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Release notes updates from Neil Conway.
This commit is contained in:
Bruce Momjian
parent
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commit
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HISTORY
122
HISTORY
@ -2,12 +2,24 @@
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Release Notes
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Release 7.4
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_________________________________________________________________
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Overview
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Major changes in this release:
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Performance
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IN/NOT IN subqueries are now much more efficient
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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 better optimized
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Faster and more powerful regular expression code
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Function-inlining for simple SQL functions
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IPv6
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Full support for IPv6 connections and IPv6 address data types
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@ -19,7 +31,9 @@
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and other free space management improvements.
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Standards Compliance
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Implement information schema Support for read-only transactions
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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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@ -28,19 +42,6 @@
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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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|
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Improved GROUP BY processing by using hash buckets
|
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|
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New multi-key hash join capability
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|
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ANSI joins are now better optimized
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Faster and more powerful regular expression code
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Function-inlining for simple SQL functions
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Holdable Cursors
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Allow cursors to exist outside transactions
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@ -67,8 +68,8 @@
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in client applications and languages.
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* Error message wording has changed substantially 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 better
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optimized
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* ANSI inner joins may behave differently because they are now
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better 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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@ -144,11 +145,12 @@ Performance
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* Assume WHERE a.x = b.y and b.y = 42 also means a.x = 42 (Tom)
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* Allow hash/merge joins on complex joins (Tom)
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* Allow hash joins for more data types (Tom)
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* Allow join optimization of ANSI joins, disable with
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* Allow join optimization of ANSI inner joins, disable with
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join_collapse_limit (Tom)
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* Add from_collapse_limit to control conversion of subqueries to
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joins (Tom)
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* Use faster regular expression code from TCL (Henry Spencer, Tom)
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* Use faster and more powerful regular expression code from TCL
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(Henry Spencer, Tom)
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* Use bit-mapped relation sets in the optimizer (Tom)
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* Improve backend startup time (Tom)
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* Improve trigger/constraint performance (Stephan)
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@ -157,6 +159,8 @@ Performance
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* Improve hash index concurrency and speed (Tom)
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* Align shared buffers on 32-byte boundary for copy speed
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improvement (Manfred Spraul)
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* The NUMERIC datatype has been reimplemented for better performance
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(Tom)
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_________________________________________________________________
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Server Configuration
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@ -182,11 +186,11 @@ Server Configuration
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* New is_superuser read-only variable (Tom)
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* New server-side parameter log_error_verbosity to control error
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detail (Tom)
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* postgres --help-config now dumps server config variables (Aizaz
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Ahmed)
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* postgres --describe-config now dumps server config variables
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(Aizaz Ahmed, Peter)
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* Make default shared_buffers 1000 and max_connections 100, if
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possible (Tom)
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* Add new columns in pg_settings: context, type, source , min_val,
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* Add new columns in pg_settings: context, type, source, min_val,
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max_val (Joe)
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* New pg_hba.conf 'hostnossl' to prevent SSL connections (Jon
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Jensen)
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@ -237,10 +241,10 @@ Object Manipulation
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Utility Commands
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* Add ON COMMIT PRESERVE ROWS for temp tables (Gavin)
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* Add ON COMMIT clause to CREATE TABLE for temp tables (Gavin)
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* Allow cursors outside transactions using WITH HOLD (Neil)
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* Make MOVE/FETCH 0 actually move/fetch 0 (Bruce)
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* Cause FETCH 1 to return the current cursor row, or zero if at
