Update new HISTORY file for 7.3!
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Bruce Momjian
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HISTORY
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HISTORY
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Release Notes
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Release 7.3
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Release date: 2002-??-??
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Overview
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Major changes in this release:
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SCHEMA SUPPORT
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Schemas allow users to create objects in their own namespace
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so two people can have the same table with the same name.
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There is also a public schema for shared tables.
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DROP COLUMN
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PostgreSQL now support ALTER TABLE ... DROP COLUMN functionality.
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Table Functions
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Functions can now return entire tables, with multiple rows
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and multiple columns. You can specify these functions in
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the SELECT FROM clause.
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Privileges
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Functions and procedural languages now have privileges, and
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people running them can take on the privileges of their creators.
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Logging
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A variety of logging options have been enhanced.
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Prepared Queries
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For performance, PostgreSQL now supports prepared queries.
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Dependency Tracking
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PostgreSQL now records object dependencies, which allows
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improvements in many areas.
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Multibyte/Locale
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Both multibyte and locale are now enabled by default.
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Interfaces
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A large number of interfaces have been moved to
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http://gborg.postgresql.org where they can be developed
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and released independently.
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Functions/Identifiers
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By default, functions can now take up to 32 parameters, and
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identifiers can be up to 64 bytes long.
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----------------------------------------------------------------------
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Migration to version 7.3
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A dump/restore using "pg_dump" is required for those wishing to migrate
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data from any previous release.
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Observe the following incompatibilities:
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* Pre-6.3 clients are no longer supported.
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* pg_hba.conf now has a USER column and additional features.
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* Several GUC logging parameters have been renamed and improved.
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* LIMIT #,# is disabled, use LIMIT # OFFSET #.
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* LIMIT can now appear before FOR UPDATE, for portability.
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* INSERTs with column lists must specify all values, e.g.
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INSERT INTO tab (col1, col2) VALUES ('val1') is now invalid
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* DROP object now takes either CASCADE or RESTRICT to control
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whether dependent objects are also dropped
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* An index is now not automatically created for SERIAL columns
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* A SET inside an aborted transaction is now rolled back
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* COPY no longer considers missing trailing columns to be NULL
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* TIMESTAMP and TIME data types now default to WITHOUT TIMEZONE
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----------------------------------------------------------------------
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Changes
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2002-09-02
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Server Operation
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================
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Kerberos V Heimdal support (KTH)
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Add pg_locks table to show locks (Neil)
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Security fixes for password negotiation memory allocation (Neil)
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Remove support for version 0, <=6.2 FE/BE protocol (Tom)
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Reserve the last few backend slots for superusers, add GUC variable
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superuser_reserved_connections to control this (Nigel J. Andrews)
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Performance
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===========
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Improve startup by calling localtime() only once (Tom)
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Cache system catalog information in flat files for faster startup (Tom)
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Improve caching of index information (Tom)
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Optimizer improvements (Tom, Fernando Nasser)
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Catalog caches now store failed lookups (Tom)
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Hash function improvements (Neil)
