Remove completed items:
< Last updated: Sat Sep 25 21:33:44 EDT 2004 > Last updated: Mon Sep 27 10:15:31 EDT 2004 13,19d12 < Remove items before beta? < < Urgent < ====== < < * -Point-in-time data recovery using backup and write-ahead log < * -Create native Win32 port 25d17 < * -Incremental backups 28d19 < * -Allow configuration files to be specified in a different directory 32,34d22 < * -Add the concept of dataspaces/tablespaces (Gavin) < * -Allow logging of only data definition(DDL), or DDL and modification statements < * -Allow log lines to include session-level information, like database and user 54d41 < * -Allow external interfaces to extend the GUC variable set 126d112 < * -Change factorial to return a numeric (Gavin) 141,142d126 < * -Allow pg_dump to dump sequences using NO_MAXVALUE and NO_MINVALUE < * -Prevent whole-row references from leaking memory, e.g. SELECT COUNT(tab.*) 147d130 < * -Make LENGTH() of CHAR() not count trailing spaces 150d132 < * -Support composite types as table columns 198,200d179 < * -Prevent mismatch of frontend/backend encodings from converting bytea < data from being interpreted as encoded strings < * -Fix upper()/lower() to work for multibyte encodings 217d195 < * -Order duplicate index entries on creation by ctid for faster heap lookups 242d219 < * -Be smarter about insertion of already-ordered data into btree index 265,266d241 < * -Allow SELECT * FROM tab WHERE int2col = 4 to use int2col index, int8, < float4, numeric/decimal too 282d256 < * -Allow command blocks to ignore certain types of errors 302,303d275 < * -Allow savepoints / nested transactions (Alvaro) < * -Use nested transactions to prevent syntax errors from aborting a transaction 306,307d277 < * -Prevent COMMENT ON DATABASE from using a database name < * -Add NO WAIT LOCKs 325,326d294 < * -COMMENT ON [ CAST | CONVERSION | OPERATOR CLASS | LARGE OBJECT | LANGUAGE ] < (Christopher) 334d301 < * -Allow more ISOLATION LEVELS to be accepted 347d313 < * -Add GUC setting to make created tables default to WITHOUT OIDS 365,369d330 < o -ALTER TABLE ADD COLUMN does not honor DEFAULT and non-CHECK CONSTRAINT < o -ALTER TABLE ADD COLUMN column DEFAULT should fill existing < rows with DEFAULT value < o -ALTER TABLE ADD COLUMN column SERIAL doesn't create sequence because < of the item above 371,373d331 < o -Allow ALTER TABLE to modify column lengths and change to binary < compatible types < o -Add ALTER DATABASE ... OWNER TO newowner 390,393d347 < o -Add ALTER DOMAIN, AGGREGATE, CONVERSION ... OWNER TO < o -Add ALTER SEQUENCE ... OWNER TO < o -Add ALTER INDEX that works just like ALTER TABLE already does < on an index 404d357 < o -Add ALTER TABLE table SET WITHOUT CLUSTER (Christopher) 411d363 < o -Allow dump/load of CSV format 464d415 < o -Allow Java server-side programming 473d423 < o -Allow PL/pgSQL parameters to be specified by name and type during definition 493,495d442 < * -Allow psql \du to show users, and add \dg for groups < * -Have psql \dn show only visible temp schemas using current_schemas() < * -Have psql '\i ~/<tab><tab>' actually load files it displays from home dir 509,511d455 < o -Allow pg_dump to dump CREATE CONVERSION (Christopher) < o -Make pg_restore continue after errors, so it acts more like pg_dump < scripts 545d488 < o -Implement SET DESCRIPTOR 592,596d534 < * -Have AFTER triggers execute after the appropriate SQL statement in a < function, not at the end of the function < * -Print table names with constraint names in error messages, or make constraint < names unique within a schema < * -Issue NOTICE if foreign key data requires costly test to match primary key 614,615d551 < * -Use dependency information to dump data in proper order < * -Have pg_dump -c clear the database using dependency information 694,695d629 < * -Provide automatic running of vacuum in the background in backend < rather than in /contrib (Matthew) 828d761 < * -Use background process to write dirty shared buffers to disk 843d775 < * -Change representation of whole-tuple parameters to functions 850,852d781 < * -Add checks for fclose() failure (Tom) < * -Change CVS ID to PostgreSQL < * -Exit postmaster if postgresql.conf can not be opened
This commit is contained in:
Bruce Momjian
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doc/TODO
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doc/TODO
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TODO list for PostgreSQL
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========================
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#A dash (-) marks changes that will appear in the upcoming 8.0 release.#
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#A dash (-) marks changes that will appear in the upcoming 8.1 release.#
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Bracketed items "[]" have more detail.