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* Cause FETCH 1 to return the next cursor row number, or zero if at
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beginning/end of cursor, per SQL spec (Bruce)
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* Have MOVE return 0 or 1 depending on cursor position (Bruce)
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* Properly handle SCROLL with cursors, or report an error (Neil)
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@ -277,7 +281,8 @@ Utility Commands
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* Improve VACUUM performance on indexes by reducing WAL traffic
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(Tom)
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* Allow pg_ctl to better handle non-standard ports (Greg)
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* Functional indexes now support indexes on column expressions (Tom)
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* Functional indexes have been generalized into expressional indexes
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(Tom)
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* Syntax errors now reported as 'syntax error' rather than 'parse
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error' (Tom)
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* Have SHOW TRANSACTION_ISOLATION match input to SET
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@ -289,6 +294,7 @@ Utility Commands
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indexes (Tom)
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* pg_dump --use-set-session-authorization and --no-reconnect now do
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nothing, all dumps use SET SESSION AUTHORIZATION
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* Long options for pg_dump are now available on all platforms
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_________________________________________________________________
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Data Types and Functions
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@ -331,8 +337,7 @@ Data Types and Functions
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* Allow the creation of special LIKE indexes for non-C locales
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(Peter)
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* Disallow invalid timezone names (Tom)
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* Trim trailing spaces when CHAR() data is cast to VARCHAR or TEXT
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(Tom)
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* Trim trailing spaces when CHAR() is cast to VARCHAR or TEXT (Tom)
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* Make FLOAT(p) measure the precision p in bits, not decimal digits
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(Tom)
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* Add IPv6 support to the inet and cidr data types (Michael Graff)
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@ -340,7 +345,6 @@ Data Types and Functions
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(Michael Graff)
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* Have SHOW DATESTYLE generate output similar to that used by SET
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DATESTYLE (Tom)
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* Change DATESTYLE to output its value in a more common format (Tom)
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* Make EXTRACT(TIMEZONE) and SET/SHOW TIMEZONE follow the SQL
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convention for the sign of timezone offsets, ie, positive is east
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from UTC (Tom)
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@ -387,7 +391,8 @@ Psql
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* Add "\pset pager always" to always use pager (Greg)
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* Improve tab completion (Rod, Ross Reedstrom, Ian Barwick)
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* Reorder \? help into groupings (Harald Armin Massa, Bruce)
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* Add schema, cast, and conversion backslash commands (Christopher)
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* Add backslash commands for listing schemas, casts, and conversions
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(Christopher)
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* \encoding now changes based on client_encoding server variable
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(Tom)
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* Save edit history into readline history (Ross)
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@ -396,6 +401,7 @@ Psql
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* New '\set AUTOCOMMIT off' capability (Tom)
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* New '\set VERBOSITY' to control error detail (Tom)
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* New %T prompt string to show transaction status (Tom)
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* Long options for psql are now available on all platforms
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_________________________________________________________________
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Libpq
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@ -448,7 +454,7 @@ Source Code
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files (Tom)
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* Improved PPC locking primitive (Reinhard Max)
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* Embed LD_LIBRARY_PATH used for build process into binaries (Billy)
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* New palloc0 to allocate and clear memory (Bruce)
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* New palloc0 function to allocate and clear memory (Bruce)
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* Fix locking code for s390x CPU (64-bit) (Tom)
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* Allow OpenBSD to use local ident credentials (William Ahern)
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* Make query plan trees read-only to executor (Tom)
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@ -457,7 +463,8 @@ Source Code
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Karl Waclawek)
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* Use our own version of getopt_long() if needed (Peter)
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* Convert administration scripts to C (Peter)
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* Bison >=1.85 is now required for grammar changes
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* Bison >= 1.85 is now required to build the PostgreSQL grammar, if
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building from CVS
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* Merge documentation into one book (Peter)
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* Add Win32 compatibility functions (Bruce)
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* Allow client interfaces to compile under MinGW/Win32 (Bruce)
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@ -465,7 +472,7 @@ Source Code
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* Support Intel Linux compiler (Peter)
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* Improve Linux startup scripts (Slawomir Sudnik, Darko Prenosil)
