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Remove completed 8.3 TODO items:
< o -Allow commenting of variables in postgresql.conf to restore them < to defaults < o -Add a GUC variable to control the tablespace for temporary objects < and sort files < Monitoring < ========== < < * -Allow server log information to be output as CSV format < * -Add ability to monitor the use of temporary sort files < * -Allow user-defined types to accept 'typmod' parameters < < http://archives.postgresql.org/pgsql-hackers/2005-08/msg01142.php < http://archives.postgresql.org/pgsql-hackers/2005-09/msg00012.php < http://archives.postgresql.org/pgsql-hackers/2006-08/msg00149.php < < * -Add Globally/Universally Unique Identifier (GUID/UUID) < < http://archives.postgresql.org/pgsql-patches/2006-09/msg00209.php < http://archives.postgresql.org/pgsql-general/2007-01/msg00853.php < < * -Support a data type with specific enumerated values (ENUM) < o -Add support for arrays of complex types < o -Make 64-bit version of the MONEY data type < * -Add ISO day of week format 'ID' to to_char() where Monday = 1 < * -Add a field 'isoyear' to extract(), based on the ISO week < * -Add RESET SESSION command to reset all session state < o -Make CLUSTER preserve recently-dead tuples per MVCC requirements < o -Add more logical syntax CLUSTER table USING index; < support current syntax for backward compatibility < o -Allow UPDATE/DELETE WHERE CURRENT OF cursor < o -Add support for MOVE cursors < o -Allow PL/PythonU to return boolean rather than 1/0 < o -Allow psql \pset boolean variables to set to fixed values, rather < than toggle < o -Add -f to pg_dumpall < Dependency Checking < =================== < < * -Flush cached query plans when the dependent objects change or < when new ANALYZE statistics are available < * -Track dependencies in function bodies and recompile/invalidate < * -Invalidate prepared queries, like INSERT, when the table definition < is altered < < * -Allow use of indexes to search for NULLs < * -Allow the creation of indexes with mixed ascending/descending < specifiers < * -Reduce checkpoint performance degredation by forcing data to disk < more evenly < * -Allow sequential scans to take advantage of other concurrent < sequential scans, also called "Synchronised Scanning" < * -Consider shrinking expired tuples to just their headers < * -Allow heap reuse of UPDATEd rows if no indexed columns are changed, < and old and new versions are on the same heap page < * -Reduce XID consumption of read-only queries < o -Turn on by default < o -Allow multiple vacuums so large tables do not starve small < tables < * -Allow the pg_xlog directory location to be specified during initdb < with a symlink back to the /data location < * -Allow buffered WAL writes and fsync < * -Allow ORDER BY ... LIMIT # to select high/low value without sort or < index using a sequential scan for highest/lowest values < * -Merge xmin/xmax/cmin/cmax back into three header fields < o -Support a smaller header for short variable-length fields < * -Move NAMEDATALEN from postgres_ext.h to pg_config_manual.h < * -Fix problem with excessive logging during SSL disconnection < < http://archives.postgresql.org/pgsql-bugs/2006-12/msg00122.php < http://archives.postgresql.org/pgsql-bugs/2007-05/msg00065.php < < o -Add long file support for binary pg_dump output
This commit is contained in:
Bruce Momjian
74
doc/TODO
74
doc/TODO
@ -1,7 +1,7 @@
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PostgreSQL TODO List
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====================
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Current maintainer: Bruce Momjian (bruce@momjian.us)
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Last updated: Mon Nov 26 18:31:05 EST 2007
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Last updated: Fri Dec 7 12:52:05 EST 2007
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The most recent version of this document can be viewed at
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http://www.postgresql.org/docs/faqs.TODO.html.
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@ -100,8 +100,6 @@ Administration
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* Configuration files
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o -Allow commenting of variables in postgresql.conf to restore them
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to defaults
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o Allow pg_hba.conf to specify host names along with IP addresses
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Host name lookup could occur when the postmaster reads the
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@ -142,8 +140,6 @@ Administration
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requires a tool that will call that function and connect to each
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database to find the objects in each database for that tablespace.