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EXPLAIN now outputs as a query (Tom)
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Improve performance of query tokenization and network handling (Peter)
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Speed improvement for large object restore (Mario Weilguni)
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Mark expired index entries on first lookup, saving later heap fetches (Tom)
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Eliminate NULL bitmap padding when not required (Manfred)
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Display sort keys in EXPLAIN (Tom)
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Add BSD-licensed qsort() for Solaris, for performance (Bruce)
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Reduce per-row overhead by four bytes (Manfred Koizar)
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Fix GEQO optimizer bug (Neil Conway)
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Make WITHOUT OID actually save four bytes per row (Manfred Koizar)
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Add GUC default_statistics_target variable to specify ANALYZE buckets (Neil)
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Use local buffer cache for temporary tables so no WAL overhead (Tom)
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Privileges
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==========
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Add privileges on functions and procedural languages
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Add OWNER to CREATE DATABASE so superusers can create databases
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on behalf of unprivileged users. (Gavin Sherry, Tom)
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Add new object permission bits EXECUTE and USAGE (Tom)
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Add SET SESSION AUTHORIZATION DEFAULT and RESET SESSION AUTHORIZATION (Peter)
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Allow functions to be executed with the privilege of the function owner (Peter)
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Client Authentication
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=====================
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Add file to hold passwords using PGPASSWORDFILE environment variable
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(Alvaro Herrera)
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Server Configuration
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====================
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Server log messages now tagged with LOG, not DEBUG (Bruce)
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Add USER column to pg_hba.conf (Bruce)
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Have log_connections output two lines in log file (Tom)
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Remove debug_level from postgresql.conf, now SERVER_MIN_MESSAGES (Bruce)
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New ALTER DATABASE/USER ... SET command for per-user/db initialization (Peter)
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New GUC variables server_min_messages and client_min_messages which control
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which messages are sent to the server logs or client applications (Bruce)
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Allow pg_hba.conf to specify lists of users/dbs separated by commas,
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group names prepended with +, and file names prepended with @ (Bruce)
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Allow group names specified by +
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Add samegroup in pg_hba.conf for group name/dbname restriction (Bruce)
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Remove secondary password file capability (Bruce)
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Remove pg_passwd utility (Bruce)
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Add GUC variable db_user_namespace for db-local user names (Bruce)
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SSL improvements (Bear Giles)
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Make encryption of stored passwords the default (Bruce)
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Allow pg_statistics to be reset by calling pg_stat_reset() (Christopher)
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Add log_duration GUC parameter (Bruce)
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Rename GUC debug_print_query to log_statement (Bruce)
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Rename GUC show_query_stats to show_statement_stats (Bruce)
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Add GUC param log_min_error_statement to print query to logs on error (Gavin)
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Queries
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=======
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Make cursors insensitive, meaning their contents do not change (Tom)
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Disable LIMIT #,# syntax; now only LIMIT # OFFSET # supported (Bruce)
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Increase identifier length to 64 (Neil, Bruce)
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UNION fixes for merging >= 3 columns of different lengths (Tom)
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Add DEFAULT keyword to INSERT, i.e INSERT ... (..., DEFAULT, ) (Rod)
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Allow views to have default values using ALTER COLUMN ... SET DEFAULT (Neil)
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Fail on INSERTs with column lists that don't supply all column values,
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e.g. INSERT INTO tab (col1, col2) VALUES ('val1'); (Rod)
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Fix for join aliases (Tom)
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Improve reporting of invalid identifier and location (Tom, Gavin)
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Fix OPEN cursor(args) (Tom)
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Allow 'ctid' to be used in a view and currtid(viewname) (Hiroshi)
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Fix for CREATE TABLE AS with UNION (Tom)
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SQL99 syntax improvements (Thomas)
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Add GUC statement_timeout variable to cancel queries (Bruce)
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Allow prepared queries with PREPARE/EXECUTE (Neil)
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Allow FOR UPDATE to appear after LIMIT/OFFSET (Bruce)