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* Add support for AMD Opteron and Itanium (Jeffrey W. Baker, Bruce)
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* Remove configure --enable-recode
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* Remove --enable-recode option to configure
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* Generate a compile error if spinlock code is not found (Bruce)
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_________________________________________________________________
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@ -500,60 +507,11 @@ Contrib
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Other Uncategorized
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* EXTRACT(TIMEZONE) and "SET/SHOW TIMEZONE " now follow SQL sign
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convention (positive = east of UTC)
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* "DATESTYLE" can now be set to DMY, YMD, or MDY to specify input
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field order
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* Input date order must now be YYYY-MM-DD (with 4-digit year) or
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match DATESTYLE
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* Output of "SHOW DATESTYLE" is now in the same format accepted by
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"SET DATESTYLE"
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* PL/Python is now an untrusted language, and is renamed to
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plpythonu
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* Dollar sign ($) is no longer allowed in operator names
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* Dollar sign ($) can be a non-first character in identifiers
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* Precision in FLOAT(p) is now interpreted as bits, not decimal
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digits
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* Functional indexes have been generalized into expressional indexes
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* CHAR(n) to TEXT conversion automatically strips trailing blanks
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* Pattern matching operations can use indexes regardless of locale
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* New frontend/backend protocol supports many long-requested
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features
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* "SET AUTOCOMMIT TO OFF" is no longer supported; psql has an
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AUTOCOMMIT variable
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* Reimplementation of NUMERIC datatype for more speed
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* New regular expression package, many more regexp features (most of
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Perl5)
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* Can now do " EXPLAIN" ... "EXECUTE" to see plan used for a
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prepared query
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* Explicit "JOIN"s no longer constrain query plan, unless
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"JOIN_COLLAPSE_LIMIT = 1"
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* Performance of "foo IN (SELECT ...)" queries has been considerably
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improved
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* "FETCH 0" now re-fetches cursor's current row, per SQL spec
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* Revised executor state representation; plan trees are read-only to
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executor now
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* Information schema
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* Domains now support "CHECK" constraints
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* psql backslash commands for listing conversions, casts, and
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schemas
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* "TRUNCATE TABLE" is transaction-safe
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* "CLUSTER" can re-cluster a previously clustered table, or all such
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tables
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* Statement-level triggers
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* System can use either hash- or sort-based strategy for grouped
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aggregation
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* "ON COMMIT" options for temp tables
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* extra_float_digits option allows pg_dump to dump float data
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accurately
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* Long options for psql and pg_dump are now available on all
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platforms
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* Read-only transactions
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* Object owners can allow grantees to grant the privilege to others
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(grant option)
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* Added "contrib" module for pg_autovacuum which monitors inserts
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and deletes, and does "ANALYZE" or " VACUUM ANALYZE " when
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quantities exceed specified thresholds.
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_________________________________________________________________
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Release 7.3.4
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@ -1,5 +1,5 @@
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<!--
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$Header: /cvsroot/pgsql/doc/src/sgml/release.sgml,v 1.215 2003/10/22 05:09:12 momjian Exp $
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$Header: /cvsroot/pgsql/doc/src/sgml/release.sgml,v 1.216 2003/10/22 17:27:14 momjian Exp $
|
||||
-->
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||||
|
||||
<appendix id="release">
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@ -8,28 +8,26 @@ $Header: /cvsroot/pgsql/doc/src/sgml/release.sgml,v 1.215 2003/10/22 05:09:12 mo
|
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<sect1 id="release-devel">
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<title>Release 7.4</title>
|
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|
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<!--
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<para>
|
||||
Below is a subset of the changes that have gone into the
|
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development branch of <productname>PostgreSQL</productname> since
|
||||
version 7.3. For a complete list of changes, consult the CVS logs.
|
||||
</para>
|
||||
|
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Developers: When you add a feature, mention it here. This avoids
|
||||
lossiness when digging out the information from the CVS logs, and
|
||||
furthermore it advertises your feature to external parties at the
|
||||
earliest possible moment.
|
||||
|
||||
CDATA means the content is "SGML-free", so you can write without
|
||||
worries about funny characters.