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Current maintainer: Bruce Momjian (pgman@candle.pha.pa.us)
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Last updated: Sat Sep 25 21:33:44 EDT 2004
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Last updated: Mon Sep 27 10:15:31 EDT 2004
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The most recent version of this document can be viewed at the PostgreSQL web
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site, http://www.PostgreSQL.org.
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Remove items before beta?
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Urgent
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======
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* -Point-in-time data recovery using backup and write-ahead log
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* -Create native Win32 port
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Administration
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==============
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* -Incremental backups
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* Remove behavior of postmaster -o after making postmaster/postgres
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flags unique
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* -Allow configuration files to be specified in a different directory
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* Allow limits on per-db/user connections
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* Add group object ownership, so groups can rename/drop/grant on objects,
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so we can implement roles
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* -Add the concept of dataspaces/tablespaces (Gavin)
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* -Allow logging of only data definition(DDL), or DDL and modification statements
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* -Allow log lines to include session-level information, like database and user
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* Allow server log information to be output as INSERT statements
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This would allow server log information to be easily loaded into
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@ -51,7 +39,6 @@ Administration
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* Allow major upgrades without dump/reload, perhaps using pg_upgrade
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* Have SHOW ALL and pg_settings show descriptions for server-side variables
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* -Allow external interfaces to extend the GUC variable set
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* Allow GRANT/REVOKE permissions to be given to all schema objects with one
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command
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* Remove unreferenced table files created by transactions that were
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@ -123,7 +110,6 @@ Data Types
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==========
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* Remove Money type, add money formatting for decimal type
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* -Change factorial to return a numeric (Gavin)
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* Change NUMERIC to enforce the maximum precision, and increase it
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* Add function to return compressed length of TOAST data values
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* Allow INET subnet tests with non-constants to be indexed
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@ -138,16 +124,12 @@ Data Types
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seqname.nextval (?)
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* Disallow changing default expression of a SERIAL column (?)
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* Allow infinite dates just like infinite timestamps
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* -Allow pg_dump to dump sequences using NO_MAXVALUE and NO_MINVALUE
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* -Prevent whole-row references from leaking memory, e.g. SELECT COUNT(tab.*)
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* Have initdb set DateStyle based on locale?
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* Add pg_get_acldef(), pg_get_typedefault(), and pg_get_attrdef()
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* Allow to_char to print localized month names
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* Allow functions to have a search path specified at creation time
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* -Make LENGTH() of CHAR() not count trailing spaces
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* Allow substring/replace() to get/set bit values
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* Add GUC variable to allow output of interval values in ISO8601 format
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* -Support composite types as table columns
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* Fix data types where equality comparison isn't intuitive, e.g. box
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* Merge hardwired timezone names with the TZ database; allow either kind
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everywhere a TZ name is currently taken
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@ -195,9 +177,6 @@ Multi-Language Support
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* Improve Unicode combined character handling (?)
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* Add octet_length_server() and octet_length_client()
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* Make octet_length_client() the same as octet_length()?
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* -Prevent mismatch of frontend/backend encodings from converting bytea
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data from being interpreted as encoded strings
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* -Fix upper()/lower() to work for multibyte encodings
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Views / Rules
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@ -214,7 +193,6 @@ Views / Rules
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Indexes
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=======
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* -Order duplicate index entries on creation by ctid for faster heap lookups
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* Allow inherited tables to inherit index, UNIQUE constraint, and primary
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key, foreign key [inheritance]
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* UNIQUE INDEX on base column not honored on inserts/updates from
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@ -239,7 +217,6 @@ Indexes
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col3 = 9, spin though the index checking for col1 and col3 matches,
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rather than just col1
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* -Be smarter about insertion of already-ordered data into btree index
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* Prevent index uniqueness checks when UPDATE does not modify the column
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Uniqueness (index) checks are done when updating a column even if the
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@ -262,8 +239,6 @@ Indexes
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One solution is to create a partial index on an IS NULL expression.