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Add auto-transactions with GUC variable autocommit (Tom, David Van Wie)
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Object Manipulation
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===================
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Make equals signs optional in CREATE DATABASE (Gavin Sherry)
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Make ALTER TABLE OWNER to change index ownership (Neil)
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Add per-database and per-user startup commands, ALTER DATABASE ... SET and
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ALTER USER ... SET (Peter)
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New ALTER TABLE tabname ALTER COLUMN colname SET STORAGE controls TOAST
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storage, compression (John Gray)
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Add SCHEMA support with CREATE/DROP SCHEMA (Tom)
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Create schema for temporary tables (Tom)
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Add GUC variable search_path for namespace schema search (Tom)
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Add ALTER TABLE SET/DROP NOT NULL (Christopher)
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New CREATE FUNCTION volatility levels (Tom)
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Make rule names unique only per table (Tom)
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Add 'ON tablename' clause to DROP RULE and COMMENT ON RULE (Tom)
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Add ALTER TRIGGER RENAME (Joe)
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New current_schema() and current_schemas() inquiry functions (Tom)
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Allow functions to return multiple rows, also called table functions (Joe)
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Make WITH optional in CREATE DATABASE, for consistency (Bruce)
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Add object dependency tracking (Rod, Tom)
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Add RESTRICT/CASCADE to DROP commands (Rod)
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Add ALTER TABLE DROP non-CHECK CONSTRAINT (Rod)
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Auto-destroy sequence on DROP of table with SERIAL (Rod)
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Prevent column dropping if column is used by foreign key (Rod)
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Automatically drop constraints/functions when object is dropped (Rod)
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Add CREATE/DROP OPERATOR CLASS (Bill Studenmund, Tom)
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Add ALTER TABLE DROP COLUMN (Christopher)
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Prevent inherited columns from being removed or renamed (Alvaro Herrera)
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Add CREATE OR REPLACE VIEW, CREATE OR REPLACE RULE (Gavin, Neil, Tom)
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Utility Commands
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================
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Have COPY TO output embedded carriage returns and newlines as \r and \n (Tom)
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Allow DELIMITER in COPY FROM to be 8-bit clean (Tatsuo)
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Make pg_dump use ALTER TABLE ADD PRIMARY KEY, for performance (Neil)
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Disable brackets in multi-statement rules (Bruce)
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Disable VACUUM from being called inside a function (Bruce)
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Allow dropdb and other scripts to use identifiers with spaces (Bruce)
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Restrict comments to the current database
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Allow comments on operators, independent of the underlying function (Rod)
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Rollback SET commands in aborted transactions (Tom)
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Add 'SET LOCAL var = value' to set GUC variables for a single transaction (Tom)
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Allow ANALYZE to run in a transaction (Bruce)
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Improve COPY syntax using new WITH clauses, keep backward compatibility (Bruce)
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Fix pg_dump to consistently output tags in non-ASCII dumps (Bruce)
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Make foreign key constraints clearer in dump file (Rod)
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Add COMMENT ON CONSTRAINT (Rod)
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Allow COPY TO/FROM to specify column names (Brent Verner)
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Dump UNIQUE and PRIMARY KEY contraints as ALTER TABLE (Rod)
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Have SHOW output a query result (Joe)
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Generate failure on short COPY lines rather than pad NULLs (Neil)
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Fix CLUSTER to preserve all table attributes (Alvaro Herrera)
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New pg_settings table to view/modify GUC settings (Joe)
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Add smart quoting, portability improvements to pg_dump output (Peter)
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Dump serial columns out as SERIAL (Tom)
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Enable large file support, >2G for pg_dump (Peter)
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Disallow TRUNCATE on tables that are involved in referential constraints (Rod)
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Have TRUNCATE also auto-truncate the toast table of the relation (Tom)
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Add clusterdb utility that will auto-cluster an entire database based on
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previous CLUSTER operations (Alvaro Herrera)
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Overhaul pg_dumpall (Peter)
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Allow REINDEX of TOAST tables (Tom)
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Data Types and Functions
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========================
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Fix factorial(0) to return 1 (Bruce)