|
||||
-->
|
||||
<literallayout><![CDATA[
|
||||
]]></literallayout>
|
||||
|
||||
<sect2><title>Overview</title>
|
||||
<para> Major changes in this release:
|
||||
<glosslist>
|
||||
|
||||
<glossentry><glossterm> Performance</glossterm>
|
||||
|
||||
<glossdef><para> IN/NOT IN subqueries are now much more efficient
|
||||
</para>
|
||||
|
||||
<para> Improved GROUP BY processing by using hash buckets</para>
|
||||
|
||||
<para> New multi-key hash join capability</para>
|
||||
|
||||
<para> ANSI joins are now better optimized</para>
|
||||
|
||||
<para> Faster and more powerful regular expression code</para>
|
||||
|
||||
<para> Function-inlining for simple SQL functions</para></glossdef>
|
||||
</glossentry>
|
||||
|
||||
<glossentry> <glossterm> IPv6</glossterm>
|
||||
|
||||
<glossdef><para> Full support for IPv6 connections and IPv6 address
|
||||
@ -50,8 +48,9 @@ pages, and other free space management improvements.</para></glossdef>
|
||||
|
||||
<glossentry><glossterm> Standards Compliance</glossterm>
|
||||
|
||||
<glossdef><para> Implement information schema Support for read-only
|
||||
transactions </para>
|
||||
<glossdef><para>Implement information schema</para>
|
||||
|
||||
<para>Support for read-only transactions </para>
|
||||
|
||||
<para>Make cursors comply more closely with the SQL standard
|
||||
</para></glossdef>
|
||||
@ -65,22 +64,6 @@ Protocol</glossterm>
|
||||
and adds error codes, status information, a binary protocol, error
|
||||
reporting verbosity, and cleaner startup packets.</para></glossdef>
|
||||
</glossentry>
|
||||
|
||||
<glossentry><glossterm> Performance</glossterm>
|
||||
|
||||
<glossdef><para> IN/NOT IN subqueries now perform as efficiently as
|
||||
joins</para>
|
||||
|
||||
<para> Improved GROUP BY processing by using hash buckets</para>
|
||||
|
||||
<para> New multi-key hash join capability</para>
|
||||
|
||||
<para> ANSI joins are now better optimized</para>
|
||||
|
||||
<para> Faster and more powerful regular expression code</para>
|
||||
|
||||
<para> Function-inlining for simple SQL functions</para></glossdef>
|
||||
</glossentry>
|
||||
|
||||
<glossentry><glossterm> Holdable Cursors</glossterm>
|
||||
|
||||
@ -116,7 +99,7 @@ required for those wishing to migrate data from any previous release.</para>
|
||||
in client applications and languages.</para></listitem>
|
||||
<listitem><para> Error message wording has changed substantially in this release,
|
||||
and error codes have been added.</para></listitem>
|
||||
<listitem><para> ANSI joins may behave differently because they are now better optimized</para></listitem>
|
||||
<listitem><para> ANSI inner joins may behave differently because they are now better optimized</para></listitem>
|
||||
<listitem><para> A number of server variables have been renamed for clarity</para></listitem>
|
||||
<listitem><para> MOVE/FETCH 0 now does nothing; return value of MOVE/FETCH 1/0
|
||||
varies based on the current offset in the cursor</para></listitem>
|
||||
@ -156,7 +139,7 @@ required for those wishing to migrate data from any previous release.</para>
|
||||
<listitem><para>Preserve free space information between postmaster restarts (Tom)</para></listitem>
|
||||
<listitem><para>Set proper schema permissions in initdb (Peter)</para></listitem>
|
||||
<listitem><para>Add start time to pg_stat_activity (Neil)</para></listitem>
|
||||
<listitem><para>New code to detect corrupt disk pages; erase with zero_damaged_pages (Tom)</para></listitem>
|
||||
<listitem><para>New code to detect corrupt disk pages; erase with zero_damaged_pages (Tom)</para></listitem>
|
||||
<listitem><para>New client/server protocol: faster, no username length limit, allow
|
||||
clean exit from COPY (Tom)</para></listitem>
|
||||
<listitem><para>Add transaction status, tableid, columnid to backend protocol (Tom)</para></listitem>
|
||||
@ -185,9 +168,9 @@ required for those wishing to migrate data from any previous release.</para>
