mirror of https://github.com/postgres/postgres
Remove old TODO items. Add some to release.sgml.
This commit is contained in:
Bruce Momjian
parent
1dcf5907c4
commit
b1d25149fb
28
HISTORY
28
HISTORY
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@ -36,7 +36,6 @@ Migration to v7.0
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can use pg_upgrade to upgrade to this release.
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Detailed Change List
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Bug Fixes
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---------
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Prevent function calls with more than maximum number of arguments (Tom)
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@ -55,7 +54,7 @@ Improve communication of user table modifications to other running backends (Tom
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Fix handling of temp tables in complex situations (Bruce, Tom)
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Allow table locking when tables opened, improving concurrent reliability (Tom)
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Properly quote sequence names in pg_dump (Ross J. Reedstrom)
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Prevent DESTROY DATABASE while others accessing
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Prevent DROP DATABASE while others accessing
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Prevent any rows from being returned by GROUP BY if no rows processed (Tom)
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Fix SELECT COUNT(1) FROM table WHERE ...' if no rows matching WHERE (Tom)
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Fix pg_upgrade so it works for MVCC(Tom)
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@ -99,6 +98,20 @@ Fixes to CHAR
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Fix log() on numeric type (Tom)
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Deprecate ':' and ';' operators
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Allow vacuum of temporary tables
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Disallow inherited columns with the same name as new columns
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Recover or force failure when disk space is exhausted(Hiroshi)
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Fix INSERT INTO ... SELECT with AS columns matching result columns
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Fix INSERT ... SELECT ... GROUP BY groups by target columns not source columns(Tom)
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Fix CREATE TABLE test (a char(5) DEFAULT text '', b int4) with INSERT(Tom)
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Fix UNION with LIMIT
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Fix CREATE TABLE x AS SELECT 1 UNION SELECT 2
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Fix CREATE TABLE test(col char(2) DEFAULT user)
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Fix mismatched types in CREATE TABLE ... DEFAULT
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Fix SELECT * FROM pg_class where oid in (0,-1)
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Fix SELECT COUNT('asdf') FROM pg_class WHERE oid=12
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Prevent user who can create databases can modifying pg_database table(Peter E)
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Fix btree to give a useful elog when key > 1/2 (page - overhead)(Tom)
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Fix INSERT of 0.0 into DECIMAL(4,4) field(Tom)
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Enhancements
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------------
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@ -192,7 +205,7 @@ Enable backward sequential scan even after reaching EOF (Hiroshi)
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Add btree indexing of boolean values, >= and <= (Don Baccus)
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Print current line number when COPY FROM fails (Massimo)
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Recognize special case of POSIX time zone: "GMT+8" and "GMT-8" (Thomas)
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Add DEC as synonym for "DECIMAL (Thomas)
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Add DEC as synonym for "DECIMAL" (Thomas)
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Add SESSION_USER as SQL92 keyword, same as CURRENT_USER (Thomas)
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Implement column aliases (aka correlation names) and join syntax (Thomas)
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Allow queries like SELECT a FROM t1 tx (a) (Thomas)
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@ -220,6 +233,10 @@ Update pgaccess to 0.98.5
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New SET SEED command
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New pg_options.sample file
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New SET FSYNC command (Massimo)
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Allow pg_descriptions when creating tables
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Allow pg_descriptions when creating types, columns, and functions
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Allow psql \copy to allow delimiters(Peter E)
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Allow psql to print nulls as distinct from "" [null](Peter E)
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Types
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-----
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@ -263,6 +280,8 @@ Allow X=-Y operators (Tom)
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Add exp() and ln() as NUMERIC types
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Allow SELECT float8(COUNT(*)) / (SELECT COUNT(*) FROM int4_tbl) FROM int4_tbl
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GROUP BY f1; (Tom)
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Allow LOCALE to use indexes in regular expression searches(Tom)
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Allow creation of functional indexes to use default types
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Performance
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-----------
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@ -304,6 +323,9 @@ Reduce optimizer internal housekeeping of join paths for speedup (Tom)
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Major subquery speedup (Tom)
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Fewer fsync writes when fsync is not disabled(Tom)
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Improved LIKE optimizer estimates(Tom)
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Prevent fsync in SELECT-only queries(Vadim)
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Make index creation use psort code, because it is now faster(Tom)
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Allow creation of sort temp tables > 1 Gig
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Source Tree Changes
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-------------------
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87
doc/TODO
87
doc/TODO
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@ -16,66 +16,32 @@ the directory pgsql/doc/TODO.detail/ under that name.