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Date/time/timezone improvements (Thomas)
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Fix for array slice extraction (Tom)
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Fix extract/date_part to report proper microseconds for timestamp (Tatsuo)
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Allow text_substr() and bytea_substr() to read TOAST values more
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efficiently (John Gray)
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Add DOMAIN type support (Rod)
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Make WITHOUT TIME ZONE the default for TIMESTAMP and TIME data types (Thomas)
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Allow alternate storage scheme of 64-bit integers for date/time types
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using --enable-integer-datetimes in configure (Thomas)
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Make timezone(timestamptz) return timestamp rather than a string (Thomas)
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Allow fractional seconds in date/time types for dates prior to 1BC (Thomas)
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Limit timestamp data types to 6 decimal places of precision (Thomas)
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Change timezone conversion functions from timetz() to timezone() (Thomas)
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Add GUC variables datestyle and timezone (Tom)
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Add OVERLAY(), which allows substitution of a substring in a string (Thomas)
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Add SIMILAR TO as a synonym for our existing operator "~" (Thomas)
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Add regular expression SUBSTRING(string FROM pat FOR escape) (Thomas)
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Add LOCALTIME and LOCALTIMESTAMP functions (Thomas)
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Remove ODBC-compatible empty parentheses from calls to SQL99 functions
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for which these parentheses do not match the standar (Thomas)
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Add appendix in the User's Guide which lists SQL92 features (Thomas)
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Allow macaddr data type to accept 12 hex digits with no separators (Mike Wyer)
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Add CREATE/DROP CAST (Thomas)
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Add IS DISTINCT FROM operator (Thomas)
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Add SQL99 TREAT() functionas synonym for CAST() (Thomas)
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Add pg_backend_pid() to output backend pid (Bruce)
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Allow inet arrays in /contrib/array (Neil)
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Add IS OF / IS NOT OF type predicate (Thomas)
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Allow bit string constants without fully-specified length (Thomas)
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Allow conversion between 8-byte integers and bit strings (Thomas)
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Implement hex literal conversion to bit string literal (Thomas)
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Allow table functions to appear in the FROM clause (Joe)
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Increase maximum number of function parameters to 32 (Bruce) momjian
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No longer automatically create index for SERIAL column (Tom)
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Add current_database() (Rod)
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Fix cash_words() to not overflow buffer (Tom)
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Add functions replace(), split(), to_hex() (Joe)
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Fix LIKE for bytea as a right-hand argument (Joe)
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Internationalization
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====================
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Add additional encodings (Korean (JOHAB), Thai (WIN874), Vietnamese (TCVN),
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Arabic (WIN1256), Simplified Chinese (GBK), Korean (UHC) (Eiji Tokuya)
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Enable locale support by default (Peter)
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Add GUC locale variables (Peter)
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Escape byes >= 0x7f for multibyte in PQescapeBytea/PQunescapeBytea (Tatsuo)
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Add locale awareness to regular expression character classes
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Enable multibyte support by default (Tatso)
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Add GUC variables client_encoding (Tom)
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Add GB18030 multibyte support (Bill Huang)
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Add CREATE/DROP CONVERSION, allowing loadable encodings (Tatsuo)
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Add pg_conversion table (Tatsuo)
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Add SQL99 CONVERT() function (Tatsuo)
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Server-side Languages
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=====================
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Allow recursive SQL function (Peter)
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Change PL/Tcl build to use configured compiler and Makefile.shlib (Peter)
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Have PL/PgSQL FOUND return proper value for PERFORM and SELECT INTO (Tom, Neil)
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Allow PL/PgSQL to handle quoted identifiers (Tom)
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Allow PL/pgSQL functions can return sets (Neil)
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Psql
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====
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Don't lowercase psql \connect database name for 7.2.0 compatibility (Tom)
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Add psql \timing to time user queries (Greg Sabino Mullane)
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Have psql \d show index information (Greg Sabino Mullane)
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New psql \dD shows domains (Jonathan Eisler)
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Allow psql to show rules on views (Paul ?)