|
||||
<listitem><para>Assume WHERE a.x = b.y and b.y = 42 also means a.x = 42 (Tom)</para></listitem>
|
||||
<listitem><para>Allow hash/merge joins on complex joins (Tom)</para></listitem>
|
||||
<listitem><para>Allow hash joins for more data types (Tom)</para></listitem>
|
||||
<listitem><para>Allow join optimization of ANSI joins, disable with join_collapse_limit (Tom)</para></listitem>
|
||||
<listitem><para>Allow join optimization of ANSI inner joins, disable with join_collapse_limit (Tom)</para></listitem>
|
||||
<listitem><para>Add from_collapse_limit to control conversion of subqueries to joins (Tom)</para></listitem>
|
||||
<listitem><para>Use faster regular expression code from TCL (Henry Spencer, Tom)</para></listitem>
|
||||
<listitem><para>Use faster and more powerful regular expression code from TCL (Henry Spencer, Tom)</para></listitem>
|
||||
<listitem><para>Use bit-mapped relation sets in the optimizer (Tom)</para></listitem>
|
||||
<listitem><para>Improve backend startup time (Tom)</para></listitem>
|
||||
<listitem><para>Improve trigger/constraint performance (Stephan)</para></listitem>
|
||||
@ -195,6 +178,7 @@ required for those wishing to migrate data from any previous release.</para>
|
||||
<listitem><para>Fix hash indexes which were broken in rare cases (Tom)</para></listitem>
|
||||
<listitem><para>Improve hash index concurrency and speed (Tom)</para></listitem>
|
||||
<listitem><para>Align shared buffers on 32-byte boundary for copy speed improvement (Manfred Spraul)</para></listitem>
|
||||
<listitem><para>The NUMERIC datatype has been reimplemented for better performance (Tom)</para></listitem>
|
||||
</itemizedlist></sect3>
|
||||
|
||||
<sect3><title>Server Configuration</title>
|
||||
@ -215,9 +199,9 @@ required for those wishing to migrate data from any previous release.</para>
|
||||
<listitem><para>Allow pg_hba.conf to accept netmasks in CIDR format (Andrew Dunstan)</para></listitem>
|
||||
<listitem><para>New is_superuser read-only variable (Tom)</para></listitem>
|
||||
<listitem><para>New server-side parameter log_error_verbosity to control error detail (Tom)</para></listitem>
|
||||
<listitem><para>postgres --help-config now dumps server config variables (Aizaz Ahmed)</para></listitem>
|
||||
<listitem><para>postgres --describe-config now dumps server config variables (Aizaz Ahmed, Peter)</para></listitem>
|
||||
<listitem><para>Make default shared_buffers 1000 and max_connections 100, if possible (Tom)</para></listitem>
|
||||
<listitem><para>Add new columns in pg_settings: context, type, source , min_val, max_val (Joe)</para></listitem>
|
||||
<listitem><para>Add new columns in pg_settings: context, type, source, min_val, max_val (Joe)</para></listitem>
|
||||
<listitem><para>New pg_hba.conf 'hostnossl' to prevent SSL connections (Jon Jensen)</para></listitem>
|
||||
<listitem><para>Remove geqo_random_seed server parameter (Tom)</para></listitem>
|
||||
</itemizedlist></sect3>
|
||||
@ -262,11 +246,11 @@ required for those wishing to migrate data from any previous release.</para>
|
||||
|
||||
<sect3><title>Utility Commands</title>
|
||||
<itemizedlist>
|
||||
<listitem><para>Add ON COMMIT PRESERVE ROWS for temp tables (Gavin)</para></listitem>
|
||||
<listitem><para>Add ON COMMIT clause to CREATE TABLE for temp tables (Gavin)</para></listitem>
|
||||
<listitem><para>Allow cursors outside transactions using WITH HOLD (Neil)</para></listitem>
|
||||
<listitem><para>Make MOVE/FETCH 0 actually move/fetch 0 (Bruce)</para></listitem>
|
||||
<listitem><para>Cause FETCH 1 to return the current cursor row, or zero if at
|
||||
beginning/end of cursor, per SQL spec (Bruce)</para></listitem>
|
||||
<listitem><para>Cause FETCH 1 to return the next cursor row number, or zero if at
|
||||
beginning/end of cursor, per SQL spec (Bruce)</para></listitem>
|
||||