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* -Allow SELECT * FROM tab WHERE int2col = 4 to use int2col index, int8,
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float4, numeric/decimal too
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* Add concurrency to GIST
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* Pack hash index buckets onto disk pages more efficiently
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@ -279,7 +254,6 @@ Commands
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* Change LIMIT/OFFSET to use int8
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* CREATE TABLE AS can not determine column lengths from expressions [atttypmod]
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* Allow UPDATE to handle complex aggregates [update] (?)
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* -Allow command blocks to ignore certain types of errors
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* Allow backslash handling in quoted strings to be disabled for portability
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The use of C-style backslashes (.e.g. \n, \r) in quoted strings is not
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@ -299,12 +273,8 @@ Commands
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* Allow REINDEX to rebuild all database indexes, remove /contrib/reindex
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* Add ROLLUP, CUBE, GROUPING SETS options to GROUP BY
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* Add a schema option to createlang
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* -Allow savepoints / nested transactions (Alvaro)
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* -Use nested transactions to prevent syntax errors from aborting a transaction
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* Allow UPDATE tab SET ROW (col, ...) = (...) for updating multiple columns
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* Allow SET CONSTRAINTS to be qualified by schema/table name
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* -Prevent COMMENT ON DATABASE from using a database name
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* -Add NO WAIT LOCKs
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* Allow TRUNCATE ... CASCADE/RESTRICT
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* Allow PREPARE of cursors
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* Allow PREPARE to automatically determine parameter types based on the SQL
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@ -322,8 +292,6 @@ Commands
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Currently LISTEN/NOTIFY information is stored in pg_listener. Storing
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such information in memory would improve performance.
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* -COMMENT ON [ CAST | CONVERSION | OPERATOR CLASS | LARGE OBJECT | LANGUAGE ]
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(Christopher)
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* Dump large object comments in custom dump format
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* Add optional textual message to NOTIFY
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@ -331,7 +299,6 @@ Commands
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message, perhaps indicating the row modified or other custom
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information.
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* -Allow more ISOLATION LEVELS to be accepted
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* Allow CREATE TABLE foo (f1 INT CHECK (f1 > 0) CHECK (f1 < 10)) to work
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by searching for non-conflicting constraint names, and prefix with
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table name?
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@ -344,7 +311,6 @@ Commands
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* Add C code to copy directories for use in creating new databases
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* Ignore temporary tables from other sessions when processing
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inheritance?
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* -Add GUC setting to make created tables default to WITHOUT OIDS
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* Have pg_ctl look at PGHOST in case it is a socket directory?
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* Allow column-level GRANT/REVOKE privileges
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* Add a session mode to warn about non-standard SQL usage in queries
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@ -362,15 +328,7 @@ Commands
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* ALTER
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o -ALTER TABLE ADD COLUMN does not honor DEFAULT and non-CHECK CONSTRAINT
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o -ALTER TABLE ADD COLUMN column DEFAULT should fill existing
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rows with DEFAULT value
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o -ALTER TABLE ADD COLUMN column SERIAL doesn't create sequence because
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of the item above
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o Have ALTER TABLE RENAME rename SERIAL sequence names
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o -Allow ALTER TABLE to modify column lengths and change to binary
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compatible types
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o -Add ALTER DATABASE ... OWNER TO newowner
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o Add ALTER DOMAIN TYPE
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o Allow ALTER TABLE ... ALTER CONSTRAINT ... RENAME
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o Allow ALTER TABLE to change constraint deferrability and actions
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@ -387,10 +345,6 @@ Commands
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Currently non-global system tables must be in the default database
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schema. Global system tables can never be moved.
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o -Add ALTER DOMAIN, AGGREGATE, CONVERSION ... OWNER TO
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o -Add ALTER SEQUENCE ... OWNER TO
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o -Add ALTER INDEX that works just like ALTER TABLE already does
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on an index
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* CLUSTER
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o Automatically maintain clustering on a table
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@ -401,14 +355,12 @@ Commands
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be to create a merged heap/index data file so an index lookup would
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automatically access the heap data too.
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o -Add ALTER TABLE table SET WITHOUT CLUSTER (Christopher)
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o Add default clustering to system tables
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To do this, determine the ideal cluster index for each system
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table and set the cluster setting during initdb.