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Fix for psql variable substitution (Tom)
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Allow psql \d to show temporary table structure (Tom)
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Allow psql \d to show foreign keys (Rod)
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Fix \? to honor \pset pager (Bruce)
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Have psql reports its version number on startup (Tom)
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Libpq
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=====
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Add PQunescapeBytea() function to libpq (Patrick Welche)
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Fix for sending large queries over non-blocking connections (Bernhard Herzog)
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Fix for libpq using timers on Win9X (David Ford)
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Allow libpq notify to handle servers with different-length indentifiers (Tom)
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Add libpq PQescapeString() and PQescapeBytea() to Win32 (Bruce)
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Fix for SSL with non-blocking connections (Jack Bates)
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Add libpq connection timeout parameter (Denis A Ustimenko)
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JDBC
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====
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jdbc compiles with jdk 1.4 (Dave)
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Allows jdbc to set loglevel by adding ?loglevel=X to the connection URL (Barry)
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Add jdbc Driver.info() message that prints out the version number (Barry)
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Added jdbc updateable result sets
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Add refresh row to jdbc (Dave)
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Add jdbc3 support (Barry)
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Fix jdbc MD5 encryption handling for multibyte servers (Jun Kawai)
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Add JDBC support for prepared statements (Barry)
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ECPG
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====
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Fixed ecpg bug concerning octal numbers in single quotes (Michael)
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Misc. Interfaces
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================
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Move /interfaces/libpgeasy to http://gborg.postgresql.org (Marc, Bruce)
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Improve python (Elliot Lee, Andrew Johnson, Greg Copeland)
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Add libpgtcl connection close event (Gerhard Hintermayer)
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Move /interfaces/libpq++ to http://gborg.postgresql.org (Marc, Bruce)
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Move /interfaces/odbc to http://gborg.postgresql.org (Marc)
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Move /interfaces/libpgeasy to http://gborg.postgresql.org (Marc, Bruce)
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Move /interfaces/perl5 to http://gborg.postgresql.org (Marc, Bruce)
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Remove /bin/pgaccess from main tree, now at http::/www.pgaccess.org (Bruce)
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Build and Install
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=================
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Fix for parallel make (Peter)
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AIX fixes for linking TCL (Andreas Zeugswetter)
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Allow plperl to build under Cygwin (Jason Tishler)
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Improve MIPS compiles (Peter, Oliver Elphick)
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Require autoconf version 2.53 (Peter)
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Require readline and zlib by default in configure (Peter)
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Allow Solaris to use Intimate Shared Memory (ISM), for performance
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(Scott Brunza, P.J. Josh Rovero)
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Always enable syslog in compile, remove --enable-syslog option (Tatsuo)
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Fix for Win9x DLL creation (Magnus Naeslund)
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Fix for link() usage by WAL code on Win32, Netware, BeOS (Jason Tishler)
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Add sys/types.h to c.h, remove from main files (Peter, Bruce)
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Fix AIX hang on SMP machines (Tomoyuki Niijima)
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Source Code
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===========
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Improve loadable module linking to use RTLD_NOW (Tom)
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New error levels WARNING, INFO, LOG, DEBUG[1-5] (Bruce)
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New src/port directory holds replace libc functions (Peter, Bruce)
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New pg_namespace system catalog for schemas (Tom)
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Add pg_class.relnamespace for schemas (Tom)
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Add pg_type.typnamespace for schemas (Tom)