<listitem><para>Have MOVE return 0 or 1 depending on cursor position (Bruce)</para></listitem>
|
||||
<listitem><para>Properly handle SCROLL with cursors, or report an error (Neil)</para></listitem>
|
||||
<listitem><para>Implement SQL92-compatible FIRST, LAST, ABSOLUTE n, RELATIVE n options
|
||||
@ -295,7 +279,7 @@ required for those wishing to migrate data from any previous release.</para>
|
||||
CHECK constraints (Christopher)</para></listitem>
|
||||
<listitem><para>Improve VACUUM performance on indexes by reducing WAL traffic (Tom)</para></listitem>
|
||||
<listitem><para>Allow pg_ctl to better handle non-standard ports (Greg)</para></listitem>
|
||||
<listitem><para>Functional indexes now support indexes on column expressions (Tom)</para></listitem>
|
||||
<listitem><para>Functional indexes have been generalized into expressional indexes (Tom)</para></listitem>
|
||||
<listitem><para>Syntax errors now reported as 'syntax error' rather than 'parse error' (Tom)</para></listitem>
|
||||
<listitem><para>Have SHOW TRANSACTION_ISOLATION match input to SET TRANSACTION_ISOLATION (Tom)</para></listitem>
|
||||
<listitem><para>Have COMMENT ON DATABASE on non-local database generate a warning (Rod)</para></listitem>
|
||||
@ -303,6 +287,7 @@ required for those wishing to migrate data from any previous release.</para>
|
||||
<listitem><para>Allow REINDEX to reliably reindex non-shared system catalog indexes (Tom)</para></listitem>
|
||||
<listitem><para>pg_dump --use-set-session-authorization and --no-reconnect now do nothing,
|
||||
all dumps use SET SESSION AUTHORIZATION</para></listitem>
|
||||
<listitem><para>Long options for <application>pg_dump</application> are now available on all platforms</para></listitem>
|
||||
</itemizedlist></sect3>
|
||||
|
||||
|
||||
@ -338,12 +323,11 @@ required for those wishing to migrate data from any previous release.</para>
|
||||
<listitem><para>Allow CIDR data type to be cast to text (Tom)</para></listitem>
|
||||
<listitem><para>Allow the creation of special LIKE indexes for non-C locales (Peter)</para></listitem>
|
||||
<listitem><para>Disallow invalid timezone names (Tom)</para></listitem>
|
||||
<listitem><para>Trim trailing spaces when CHAR() data is cast to VARCHAR or TEXT (Tom)</para></listitem>
|
||||
<listitem><para>Trim trailing spaces when CHAR() is cast to VARCHAR or TEXT (Tom)</para></listitem>
|
||||
<listitem><para>Make FLOAT(p) measure the precision p in bits, not decimal digits (Tom)</para></listitem>
|
||||
<listitem><para>Add IPv6 support to the inet and cidr data types (Michael Graff)</para></listitem>
|
||||
<listitem><para>Add family() function to report whether address is IPv4 or IPv6 (Michael Graff)</para></listitem>
|
||||
<listitem><para>Have SHOW DATESTYLE generate output similar to that used by SET DATESTYLE (Tom)</para></listitem>
|
||||
<listitem><para>Change DATESTYLE to output its value in a more common format (Tom)</para></listitem>
|
||||
<listitem><para>Make EXTRACT(TIMEZONE) and SET/SHOW TIMEZONE follow the SQL convention
|
||||
for the sign of timezone offsets, ie, positive is east from UTC (Tom)</para></listitem>
|
||||
<listitem><para>Fix date_trunc('quarter',...) (B?jthe Zolt?n)</para></listitem>
|
||||
@ -383,7 +367,7 @@ required for those wishing to migrate data from any previous release.</para>
|
||||
<listitem><para>Add "\pset pager always" to always use pager (Greg)</para></listitem>
|
||||
<listitem><para>Improve tab completion (Rod, Ross Reedstrom, Ian Barwick)</para></listitem>
|
||||
<listitem><para>Reorder \? help into groupings (Harald Armin Massa, Bruce)</para></listitem>
|
||||
<listitem><para>Add schema, cast, and conversion backslash commands (Christopher)</para></listitem>
|
||||
<listitem><para>Add backslash commands for listing schemas, casts, and conversions (Christopher)</para></listitem>
|
||||
<listitem><para>\encoding now changes based on client_encoding server variable (Tom)</para></listitem>