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RELIABILITY
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-----------
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RESOURCES
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* -Disallow inherited columns with the same name as new columns
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* -Elog() does not free all its memory
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* -spinlock stuck problem when elog(FATAL) and elog(ERROR) inside bufmgr
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* -Recover or force failure when disk space is exhausted(Hiroshi)
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PARSER
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* -INSERT INTO ... SELECT with AS columns matching result columns problem
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* SELECT pg_class FROM pg_class generates strange error
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* Alter TABLE ADD COLUMN does not honor DEFAULT, add CONSTRAINT
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* -Select a[1] FROM test fails, it needs test.a[1](Tom)
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* -Array index references without table name cause problems [array](Tom)
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* Creating index of TIMESTAMP & RELTIME fails, or rename to DATETIME(Thomas)
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* SELECT foo UNION SELECT foo is incorrectly simplified to SELECT foo
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* -INSERT ... SELECT ... GROUP BY groups by target columns not source columns(Tom)
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* -CREATE TABLE test (a char(5) DEFAULT text '', b int4) fails on INSERT(Tom)
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* -UNION with LIMIT fails
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* Unique index on base column not honored on inserts from inherited table
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INSERT INTO inherit_table (unique_index_col) VALUES (dup) should fail
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[inherit]
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* -CREATE TABLE x AS SELECT 1 UNION SELECT 2 fails
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* -CREATE TABLE test(col char(2) DEFAULT user) fails in length restriction
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* -mismatched types in CREATE TABLE ... DEFAULT causes problems [default]
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* -SELECT ... UNION ... ORDER BY fails when sort expr not in result
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list, ORDER BY is applied only to the first SELECT
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* Be smarter about promoting types when UNION merges different data types
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* redesign INSERT ... SELECT to have two levels of target list
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* -select * from pg_class where oid in (0,-1)
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* have INTERSECT/EXCEPT prevent duplicates unless ALL is specified
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* -prevent primary key that exceeds max index columns [primary]
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* -SELECT COUNT('asdf') FROM pg_class WHERE oid=12 crashes
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* SELECT DISTINCT ON col1 col1 col2 FROM tab1 is broken [distinct]
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* -require SELECT DISTINCT target list to have all ORDER BY columns
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* -When using aggregates + GROUP BY, no rows in should yield no rows out(Tom)
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* -Allow HAVING to use comparisons that have no aggregates(Tom)
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* -Allow COUNT(DISTINCT col))(TOm)
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* SELECT 'x'::varchar(10) INTO newtable; fails
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* SELECT col::DECIMAL(12,10); fails
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VIEWS
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* Views containing aggregates sometimes fail(Jan)
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* -Views with spaces in view name fail when referenced
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* Creating view and inheriting the view causes view* to show
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duplicates(inherit)
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* Disallow LOCK on view
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MISC
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* -User who can create databases can modify pg_database table(Peter E)
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* Plpgsql does not handle quoted mixed-case identifiers
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* -Fix btree to give a useful elog when key > 1/2 (page - overhead)(Tom)
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* -pg_dump should preserve primary key information(Peter E)
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* -plpgsql regression tests fails on BSD/OS
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* -database names with spaces fail
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* -insert of 0.0 into DECIMAL(4,4) field fails(Tom)
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* -* Interlock to prevent DROP DATABASE on a database with running backendsInterlock to prevent DROP DATABASE on a database with running backends
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* Buffer reference counting bugfixes
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* Fix libpq bug that causes it to drop backend error message sent
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just before connection closure (ie, any FATAL error message)
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@ -91,30 +57,24 @@ ENHANCEMENTS
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URGENT
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* -Add referential integrity(Jan)[primary]
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* Add MATCH PARTIAL referential integrity
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* Foreign key does not check that columns referenced form a primary key
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or constrained by UNIQUE
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* Add OUTER joins, left and right[outer](Thomas, Bruce)
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* Allow long tuples by chaining or auto-storing outside db (TOAST)(Jan)
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* -Eliminate limits on query length
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* Fix memory leak for expressions[memory](Tom?)