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Add pg_proc.pronamespace for schemas (Tom)
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Restructure aggregates to have pg_proc entries (Tom)
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System relations now have their own namespace, pg_* test not required
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(Fernando Nasser)
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Rename TOAST index names to be *_index rather than *_idx (Neil)
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Add namespaces for operators, opclasses (Tom)
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Add additional checks to server control file (Thomas)
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New Polish FAQ (Marcin Mazurek)
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Add Posix semaphore support (Tom)
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Document need for reindex (Bruce)
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Rename some internal identifers to simplify Win32 compile (Jan, Katherine Ward)
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Add documentation on computing disk space (Bruce)
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Remove KSQO from GUC (Bruce)
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Fix memory leak in rtree (Kenneth Been)
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Modify a few error messages for consistency (Bruce) momjian
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Remove unused system table columns (Peter)
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Make system columns NOT NULL where appropriate (Tom)
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Clean up use of sprintf in favor of snprintf()
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Remove OPAQUE and create specific subtypes (Tom)
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Cleanups in array internal handling (Tom)
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Disallow pg_atoi('') (Bruce)
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Remove GUC parameter wal_files because WAL files are now recycled (Bruce)
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Contrib
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=======
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Gist fixes (Teodor Sigaev, Neil)
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Upgrade /contrib/mysql
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Add /contrib/dbsize which shows table sizes without vacuum (Peter)
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Add /contrib/intagg, integer aggregator routines (mlw)
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Improve /contrib/Oid2name (Neil, Bruce)
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Improve /contrib/tsearch (Teodor Sigaev)
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Improve /contrib/tsearch (Oleg)
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Cleanups of /contrib/rserver (Alexey V. Borzov)
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Update /contrib/oracle conversion utility (Gilles Darold)
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Update /contrib/dblink (Joe)
|
||||
Improve options supported by /contrib/vacuumlo (Mario Weilguni)
|
||||
Fixes, improvements to /contrib/intarray (Oleg, Andrey Oktyabrski)
|
||||
Add /contrib/reindexdb utility (Shaun Thomas)
|
||||
Add indexing to /contrib/isbn_issn (Dan Weston)
|
||||
Add /contrib/dbmirror (Steven Singer)
|
||||
Improve /contrib/pgbench (Neil)
|
||||
Add /contrib/tablefunc table function examples (Joe)
|
||||
Add /contrib/ltree data type for tree structures (Teodor Sigaev, Oleg Bartunov)
|
||||
Move /contrib/pg_controldata into main tree (Bruce)
|
||||
Fixes to /contrib/cube (Bruno Wolff)
|
||||
Improve /contrib/fulltextindex (Christopher)
|
||||
----------------------------------------------------------------------
|
||||
|
||||
Release 7.2.2
|
||||
|
||||
Release date: 2002-08-23
|
||||
|
||||
@ -1,5 +1,5 @@
|
||||
<!--
|
||||
$Header: /cvsroot/pgsql/doc/src/sgml/release.sgml,v 1.157 2002/09/02 20:04:39 tgl Exp $
|
||||
$Header: /cvsroot/pgsql/doc/src/sgml/release.sgml,v 1.158 2002/09/04 07:16:32 momjian Exp $
|
||||
-->
|
||||
|
||||
<appendix id="release">
|
||||
@ -68,6 +68,73 @@ Regular expression function SUBSTRING() implemented per SQL99
|
||||
|
||||
</sect1>
|
||||
|
||||
<sect1 id="release-7-3">
|
||||
<title>Release 7.3</title>
|
||||
|
||||
<note>
|
||||
<title>Release date</title>
|
||||
<simpara>2002-??-??</simpara>
|
||||
</note>
|
||||
|
||||
<sect2>
|
||||
<title>Overview</title>
|
||||
|
||||
<para>
|
||||
TO BE FILLED IN. SEE /HISTORY.
|
||||
</para>
|
||||
|
||||
<para>
|
||||
Major changes in this release:
|
||||
|
||||
<variablelist>
|
||||
<varlistentry>
|
||||
<term>XXX</term>
|
||||
<listitem>
|
||||
<para>
|
||||
TO BE FILLED IN. SEE /HISTORY.
|
||||
</para>
|
||||
</listitem>
|
||||
</varlistentry>
|
||||
</variablelist>
|
||||
</para>
|
||||
</sect2>
|
||||
|
||||
<sect2>
|
||||
<title>Migration to version 7.3</title>
|
||||
|
||||
<para>
|
||||
A dump/restore using <command>pg_dump</command> is required for
|
||||
those wishing to migrate data from any previous release.
|
||||
</para>
|
||||
|
||||
<para>
|
||||
Observe the following incompatibilities:
|
||||
|
||||
<itemizedlist>
|
||||
<listitem>
|
||||
<para>
|
||||
TO BE FILLED IN. SEE /HISTORY.
|
||||
</para>
|
||||
</listitem>
|
||||
|
||||
</itemizedlist>
|
||||
</para>
|
||||
|
||||
</sect2>
|
||||
|
||||
<sect2>
|
||||
<title>Changes</title>
|
||||
|
||||
<sect3>
|
||||
<title>XXX</title>
|
||||
<literallayout>
|
||||
TO BE FILLED IN. SEE /HISTORY.
|
||||
</literallayout>
|
||||
</sect3>
|
||||
</sect2>
|
||||
</sect1>
|
||||
|
||||
|
||||
<sect1 id="release-7-2-2">
|
||||
<title>Release 7.2.2</title>
|
||||
|
||||
|
||||
Loading…
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Reference in New Issue
Block a user