|
||||
<listitem><para>Save edit history into readline history (Ross)</para></listitem>
|
||||
<listitem><para>Improve \d display (Christopher)</para></listitem>
|
||||
@ -391,6 +375,7 @@ required for those wishing to migrate data from any previous release.</para>
|
||||
<listitem><para>New '\set AUTOCOMMIT off' capability (Tom)</para></listitem>
|
||||
<listitem><para>New '\set VERBOSITY' to control error detail (Tom)</para></listitem>
|
||||
<listitem><para>New %T prompt string to show transaction status (Tom)</para></listitem>
|
||||
<listitem><para>Long options for <application>psql</application> are now available on all platforms</para></listitem>
|
||||
</itemizedlist></sect3>
|
||||
|
||||
<sect3><title>Libpq</title>
|
||||
@ -441,7 +426,7 @@ required for those wishing to migrate data from any previous release.</para>
|
||||
<listitem><para>Prevent need for separate platform geometry regression result files (Tom)</para></listitem>
|
||||
<listitem><para>Improved PPC locking primitive (Reinhard Max)</para></listitem>
|
||||
<listitem><para>Embed LD_LIBRARY_PATH used for build process into binaries (Billy)</para></listitem>
|
||||
<listitem><para>New palloc0 to allocate and clear memory (Bruce)</para></listitem>
|
||||
<listitem><para>New palloc0 function to allocate and clear memory (Bruce)</para></listitem>
|
||||
<listitem><para>Fix locking code for s390x CPU (64-bit) (Tom)</para></listitem>
|
||||
<listitem><para>Allow OpenBSD to use local ident credentials (William Ahern)</para></listitem>
|
||||
<listitem><para>Make query plan trees read-only to executor (Tom)</para></listitem>
|
||||
@ -449,7 +434,7 @@ required for those wishing to migrate data from any previous release.</para>
|
||||
<listitem><para>Allow libpq to compile with Borland C++ compiler (Lester Godwin, Karl Waclawek)</para></listitem>
|
||||
<listitem><para>Use our own version of getopt_long() if needed (Peter)</para></listitem>
|
||||
<listitem><para>Convert administration scripts to C (Peter)</para></listitem>
|
||||
<listitem><para>Bison >=1.85 is now required for grammar changes</para></listitem>
|
||||
<listitem><para>Bison >= 1.85 is now required to build the PostgreSQL grammar, if building from CVS</para></listitem>
|
||||
<listitem><para>Merge documentation into one book (Peter)</para></listitem>
|
||||
<listitem><para>Add Win32 compatibility functions (Bruce)</para></listitem>
|
||||
<listitem><para>Allow client interfaces to compile under MinGW/Win32 (Bruce)</para></listitem>
|
||||
@ -457,7 +442,7 @@ required for those wishing to migrate data from any previous release.</para>
|
||||
<listitem><para>Support Intel Linux compiler (Peter)</para></listitem>
|
||||
<listitem><para>Improve Linux startup scripts (Slawomir Sudnik, Darko Prenosil)</para></listitem>
|
||||
<listitem><para>Add support for AMD Opteron and Itanium (Jeffrey W. Baker, Bruce)</para></listitem>
|
||||
<listitem><para>Remove configure --enable-recode</para></listitem>
|
||||
<listitem><para>Remove --enable-recode option to configure</para></listitem>
|
||||
<listitem><para>Generate a compile error if spinlock code is not found (Bruce)</para></listitem>
|
||||
</itemizedlist></sect3>
|
||||
|
||||
@ -490,61 +475,14 @@ required for those wishing to migrate data from any previous release.</para>
|
||||
|
||||
<sect3> <title> Other Uncategorized</title>
|
||||
<itemizedlist>
|
||||
<listitem><para><function>EXTRACT(TIMEZONE)</function> and <command>SET/SHOW
|
||||
TIMEZONE </command> now follow SQL sign convention
|
||||
(positive = east of UTC)</para></listitem>
|
||||
<listitem><para><command>DATESTYLE</command> can now be set to DMY, YMD, or MDY to specify input field order</para></listitem>
|
||||
<listitem><para>Input date order must now be YYYY-MM-DD (with 4-digit
|
||||
year) or match <envar>DATESTYLE</envar></para></listitem>
|
||||
<listitem><para>Output of <command>SHOW DATESTYLE</command> is now in the same