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* -Fix memory leak for aggregates(Tom)
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ADMIN
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* -Better interface for adding to pg_group(Peter E)
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* More access control over who can create tables and access the database
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* Test syslog functionality
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* Allow elog() to return error codes, not just messages
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* Allow international error message support and add error codes
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* -Generate postmaster pid file and remove flock/fcntl lock code[flock](Tatsuo)
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* Add ability to specifiy location of lock/socket files [flock]
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* Unify configuration into one configuration file
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TYPES
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* -Add BIT, BIT VARYING
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* Nchar (as distinguished from ordinary varchar),
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* Domain capability
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* Add STDDEV/VARIANCE() function for standard deviation computation/variance
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@ -124,23 +84,16 @@ TYPES
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o Not to stuff everything as files in a single directory, hash dirs
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o Allow large object vacuuming
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o Tables that start with xinv confused to be large objects
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* -Allow pg_descriptions when creating tables
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* -Allow pg_descriptions when creating types, columns, and functions
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* Add IPv6 capability to INET/CIDR types
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* Make a separate SERIAL type?
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* Store binary-compatible type information in the system
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* Add support for & operator
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* Allow LOCALE on a per-column basis, default to ASCII
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* -Allow LOCALE to use indexes in regular expression searches(Tom)
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* -Allow array on int8[](Thomas)
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* Allow nulls in arrays
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* Allow arrays to be ORDER'ed
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* Remove Money type, add money formatting for decimal type
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* Declare typein/out functions in pg_proc with a special "C string" data type
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* Add non-large-object binary field
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* -Add index on NUMERIC/DECIMAL type(Jan)
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* -Make Absolutetime/Relativetime int4 because time_t can be int8 on some ports
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(Peter E)
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* Functions returning sets don't really work right[function]
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* Make type equivalency apply to aggregates(Peter E.)
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@ -154,17 +107,13 @@ INDEXES
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* Allow CREATE INDEX zman_index ON test (date_trunc( 'day', zman ) datetime_ops)
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fails index can't store constant parameters
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* -Allow creation of functional indexes to use default types
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* -Permissions on indexes, prevent them(Peter E)
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* Allow SQL function indexes
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* Add FILLFACTOR to index creation
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* -Allow indexing of LIKE with localle character sets
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* -Allow indexing of more than eight columns
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COMMANDS
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* ALTER TABLE ADD COLUMN to inherited table put column in wrong place [inherit]
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* -Add ALTER TABLE DROP/ALTER COLUMN feature(Peter E)
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* Add ALTER TABLE DROP/ALTER COLUMN feature(Peter E)
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* Allow CLUSTER on all tables at once, and improve CLUSTER, loses NOT
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NULL specification, indexes, permissions, etc on table[cluster]
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* Add SIMILAR TO to allow character classes, 'pg_[a-c]%'
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@ -174,7 +123,6 @@ COMMANDS
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* Allow ESCAPE '\' at the end of LIKE for ANSI compliance [like]
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* Rewrite the LIKE handling by rewriting the user string with the
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supplied ESCAPE [like]
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* -Move LIKE index optimization handling to the optimizer(Tom)
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* Allow RULE recompilation
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* Support UNION/INTERSECT/EXCEPT in sub-selects
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* Allow DELETE and UPDATE to use inheritance using tablename*
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@ -184,12 +132,7 @@ CLIENTS
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* Make NULL's come out at the beginning or end depending on the
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ORDER BY direction
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* -Allow flag to control COPY input/output of NULLs(Peter E)
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* Update reltuples from COPY command
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* -Allow psql \copy to allow delimiters(Peter E)
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* -Add a function to return the last inserted oid, for use in psql
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scripts (Peter E)
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* -Allow psql to print nulls as distinct from "" [null](Peter E)
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* fix array handling for ECPG
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* add pg_dump option to dump type names as standard ANSI types
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* allow psql \d to show primary and foreign keys
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@ -212,26 +155,18 @@ MISC
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* Certain indexes will not shrink, i.e. oid indexes with many inserts(Vadim)
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* Restore unused oid's on backend exit if no one else has gotten oids
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* Have UPDATE/DELETE clean out indexes
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* -Allow WHERE restriction on ctid(Hiroshi)
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* Allow cursors to be DECLAREd/OPENed/CLOSEed outside transactions
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* Allow DELETE WHERE CURRENT OF cursor
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* -Allow PQrequestCancel() to terminate when in waiting-for-lock state
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* Transaction log, so re-do log can be on a separate disk by
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with after-row images(Vadim) [logging](Vadim)(in-progress)
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* Populate backend status area and write program to dump status data
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* Make oid use unsigned int more reliably, pg_atoi()
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* -Allow subqueries in target list(Tom)
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* Put sort files, large objects in their own directory
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* Do autocommit so always in a transaction block(?)
