|
|
Add UNIQUE index capability(Dan)
|
|
Add hostname/user level access control rather than just hostname and
|
|
user
|
|
Add synonym of != for <>(Bruce)
|
|
Allow "select oid,* from table"
|
|
Allow BY,ORDER BY to specify columns by number, or by non-alias
|
|
table.column(Bruce)
|
|
Allow COPY from the frontend(Bryan)
|
|
Allow GROUP BY to use alias column name(Bruce)
|
|
Allow actual compression, not just reuse on the same page(Vadim)
|
|
Allow installation-configuration option to auto-add all local
|
|
users(Bryan)
|
|
Allow libpq to distinguish between text value '' and null(Bruce)
|
|
Allow non-postgres users with createdb privs to destroydb's
|
|
Allow restriction on who can create C functions(Bryan)
|
|
Allow restriction on who can do backend COPY(Bryan)
|
|
Can shrink tables, pg_time and pg_log(Vadim & Erich)
|
|
Change debug level 2 to print queries only, changed debug heading
|
|
layout(Bruce)
|
|
Change default decimal constant representation from float4 to
|
|
float8(Bruce)
|
|
European date format now set when postmaster is started
|
|
Execute lowercase function names if not found with exact case
|
|
Fixes for aggregate/GROUP processing, allow 'select
|
|
sum(func(x),sum(x+y) from z'
|
|
Gist now included in the distrubution(Marc)
|
|
Idend authentication of local users(Bryan)
|
|
Implement BETWEEN qualifier(Bruce)
|
|
Implement IN qualifier(Bruce)
|
|
Libpq has PQgetisnull()(Bruce)
|
|
Libpq++ improvements
|
|
New options to initdb(Bryan)
|
|
Pg_dump allow dump of oid's(Bruce)
|
|
Pg_dump create indexes after tables are loaded for speed(Bruce)
|
|
Pg_dumpall dumps all databases, and the user table
|
|
Pginterface additions for NULL values(Bruce)
|
|
Prevent postmaster from being run as root
|
|
Psql \h and \? is now readable(Bruce)
|
|
Psql allow backslashed, semicolons anywhere on the line(Bruce)
|
|
Psql changed command prompt for lines in query or in quotes(Bruce)
|
|
Psql char(3) now displays as (bp)char in \d output(Bruce)
|
|
Psql return code now more accurate(Bryan?)
|
|
Psql updated help syntax(Bruce)
|
|
Re-visit and fix vacuum(Vadim)
|
|
Reduce size of regression diffs, remove timezone name
|
|
difference(Bruce)
|
|
Remove compile-time parameters to enable binary distributions(Bryan)
|
|
Reverse meaning of HBA masks(Bryan)
|
|
Secure Authentication of local users(Bryan)
|
|
Speed up vacuum(Vadim)
|
|
Vacuum now had VERBOSE option(Bruce)
|
|
|
|
Source tree changes
|
|
-------------------
|
|
All functions now have prototypes that are compared against the
|
|
calls
|
|
Allow asserts to be disabled easly from Makefile.global(Bruce)
|
|
Change oid constants used in code to #define names
|
|
Decoupled sparc and solaris defines(Kurt)
|
|
Gcc -Wall compiles cleanly with warnings only from unfixable
|
|
constructs
|
|
Major include file reorganization/reduction(Marc)
|
|
Make now stops on compile failure(Bryan)
|
|
Makefile restructuring(Bryan, Marc)
|
|
Merge bsdi_2_1 to bsdi(Bruce)
|
|
Monitor program removed
|
|
Name change from Postgres95 to PostgreSQL
|
|
New config.h file(Marc, Bryan)
|
|
PG_VERSION now set to 6.0 and used by postmaster
|
|
Portability additions, including Ultrix, DG/UX, AIX, and Solaris
|
|
Reduced the number of #define's, centeralized #define's
|
|
Remove duplicate OIDS in system tables(Dan)
|
|
Remove duplicate system catalog info or report mismatches(Dan)
|
|
Removed many os-specific #define's
|
|
Restructured object file generation/location(Bryan, Marc)
|
|
Restructured port-specific file locations(Bryan, Marc)
|
|
Unused/uninialized variables corrected
|
|
|
|
Release v1.09
|
|
|
|
Sorry, we stopped keeping track of changes from 1.02 to 1.09. Some
|
|
of the changes listed in 6.0 were actually included in the 1.02.1 to
|
|
1.09 releases.
|
|
|
|
Release v1.02
|
|
|
|
Migration from v1.02 to v1.02.1
|
|
|
|
Here is a new migration file for 1.02.1. It includes the 'copy'
|
|
change and a script to convert old ascii files.
|
|
|
|
Note: The following notes are for the benefit of users who want
|
|
to migrate databases from postgres95 1.01 and 1.02 to postgres95
|
|
1.02.1.
|
|
If you are starting afresh with postgres95 1.02.1 and do not need
|
|
to migrate old databases, you do not need to read any further.