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o -Add a GUC variable to control the tablespace for temporary objects
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and sort files
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o Allow WAL replay of CREATE TABLESPACE to work when the directory
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structure on the recovery computer is different from the original
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@ -168,11 +164,6 @@ Administration
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http://archives.postgresql.org/pgsql-hackers/2006-12/msg00497.php
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Monitoring
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==========
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* -Allow server log information to be output as CSV format
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* -Add ability to monitor the use of temporary sort files
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Data Types
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@ -187,12 +178,6 @@ Data Types
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* Fix data types where equality comparison isn't intuitive, e.g. box
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* Allow user-defined types to specify a type modifier at table creation
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time
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* -Allow user-defined types to accept 'typmod' parameters
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http://archives.postgresql.org/pgsql-hackers/2005-08/msg01142.php
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http://archives.postgresql.org/pgsql-hackers/2005-09/msg00012.php
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http://archives.postgresql.org/pgsql-hackers/2006-08/msg00149.php
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* Add support for public SYNONYMs
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http://archives.postgresql.org/pgsql-hackers/2006-03/msg00519.php
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@ -202,11 +187,6 @@ Data Types
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http://archives.postgresql.org/pgsql-hackers/2006-05/msg00072.php
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http://archives.postgresql.org/pgsql-hackers/2006-09/msg01681.php
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* -Add Globally/Universally Unique Identifier (GUID/UUID)
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http://archives.postgresql.org/pgsql-patches/2006-09/msg00209.php
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http://archives.postgresql.org/pgsql-general/2007-01/msg00853.php
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* Add support for SQL-standard GENERATED/IDENTITY columns
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http://archives.postgresql.org/pgsql-hackers/2006-07/msg00543.php
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@ -214,7 +194,6 @@ Data Types
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http://archives.postgresql.org/pgsql-hackers/2007-05/msg00344.php
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http://archives.postgresql.org/pgsql-patches/2007-05/msg00076.php
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* -Support a data type with specific enumerated values (ENUM)
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* Improve XML support
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http://developer.postgresql.org/index.php/XML_Support
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@ -308,7 +287,6 @@ Data Types
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http://archives.postgresql.org/pgsql-patches/2007-05/msg00114.php
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o -Add support for arrays of complex types
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o Allow single-byte header storage for array elements
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@ -330,7 +308,6 @@ Data Types
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* MONEY data type
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o -Make 64-bit version of the MONEY data type
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* Add locale-aware MONEY type, and support multiple currencies
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http://archives.postgresql.org/pgsql-general/2005-08/msg01432.php
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@ -369,8 +346,6 @@ Functions
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o to_char(INTERVAL '43 hours 20 minutes', 'WK:DD:HR:MI') => 0:1:19:20
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o to_char(INTERVAL '3 years 5 months','MM') => 41
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* -Add ISO day of week format 'ID' to to_char() where Monday = 1
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* -Add a field 'isoyear' to extract(), based on the ISO week
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* Implement inlining of set-returning functions defined in SQL
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* Allow SQL-language functions to return results from RETURNING queries
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@ -539,7 +514,6 @@ SQL Commands
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* Add NOVICE output level for helpful messages like automatic sequence/index
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creation
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* -Add RESET SESSION command to reset all session state
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* Add GUC to issue notice about statements that use unjoined tables
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* Allow EXPLAIN to identify tables that were skipped because of
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constraint_exclusion
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@ -652,7 +626,6 @@ SQL Commands
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* CLUSTER
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o -Make CLUSTER preserve recently-dead tuples per MVCC requirements
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o Automatically maintain clustering on a table
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This might require some background daemon to maintain clustering
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@ -671,8 +644,6 @@ SQL Commands
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o %Add VERBOSE option to report tables as they are processed,
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like VACUUM VERBOSE
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o -Add more logical syntax CLUSTER table USING index;
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support current syntax for backward compatibility
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* COPY
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@ -709,7 +680,6 @@ SQL Commands
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* CURSOR
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o -Allow UPDATE/DELETE WHERE CURRENT OF cursor
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o Prevent DROP TABLE from dropping a row referenced by its own open
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cursor?
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@ -784,7 +754,6 @@ SQL Commands
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http://archives.postgresql.org/pgsql-patches/2006-06/msg00031.php
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o Add single-step debugging of functions
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o -Add support for MOVE cursors
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o Add support for SCROLL cursors
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o Add support for WITH HOLD cursors
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o Allow RETURN to return row or record functions
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@ -817,7 +786,6 @@ SQL Commands
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http://archives.postgresql.org/pgsql-patches/2006-02/msg00288.php
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o -Allow PL/PythonU to return boolean rather than 1/0
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o Allow data to be passed in native language formats, rather
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than only text
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@ -855,8 +823,6 @@ Clients
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http://archives.postgresql.org/pgsql-hackers/2004-11/msg00014.php
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http://archives.postgresql.org/pgsql-hackers/2004-11/msg00014.php
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o -Allow psql \pset boolean variables to set to fixed values, rather
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than toggle
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o Consistently display privilege information for all objects in psql
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o Add auto-expanded mode so expanded output is used if the row
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length is wider than the screen width.