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* Show location of syntax error in query [yacc]
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* Redesign the function call interface to handle NULLs better[function](Tom)
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* -Document/trigger/rule so changes to pg_shadow recreate pg_pwd
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[pg_shadow](Peter E.)
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* Missing optimizer selectivities for date, r-tree, etc. [optimizer]
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* -Overhaul mdmgr/smgr to fix double unlinking and double opens, cleanup
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* Overhaul bufmgr/lockmgr/transaction manager
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* -Add PL/Perl(Mark Hollomon)
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* -Add option for postgres user have a password by default(Peter E)
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* Add configure test to check for C++ need for *.h and namespaces
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* Allow BLCKSZ <= 64k, not <= 32k
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* redesign UNION structures to have separarate target lists
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@ -243,34 +178,22 @@ PERFORMANCE
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FSYNC
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* Allow transaction commits with rollback with no-fsync performance [fsync](Vadim)
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* -Prevent fsync in SELECT-only queries(Vadim)
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INDEXES
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* Use indexes in ORDER BY for min(), max()
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* Use index to restrict rows returned by multi-key index when used with
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non-consecutive keys or OR clauses, so fewer heap accesses
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* -Convert function(constant) into a constant for index use(Bernard Frankpitt)
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* Improve LIMIT processing by using index to limit rows processed [limit]
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* Have optimizer take LIMIT into account when considering index scans [limit]
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* -Make index creation use psort code, because it is now faster(Tom)
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* -Allow creation of sort temp tables > 1 Gig
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* -Create more system table indexes for faster cache lookups
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* -fix indexscan() so it does leak memory by not requiring caller to
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free(Tom)
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* -Improve _bt_binsrch() to handle equal keys better, remove _bt_firsteq()(Tom)
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* Allow SELECT * FROM tab WHERE int2col = 4 use int2col index, int8,
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float4, numeric/decimal too [optimizer]
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* -Allow optimizer to prefer plans that match ORDER BY(Tom)
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* Include heap CTID in btree index keys, remove equal-key cruft from btree
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CACHE
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* Cache most recent query plan(s) [prepare]
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* Shared catalog cache, reduce lseek()'s by caching table size in shared area
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* -elog() flushes cache, try invalidating just entries from current xact,
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perhaps using invalidation cache
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MISC
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@ -278,11 +201,9 @@ MISC
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* Allow char() not to use variable-sized header to reduce disk size
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* Allow char1 data type that takes one byte of storage
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* Do async I/O to do better read-ahead of data
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* -Fix memory exhaustion when using many OR's [cnfify](Tom)
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* Get faster regex() code from Henry Spencer <henry@zoo.utoronto.ca>
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when it is available
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* Use mmap() rather than SYSV shared memory(?)
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* -Process const = const parts of OR clause in separate pass(Bernard Frankpitt)
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* Make oid use oidin/oidout not int4in/int4out in pg_type.h
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* Improve Subplan list handling
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* Allow Subplans to use efficient joins(hash, merge) with upper variable
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@ -291,10 +212,7 @@ MISC
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places, like GROUP BY, UNIQUE, index processing, etc.
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* improve dynamic memory allocation by introducing tuple-context memory
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allocation [memory]
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* -fix memory leak in cache code when non-existant table is referenced
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* In WHERE tab1.x=3 AND tab1.x=tab2.y, add tab2.y=3
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* -pass atttypmod through parser in more cases [atttypmod]
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* -remove duplicate type in/out functions for disk and net
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* Allow persistent backends [persistent]
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* others [performance]
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* prevent labels from being output for stored rules (Tom)
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@ -304,11 +222,8 @@ SOURCE CODE
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-----------
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* Add use of 'const' for variables in source tree
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* Fix C optimizer problem where fmgr_ptr calls return different types [alpha]
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* -Add needed includes and removed unneeded include files(Bruce)
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* -Make configure --enable-debug add -g on compile line(Peter E)
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* Does Mariposa source contain any other bug fixes?