|
|
|
|
In order to upgrade older postgres95 version 1.01 or 1.02 databases
|
|
to version 1.02.1, the following steps are required:
|
|
|
|
1. Start up a new 1.02.1 postmaster
|
|
2. Add the new built-in functions and operators of 1.02.1 to 1.01 or
|
|
1.02 databases. This is done by running the new 1.02.1 server
|
|
against your own 1.01 or 1.02 database and applying the queries
|
|
attached at the end of thie file. This can be done easily through
|
|
psql. If your 1.01 or 1.02 database is named "testdb" and you
|
|
have cut the commands from the end of this file and saved them in
|
|
addfunc.sql:
|
|
% psql testdb -f addfunc.sql
|
|
Those upgrading 1.02 databases will get a warning when executing
|
|
the last two statements in the file because they are already
|
|
present in 1.02. This is not a cause for concern.
|
|
|
|
Dump/Reload Procedure
|
|
|
|
If you are trying to reload a pg_dump or text-mode 'copy tablename
|
|
to stdout' generated with a previous version, you will need to run
|
|
the attached sed script on the ASCII file before loading it into the
|
|
database. The old format used '.' as end-of-data, while '\.' is now
|
|
the end-of-data marker. Also, empty strings are now loaded in as ''
|
|
rather than NULL. See the copy manual page for full details.
|
|
|
|
sed 's/^\.$/\\./g' <in_file >out_file
|
|
|
|
If you are loading an older binary copy or non-stdout copy, there is
|
|
no end-of-data character, and hence no conversion necessary.
|
|
|
|
-- following lines added by agc to reflect the case-insensitive
|
|
-- regexp searching for varchar (in 1.02), and bpchar (in 1.02.1)
|
|
create operator ~* (leftarg = bpchar, rightarg = text, procedure =
|
|
texticregexeq);
|
|
create operator !~* (leftarg = bpchar, rightarg = text, procedure =
|
|
texticregexne);
|
|
create operator ~* (leftarg = varchar, rightarg = text, procedure =
|
|
texticregexeq);
|
|
create operator !~* (leftarg = varchar, rightarg = text, procedure =
|
|
texticregexne);
|
|
|
|
Detailed Change List
|
|
|
|
Source code maintenance and development
|
|
* worldwide team of volunteers
|
|
* the source tree now in CVS at ftp.ki.net
|
|
|
|
Enhancements
|
|
* psql (and underlying libpq library) now has many more options for
|
|
formatting output, including HTML
|
|
* pg_dump now output the schema and/or the data, with many fixes to
|
|
enhance completeness.
|
|
* psql used in place of monitor in administration shell scripts.
|
|
monitor to be depreciated in next release.
|
|
* date/time functions enhanced
|
|
* NULL insert/update/comparison fixed/enhanced
|
|
* TCL/TK lib and shell fixed to work with both tck7.4/tk4.0 and
|
|
tcl7.5/tk4.1
|
|
|
|
Bug Fixes (almost too numerous to mention)
|
|
* indexes
|
|
* storage management
|
|
* check for NULL pointer before dereferencing
|
|
* Makefile fixes
|
|
|
|
New Ports
|
|
* added SolarisX86 port
|
|
* added BSDI 2.1 port
|
|
* added DGUX port
|
|
|
|
Release v1.01
|
|
|
|
Migration from v1.0 to v1.01
|
|
|
|
The following notes are for the benefit of users who want to migrate
|
|
databases from postgres95 1.0 to postgres95 1.01.
|
|
If you are starting afresh with postgres95 1.01 and do not need to
|
|
migrate old databases, you do not need to read any further.
|
|
In order to postgres95 version 1.01 with databases created with
|
|
postgres95 version 1.0, the following steps are required:
|
|
|
|
1. Set the definition of NAMEDATALEN in src/Makefile.global to 16
|
|
and OIDNAMELEN to 20.
|
|
2. Decide whether you want to use Host based authentication.
|
|
a. If you do, you must create a file name "pg_hba" in your
|
|
top-level data directory (typically the value of your
|
|
$PGDATA). src/libpq/pg_hba shows an example syntax.
|
|
b. If you do not want host-based authentication, you can
|
|
comment out the line
|
|
HBA = 1
|
|
in src/Makefile.global
|
|
Note that host-based authentication is turned on by
|
|
default, and if you do not take steps A or B above, the
|
|
out-of-the-box 1.01 will not allow you to connect to 1.0
|
|
databases.
|
|
3. Compile and install 1.01, but DO NOT do the initdb step.
|
|
4. Before doing anything else, terminate your 1.0 postmaster, and
|
|
backup your existing $PGDATA directory.
|
|
5. Set your PGDATA environment variable to your 1.0 databases, but
|
|
set up path up so that 1.01 binaries are being used.
