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Update HISTORY for 7.4.
Neil Conway
This commit is contained in:
Bruce Momjian
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HISTORY
60
HISTORY
@ -15,38 +15,43 @@ Valid as of 2003-09-28. Update release.sgml later.
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Major changes in this release:
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IPv6
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Full support for IPv6 connections and IPv6 data types.
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Full support for IPv6 connections and IPv6 address data types
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SSL
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Major SSL improvements in performance and security.
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Major improvements in SSL performance and security
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Index Growth Prevention
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Allow free space map to efficiently reused empty index pages,
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and other free space improvements.
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and other free space management improvements.
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Standards Compliance
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Implement information schema
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Support for read-only transactions
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Make cursors comply more closely with the SQL standard
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New Client/Server Communication Protocol
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New protocol improves connection speed/reliability, and adds
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error codes, status information, a binary protocol, error
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reporting verbosity, and cleaner startup packets.
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New protocol improves connection speed/reliability, and adds
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error codes, status information, a binary protocol, error
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reporting verbosity, and cleaner startup packets.
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Performance
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IN/NOT IN subqueries now perform as efficiently as joins
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Improved GROUP BY procesing by using hack buckets
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Hash indexes now have better concurrency/reliability/performance
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New multi-key hash join capability
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ANSI joins are now fully optimized
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Faster regular expression code
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IN/NOT IN subqueries now perform as efficiently as joins
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Improved GROUP BY processing by using hash buckets
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New multi-key hash join capability
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ANSI joins are now fully optimized
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Faster regular expression code
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Function-inlining for simple SQL functions
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Cursors
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Allow cursors to exist outside transactions
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Holdable Cursors
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Allow cursors to exist outside transactions
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Threads
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libpq and ecpg are now fully thread-safe with --enable-thread-safety
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libpq and ecpg are now fully thread-safe with --enable-thread-safety
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Contrib
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New version of full text indexing (tsearch2)
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New autovacuum tool
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Array handling has been improved and moved into the main server
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New version of full text indexing (tsearch2)
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New autovacuum tool
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Array handling has been improved and moved into the main server
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_________________________________________________________________
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@ -58,18 +63,21 @@ Valid as of 2003-09-28. Update release.sgml later.
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Observe the following incompatibilities:
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* The server-side autocommit setting was removed an reimplemented
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in client applications and languages.
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* Error message wording has changed dramtically in this release,
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* Error message wording has changed dramatically in this release,
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and error codes have been added.
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* ANSI joins may behave differently because they are now fully optimized
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* A number of server variables have been renamed for clarity
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* MOVE/FETCH 0 now does nothing; return value of MOVE/FETCH 1/0
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varies based on the current offset in the cursor
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* COPY now can process carriage-return/line-feed and carraige-return
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* COPY now can process carriage-return/line-feed and carriage-return
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terminated files. Literal carriage-returns and line-feeds are no
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longer accepted as data values; use \r and \n instead.
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* Auto-trim spaces when converting from CHAR() to VARCHAR()/TEXT
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* Trailing spaces are now trimmed when converting from CHAR(n) to
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VARCHAR(n)/TEXT
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* FLOAT(p) now measures 'p' in bits, not digits
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* Date values now must match the ordering specified by DateStyle
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* The oidrand(), oidsrand(), and userfntest() functions have been
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removed.
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_________________________________________________________________
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@ -177,14 +185,14 @@ Change EXECUTE INTO to CREATE TABLE AS EXECUTE (Peter)
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Object Manipulation
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Make CREATE SEQUENCE grammar more SQL1999 standards compliant (Neil)
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Add FOR EACH STATEMENT statement-level triggers (Neil Conway)
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Add FOR EACH STATEMENT statement-level triggers (Neil)
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Add DOMAIN CHECK constraints (Rod)
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Add ALTER DOMAIN .. SET / DROP NOT NULL, SET / DROP DEFAULT, ADD / DROP
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CONSTRAINT (Rod)
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Fix several zero-column table bugs (Tom)
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Have ALTER TABLE ... ADD PRIMARY KEY add NOT NULL constraint (Rod)
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Add ALTER DOMAIN OWNER (Rod)
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Add ALTER TABLE ... WITHOUT OIDS? (Rod)
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Add ALTER TABLE ... WITHOUT OIDS (Rod)
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Add ALTER SEQUENCE to modify min/max/increment/cache/cycle values (Rod)
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Add ALTER TABLE ... CLUSTER ON (Alvaro Herrera)
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Improve DOMAIN automatic type casting (Rod, Tom)
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@ -225,7 +233,7 @@ Have pg_dumpall use GRANT/REVOKE to dump database-level permissions (Tom)
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Allow pg_dumpall to support the -a, -s, -x options of pg_dump (Tom)
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Prevent pg_dump from lowercasing identifiers specified on the command line (Tom)
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Allow PREPARE/bind of utility commands like FETCH and EXPLAIN (Tom)
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Allow EXPLAIN EXECUTE (Neil)
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Add EXPLAIN EXECUTE (Neil)
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Allow pg_get_constraintdef() to support UNIQUE, PRIMARY KEY and
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CHECK constraints (Christopher)
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Improve VACUUM performance on indexes by reducing WAL traffic (Tom)
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@ -235,7 +243,7 @@ Syntax errors now reported as 'syntax error' rather than 'parse error' (Tom)
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Have SHOW TRANSACTION_ISOLATION match input to SET TRANSACTION_ISOLATION (Tom)
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Have COMMENT ON DATABASE on non-local database generate a warning (Rod)
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Improve reliability of LISTEN/NOTIFY (Tom)
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Allow REINDEX to reliabily reindex all indexes, except global ones (Tom)
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Allow REINDEX to reliably reindex non-shared system catalog indexes (Tom)
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pg_dump --use-set-session-authorization and --no-reconnect now do nothing,
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all dumps use SET SESSION AUTHORIZATION
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@ -289,7 +297,7 @@ Add new DateStyle values MDY, DMY, and YMD, honor US and European for
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'now' will no longer work as a column default, use now() (change required for
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prepared statements) (Tom)
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Assume NaN value to be larger than any other value in MIN()/MAX() (Tom)
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Prevent interval from supressing ':00' seconds display
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Prevent interval from suppressing ':00' seconds display
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New pg_get_triggerdef(prettyprint) and pg_constraint_is_visible() functions
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Allow time to be specified as '040506' or '0405' (Tom)
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