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* Remove SET KSQO option if OR processing is improved(Tom)
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* -Pre-generate lex and yacc output so not required for install(Peter E)
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* Use macros to define NT open() file parameters, remove NT-specific defines
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* Change CURRENT to OLD internally for rules
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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 1.43 2000/04/18 14:55:27 momjian Exp $
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$Header: /cvsroot/pgsql/doc/src/sgml/release.sgml,v 1.44 2000/04/18 21:18:43 momjian Exp $
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-->
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<chapter id="release">
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|
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@ -130,7 +130,7 @@ Improve communication of user table modifications to other running backends (Tom
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Fix handling of temp tables in complex situations (Bruce, Tom)
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Allow table locking when tables opened, improving concurrent reliability (Tom)
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Properly quote sequence names in pg_dump (Ross J. Reedstrom)
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Prevent DESTROY DATABASE while others accessing
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Prevent DROP DATABASE while others accessing
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Prevent any rows from being returned by GROUP BY if no rows processed (Tom)
|
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Fix SELECT COUNT(1) FROM table WHERE ...' if no rows matching WHERE (Tom)
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Fix pg_upgrade so it works for MVCC(Tom)
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|
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@ -174,6 +174,20 @@ Fixes to CHAR
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Fix log() on numeric type (Tom)
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Deprecate ':' and ';' operators
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Allow vacuum of temporary tables
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Disallow inherited columns with the same name as new columns
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Recover or force failure when disk space is exhausted(Hiroshi)
|
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Fix INSERT INTO ... SELECT with AS columns matching result columns
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Fix INSERT ... SELECT ... GROUP BY groups by target columns not source columns(Tom)
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Fix CREATE TABLE test (a char(5) DEFAULT text '', b int4) with INSERT(Tom)
|
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Fix UNION with LIMIT
|
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Fix CREATE TABLE x AS SELECT 1 UNION SELECT 2
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Fix CREATE TABLE test(col char(2) DEFAULT user)
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Fix mismatched types in CREATE TABLE ... DEFAULT
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Fix SELECT * FROM pg_class where oid in (0,-1)
|
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Fix SELECT COUNT('asdf') FROM pg_class WHERE oid=12
|
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Prevent user who can create databases can modifying pg_database table(Peter E)
|
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Fix btree to give a useful elog when key > 1/2 (page - overhead)(Tom)
|
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Fix INSERT of 0.0 into DECIMAL(4,4) field(Tom)
|
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|
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Enhancements
|
||||
------------
|
||||
|
|
@ -267,7 +281,7 @@ Enable backward sequential scan even after reaching EOF (Hiroshi)
|
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Add btree indexing of boolean values, >= and <= (Don Baccus)
|
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Print current line number when COPY FROM fails (Massimo)
|
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Recognize special case of POSIX time zone: "GMT+8" and "GMT-8" (Thomas)
|
||||
Add DEC as synonym for "DECIMAL (Thomas)
|
||||
Add DEC as synonym for "DECIMAL" (Thomas)
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Add SESSION_USER as SQL92 keyword, same as CURRENT_USER (Thomas)
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Implement column aliases (aka correlation names) and join syntax (Thomas)
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Allow queries like SELECT a FROM t1 tx (a) (Thomas)
|
||||
|
|
@ -295,6 +309,10 @@ Update pgaccess to 0.98.5
|
|||
New SET SEED command
|
||||
New pg_options.sample file
|
||||
New SET FSYNC command (Massimo)
|
||||
Allow pg_descriptions when creating tables
|
||||
Allow pg_descriptions when creating types, columns, and functions
|
||||
Allow psql \copy to allow delimiters(Peter E)
|
||||
Allow psql to print nulls as distinct from "" [null](Peter E)
|
||||
|
||||
Types
|
||||
-----
|
||||
|
|
@ -338,6 +356,8 @@ Allow X=-Y operators (Tom)
|
|||
Add exp() and ln() as NUMERIC types
|
||||
Allow SELECT float8(COUNT(*)) / (SELECT COUNT(*) FROM int4_tbl) FROM int4_tbl
|
||||
GROUP BY f1; (Tom)
|
||||
Allow LOCALE to use indexes in regular expression searches(Tom)
|
||||
Allow creation of functional indexes to use default types
|
||||
|
||||
Performance
|
||||
-----------
|
||||
|
|
@ -379,6 +399,9 @@ Reduce optimizer internal housekeeping of join paths for speedup (Tom)
|
|||
Major subquery speedup (Tom)
|
||||
Fewer fsync writes when fsync is not disabled(Tom)
|
||||
Improved LIKE optimizer estimates(Tom)
|
||||
Prevent fsync in SELECT-only queries(Vadim)
|
||||
Make index creation use psort code, because it is now faster(Tom)
|
||||
Allow creation of sort temp tables > 1 Gig
|
||||
|
||||
Source Tree Changes
|
||||
-------------------
|
||||
|
|
|
|||
Loading…
Reference in New Issue