|
|
6. Modify the file $PGDATA/PG_VERSION from 5.0 to 5.1
|
|
7. Start up a new 1.01 postmaster
|
|
8. Add the new built-in functions and operators of 1.01 to 1.0
|
|
databases. This is done by running the new 1.01 server against
|
|
your own 1.0 database and applying the queries attached and
|
|
saving in the file 1.0_to_1.01.sql. This can be done easily
|
|
through psql. If your 1.0 database is name "testdb":
|
|
% psql testdb -f 1.0_to_1.01.sql
|
|
and then execute the following commands (cut and paste from
|
|
here):
|
|
-- add builtin functions that are new to 1.01
|
|
|
|
create function int4eqoid (int4, oid) returns bool as 'foo'
|
|
language 'internal';
|
|
create function oideqint4 (oid, int4) returns bool as 'foo'
|
|
language 'internal';
|
|
create function char2icregexeq (char2, text) returns bool as
|
|
'foo'
|
|
language 'internal';
|
|
create function char2icregexne (char2, text) returns bool as
|
|
'foo'
|
|
language 'internal';
|
|
create function char4icregexeq (char4, text) returns bool as
|
|
'foo'
|
|
language 'internal';
|
|
create function char4icregexne (char4, text) returns bool as
|
|
'foo'
|
|
language 'internal';
|
|
create function char8icregexeq (char8, text) returns bool as
|
|
'foo'
|
|
language 'internal';
|
|
create function char8icregexne (char8, text) returns bool as
|
|
'foo'
|
|
language 'internal';
|
|
create function char16icregexeq (char16, text) returns bool as
|
|
'foo'
|
|
language 'internal';
|
|
create function char16icregexne (char16, text) returns bool as
|
|
'foo'
|
|
language 'internal';
|
|
create function texticregexeq (text, text) returns bool as 'foo'
|
|
language 'internal';
|
|
create function texticregexne (text, text) returns bool as 'foo'
|
|
language 'internal';
|
|
|
|
-- add builtin functions that are new to 1.01
|
|
|
|
create operator = (leftarg = int4, rightarg = oid, procedure =
|
|
int4eqoid);
|
|
create operator = (leftarg = oid, rightarg = int4, procedure =
|
|
oideqint4);
|
|
create operator ~* (leftarg = char2, rightarg = text, procedure =
|
|
char2icregexeq);
|
|
create operator !~* (leftarg = char2, rightarg = text, procedure
|
|
= char2icregexne);
|
|
create operator ~* (leftarg = char4, rightarg = text, procedure =
|
|
char4icregexeq);
|
|
create operator !~* (leftarg = char4, rightarg = text, procedure
|
|
= char4icregexne);
|
|
create operator ~* (leftarg = char8, rightarg = text, procedure =
|
|
char8icregexeq);
|
|
create operator !~* (leftarg = char8, rightarg = text, procedure
|
|
= char8icregexne);
|
|
create operator ~* (leftarg = char16, rightarg = text, procedure
|
|
= char16icregexeq);
|
|
create operator !~* (leftarg = char16, rightarg = text, procedure
|
|
= char16icregexne);
|
|
create operator ~* (leftarg = text, rightarg = text, procedure =
|
|
texticregexeq);
|
|
create operator !~* (leftarg = text, rightarg = text, procedure =
|
|
texticregexne);
|
|
|
|
Detailed Change List
|
|
|
|
Incompatibilities:
|
|
* 1.01 is backwards compatible with 1.0 database provided the user
|
|
follow the steps outlined in the MIGRATION_from_1.0_to_1.01 file.
|
|
If those steps are not taken, 1.01 is not compatible with 1.0
|
|
database.
|
|
|
|
Enhancements:
|
|
* added PQdisplayTuples() to libpq and changed monitor and psql to
|
|
use it
|
|
* added NeXT port (requires SysVIPC implementation)
|
|
* added CAST .. AS ... syntax
|
|
* added ASC and DESC keywords
|
|
* added 'internal' as a possible language for CREATE FUNCTION
|
|
internal functions are C functions which have been statically
|
|
linked
|
|
into the postgres backend.
|
|
* a new type "name" has been added for system identifiers (table
|
|
names,
|
|
attribute names, etc.) This replaces the old char16 type. The
|
|
of name is set by the NAMEDATALEN #define in src/Makefile.global
|
|
* a readable reference manual that describes the query language.
|
|
* added host-based access control. A configuration file
|
|
($PGDATA/pg_hba)
|
|
is used to hold the configuration data. If host-based access
|
|
control
|
|
is not desired, comment out HBA=1 in src/Makefile.global.
|
|
* changed regex handling to be uniform use of Henry Spencer's regex
|
|
code
|
|
regardless of platform. The regex code is included in the
|
|
distribution
|
|
* added functions and operators for case-insensitive regular
|
|
expressions.
|
|
The operators are ~* and !~*.
|
|
* 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
|
|
|
|
Release v1.0
|
|
|
|
Detailed Change List
|
|
|
|
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 and others.
|
|
* updated pg_dump to work with new libpq
|
|
* \d has been added psql
|
|
Thanks to Keith Parks
|
|
* regexp performance for architectures that use POSIX regex has
|
|
been
|
|
improved due to caching of precompiled patterns.
|
|
Thanks to Alistair Crooks
|
|
* a new version of libpq++
|
|
Thanks to William Wanders
|
|
|
|
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
|
|
|
|
Detailed Change List
|
|
|
|
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
|
|
|
|
Detailed Change List
|
|
|
|
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
|
|
|
|
Initial release.
|
|
|