|
||||
format accepted by <command>SET DATESTYLE</command></para></listitem>
|
||||
<listitem><para>PL/Python is now an untrusted language, and is renamed
|
||||
to <function>plpythonu</function></para></listitem>
|
||||
<listitem><para>Dollar sign ($) is no longer allowed in operator names</para></listitem>
|
||||
<listitem><para>Dollar sign ($) can be a non-first character in identifiers</para></listitem>
|
||||
<listitem><para>Precision in <function> FLOAT(p)</function> is now interpreted as bits, not decimal digits</para></listitem>
|
||||
<listitem><para>Functional indexes have been generalized into expressional indexes</para></listitem>
|
||||
<listitem><para><function>CHAR(n)</function> to <function>TEXT</function> conversion automatically strips trailing blanks</para></listitem>
|
||||
<listitem><para>Pattern matching operations can use indexes regardless of locale</para></listitem>
|
||||
<listitem><para>New frontend/backend protocol supports many long-requested features</para></listitem>
|
||||
<listitem><para><command>SET AUTOCOMMIT TO OFF</command> is no longer
|
||||
supported; psql has an <envar>AUTOCOMMIT</envar> variable</para></listitem>
|
||||
<listitem><para>Reimplementation of NUMERIC datatype for more speed</para></listitem>
|
||||
<listitem><para>New regular expression package, many more regexp features (most of Perl5)</para></listitem>
|
||||
<listitem><para>Can now do <command> EXPLAIN</command> ... <command>EXECUTE</command> to see plan used for a prepared query</para></listitem>
|
||||
<listitem><para>Explicit <command>JOIN</command>s no longer constrain query
|
||||
plan, unless <command>JOIN_COLLAPSE_LIMIT = 1</command></para></listitem>
|
||||
<listitem><para>Performance of <command>foo IN (SELECT ...)</command> queries has been considerably improved</para></listitem>
|
||||
<listitem><para><command>FETCH 0</command> now re-fetches cursor's current row, per SQL spec</para></listitem>
|
||||
<listitem><para>Revised executor state representation; plan trees are read-only to executor now</para></listitem>
|
||||
<listitem><para>Information schema</para></listitem>
|
||||
<listitem><para>Domains now support <command>CHECK</command> constraints</para></listitem>
|
||||
<listitem><para><application>psql</application> backslash commands for listing conversions, casts, and schemas</para></listitem>
|
||||
<listitem><para><command>TRUNCATE TABLE</command> is transaction-safe</para></listitem>
|
||||
<listitem><para><command>CLUSTER</command> can re-cluster a previously clustered table, or all such tables</para></listitem>
|
||||
<listitem><para>Statement-level triggers</para></listitem>
|
||||
<listitem><para>System can use either hash- or sort-based strategy for grouped aggregation</para></listitem>
|
||||
<listitem><para><command>ON COMMIT</command> options for temp tables</para></listitem>
|
||||
<listitem><para>extra_float_digits option allows <application>pg_dump</application> to dump float data accurately</para></listitem>
|
||||
<listitem><para>Long options for <application>psql</application> and
|
||||
<application>pg_dump</application> are now available on all platforms</para></listitem>
|
||||
<listitem><para>Read-only transactions</para></listitem>
|
||||
<listitem><para>Object owners can allow grantees to grant the
|
||||
privilege to others (grant option)</para></listitem>
|
||||
|
||||
<listitem><para> Added <filename>contrib</filename> module for
|
||||
<application> pg_autovacuum </application> which monitors inserts and
|
||||
deletes, and does <command>ANALYZE</command> or <command> VACUUM
|
||||
ANALYZE </command> when quantities exceed specified
|
||||
thresholds.</para></listitem>
|
||||
|
||||
</itemizedlist></sect3>
|
||||
|
||||
</sect2>
|
||||
|
||||
</sect1>
|
||||
|
||||
|
||||
<sect1 id="release-7-3-4">
|
||||
<title>Release 7.3.4</title>
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user