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* COPY
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o -Allow dump/load of CSV format
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o Allow COPY to report error lines and continue
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This requires the use of a savepoint before each COPY line is
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@ -461,7 +413,6 @@ Commands
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Currently only constants are supported.
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o Change PL/PgSQL to use palloc() instead of malloc()
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o -Allow Java server-side programming
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o Handle references to temporary tables that are created, destroyed,
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then recreated during a session, and EXECUTE is not used
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@ -470,7 +421,6 @@ Commands
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o Fix PL/pgSQL RENAME to work on variables other than OLD/NEW
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o Improve PL/PgSQL exception handling using savepoints
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o -Allow PL/pgSQL parameters to be specified by name and type during definition
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o Allow function parameters to be passed by name,
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get_employee_salary(emp_id => 12345, tax_year => 2001)
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o Add Oracle-style packages
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@ -490,9 +440,6 @@ Clients
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can be used on that data using /contrib/xml2. It also supports XSLT
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transformations.
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* -Allow psql \du to show users, and add \dg for groups
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* -Have psql \dn show only visible temp schemas using current_schemas()
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* -Have psql '\i ~/<tab><tab>' actually load files it displays from home dir
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* Add a libpq function to support Parse/DescribeStatement capability
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* Prevent libpq's PQfnumber() from lowercasing the column name (?)
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* Have psql show current values for a sequence
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@ -506,9 +453,6 @@ Clients
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* pg_dump
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o Have pg_dump use multi-statement transactions for INSERT dumps
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o -Allow pg_dump to dump CREATE CONVERSION (Christopher)
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o -Make pg_restore continue after errors, so it acts more like pg_dump
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scripts
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o Allow pg_dump to use multiple -t and -n switches
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This should be done by allowing a '-t schema.table' syntax.
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@ -542,7 +486,6 @@ Clients
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Document differences between ecpg and the SQL standard and
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information about the Informix-compatibility module.
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o -Implement SET DESCRIPTOR
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o Solve cardinality > 1 for input descriptors / variables (?)
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o Improve error handling (?)
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o Add a semantic check level, e.g. check if a table really exists
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@ -589,11 +532,6 @@ Referential Integrity
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* Allow statement-level triggers to access modified rows
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* Support triggers on columns
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* -Have AFTER triggers execute after the appropriate SQL statement in a
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function, not at the end of the function
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* -Print table names with constraint names in error messages, or make constraint
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names unique within a schema
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* -Issue NOTICE if foreign key data requires costly test to match primary key
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* Remove CREATE CONSTRAINT TRIGGER
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This was used in older releases to dump referential integrity
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@ -611,8 +549,6 @@ Dependency Checking
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===================
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* Flush cached query plans when the dependent objects change
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* -Use dependency information to dump data in proper order
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* -Have pg_dump -c clear the database using dependency information
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* Track dependencies in function bodies and recompile/invalidate
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@ -691,8 +627,6 @@ Vacuum
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write lock. However, the read lock promotion to write lock could lead
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to deadlock situations.
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* -Provide automatic running of vacuum in the background in backend
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rather than in /contrib (Matthew)
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* Allow free space map to be auto-sized or warn when it is too small
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The free space map is in shared memory so resizing is difficult.
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@ -825,7 +759,6 @@ Miscellaneous
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overhead.
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* Add a script to ask system configuration questions and tune postgresql.conf
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* -Use background process to write dirty shared buffers to disk
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* Use a phantom command counter for nested subtransactions to reduce
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tuple overhead
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@ -840,16 +773,12 @@ Source Code
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* Move platform-specific ps status display info from ps_status.c to ports
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* Improve access-permissions check on data directory in Cygwin (Tom)
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* Add optional CRC checksum to heap and index pages
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* -Change representation of whole-tuple parameters to functions
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* Clarify use of 'application' and 'command' tags in SGML docs
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* Better document ability to build only certain interfaces (Marc)
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* Remove or relicense modules that are not under the BSD license, if possible
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* Remove memory/file descriptor freeing before ereport(ERROR)
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* Acquire lock on a relation before building a relcache entry for it
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* Research interaction of setitimer() and sleep() used by statement_timeout
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* -Add checks for fclose() failure (Tom)
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* -Change CVS ID to PostgreSQL
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* -Exit postmaster if postgresql.conf can not be opened
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* Rename /scripts directory because they are all C programs now
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* Promote debug_query_string into a server-side function current_query()
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* Allow the identifier length to be increased via a configure option
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