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@ -901,7 +867,6 @@ Clients
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o Stop dumping CASCADE on DROP TYPE commands in clean mode
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o Allow pg_dump --clean to drop roles that own objects or have
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privileges
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o -Add -f to pg_dumpall
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o Change pg_dump so that a comment on the dumped database is
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applied to the loaded database, even if the database has a
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different name. This will require new backend syntax, perhaps
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@ -999,15 +964,6 @@ Triggers
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Dependency Checking
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===================
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* -Flush cached query plans when the dependent objects change or
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when new ANALYZE statistics are available
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* -Track dependencies in function bodies and recompile/invalidate
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* -Invalidate prepared queries, like INSERT, when the table definition
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is altered
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Indexes
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=======
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@ -1028,15 +984,12 @@ Indexes
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http://archives.postgresql.org/pgsql-patches/2005-07/msg00512.php
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http://archives.postgresql.org/pgsql-hackers/2006-12/msg01107.php
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* -Allow use of indexes to search for NULLs
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* Allow accurate statistics to be collected on indexes with more than
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one column or expression indexes, perhaps using per-index statistics
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http://archives.postgresql.org/pgsql-performance/2006-10/msg00222.php
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http://archives.postgresql.org/pgsql-hackers/2007-03/msg01131.php
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* -Allow the creation of indexes with mixed ascending/descending
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specifiers
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* Consider compressing indexes by storing key values duplicated in
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several rows as a single index entry
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@ -1111,8 +1064,6 @@ Fsync
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* %Add an option to sync() before fsync()'ing checkpoint files
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* Add program to test if fsync has a delay compared to non-fsync
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* -Reduce checkpoint performance degredation by forcing data to disk
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more evenly
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Cache Usage
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@ -1171,8 +1122,6 @@ Cache Usage
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o Query execute plan
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o Query results
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* -Allow sequential scans to take advantage of other concurrent
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sequential scans, also called "Synchronised Scanning"
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* Consider increasing internal areas when shared buffers is increased
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http://archives.postgresql.org/pgsql-hackers/2005-10/msg01419.php
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@ -1227,14 +1176,10 @@ Vacuum
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in hopes that empty pages at the end can be truncated by VACUUM
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* Allow FSM page return free space based on table clustering, to assist
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in maintaining clustering?
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* -Consider shrinking expired tuples to just their headers
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* -Allow heap reuse of UPDATEd rows if no indexed columns are changed,
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and old and new versions are on the same heap page
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* Improve dead row detection during multi-statement transactions usage
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http://archives.postgresql.org/pgsql-patches/2007-03/msg00358.php
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* -Reduce XID consumption of read-only queries
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* Prevent long-lived temporary tables from causing frozen-xid advancement
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starvation
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@ -1249,9 +1194,6 @@ Vacuum
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o %Issue log message to suggest VACUUM FULL if a table is nearly
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empty?
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o Consider logging activity either to the logs or a system view
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o -Turn on by default
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o -Allow multiple vacuums so large tables do not starve small
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tables
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o Improve control of auto-vacuum
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http://archives.postgresql.org/pgsql-hackers/2006-12/msg00876.php
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@ -1344,8 +1286,6 @@ Write-Ahead Log
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http://archives.postgresql.org/pgsql-hackers/2007-03/msg01589.php
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* -Allow the pg_xlog directory location to be specified during initdb
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with a symlink back to the /data location
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* Allow WAL information to recover corrupted pg_controldata
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http://archives.postgresql.org/pgsql-patches/2006-06/msg00025.php
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@ -1357,7 +1297,6 @@ Write-Ahead Log
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rotation to fsync again. One idea is to write the WAL to different
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offsets that might reduce the rotational delay.
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* -Allow buffered WAL writes and fsync
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* Allow WAL logging to be turned off for a table, but the table
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might be dropped or truncated during crash recovery [walcontrol]
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@ -1382,8 +1321,6 @@ Optimizer / Executor
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====================
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* Improve selectivity functions for geometric operators
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* -Allow ORDER BY ... LIMIT # to select high/low value without sort or
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index using a sequential scan for highest/lowest values
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* Precompile SQL functions to avoid overhead
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* Create utility to compute accurate random_page_cost value
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* Improve ability to display optimizer analysis using OPTIMIZER_DEBUG
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@ -1433,10 +1370,8 @@ Miscellaneous Performance
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could hit disk before WAL is written.
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* Add a script to ask system configuration questions and tune postgresql.conf
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* -Merge xmin/xmax/cmin/cmax back into three header fields
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* Consider ways of storing rows more compactly on disk
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o -Support a smaller header for short variable-length fields
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o Reduce the row header size?
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o Consider reducing on-disk varlena length from four bytes to
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two because a heap row cannot be more than 64k in length
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@ -1511,7 +1446,6 @@ Source Code
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http://archives.postgresql.org/pgsql-docs/2006-12/msg00152.php
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* -Move NAMEDATALEN from postgres_ext.h to pg_config_manual.h
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* Consider making NAMEDATALEN more configurable in future releases
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* Update our code to handle 64-bit timezone files to match the zic
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source code, which now uses them
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@ -1519,11 +1453,6 @@ Source Code
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http://archives.postgresql.org/pgsql-patches/2007-05/msg00046.php
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* -Fix problem with excessive logging during SSL disconnection
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http://archives.postgresql.org/pgsql-bugs/2006-12/msg00122.php
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http://archives.postgresql.org/pgsql-bugs/2007-05/msg00065.php
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* Support scoped IPv6 addresses
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http://archives.postgresql.org/pgsql-bugs/2007-05/msg00111.php
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@ -1552,7 +1481,6 @@ Source Code
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http://archives.postgresql.org/pgsql-patches/2005-06/msg00027.php
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o -Add long file support for binary pg_dump output
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* Wire Protocol Changes
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