TODO list for PostgreSQL
========================
-Last updated: Wed Aug 6 19:36:02 EDT 2003
+Last updated: Thu Aug 7 22:00:19 EDT 2003
Current maintainer: Bruce Momjian (pgman@candle.pha.pa.us)
Reporting
=========
-* Allow elog() to return error codes, module name, file name, line
- number, not just messages (Peter E)
-* Add error codes (Peter E)
-* Make error messages more consistent [error]
+* -Allow elog() to return error codes, module name, file name, line
+ number, not just messages (Tom)
+* -Add error codes (Tom)
+* -Make error messages more consistent
* Show location of syntax error in query [yacc]
-* Add GUC log_statement_and_duration to print statement and >= min duration
+* -Add GUC log_statement_and_duration to print statement and >= min duration
Administration
* Allow better handling of numeric constants, type conversion [typeconv]
* Allow backend to output result sets in XML
* Prevent whole-row references from leaking memory, e.g. SELECT COUNT(tab.*)
-* Allow current datestyle to restrict dates; prevent month/day swapping
+* -Allow current datestyle to restrict dates; prevent month/day swapping
from making invalid dates valid
-* Prevent month/day swapping of ISO dates to make invalid dates valid
+* -Prevent month/day swapping of ISO dates to make invalid dates valid
* Have initdb set DateStyle based on locale?
-* Delay resolution of array expression type so assignment coercion
+* -Delay resolution of array expression type so assignment coercion
can be performed on empty array expressions (Joe)
* ARRAYS
o Allow nulls in arrays
- o Allow arrays to be ORDER'ed
+ o -Allow arrays to be ORDER'ed
o Support construction of array result values in expressions
* BINARY DATA
* Make octet_length_client the same as octet_length() (?)
* Prevent mismatch of frontend/backend encodings from converting bytea
data from being interpreted as encoded strings
-* Remove Cyrillic recode support
+* -Remove Cyrillic recode support
Views / Rules
* Add UNIQUE capability to non-btree indexes
* Add btree index support for reltime, tinterval, regproc
* Add rtree index support for line, lseg, path, point
-* Certain indexes will not shrink, e.g. indexes on ever-increasing
+* -Certain indexes will not shrink, e.g. indexes on ever-increasing
columns and indexes with many duplicate keys
* Use indexes for min() and max() or convert to SELECT col FROM tab ORDER
BY col DESC LIMIT 1 if appropriate index exists and WHERE clause acceptible
* -Allow UPDATE to use SET col = DEFAULT
* -Add config variable to prevent auto-adding missing FROM-clause tables
* Allow SET CONSTRAINTS to be qualified by schema/table
-* Have SELECT '13 minutes'::interval display zero seconds in ISO datestyle
+* -Have SELECT '13 minutes'::interval display zero seconds in ISO datestyle
* Prevent COMMENT ON DATABASE from using a database name
* Add GUC variable to prevent waiting on locks
rows with DEFAULT value
o ALTER TABLE ADD COLUMN column SERIAL doesn't create sequence because
of the item above
- o -Add ALTER TABLE tab SET WITHOUT OIDS (Rod)
+ o --Add ALTER TABLE tab SET WITHOUT OIDS (Rod)
o -Add ALTER SEQUENCE to modify min/max/increment/cache/cycle values
o Have ALTER TABLE rename SERIAL sequences
o Allow columns to be reordered using ALTER ... POSITION i col1 [,col2];
o Allow BINARY option to SELECT, just like DECLARE
o -MOVE 0 should not move to end of cursor (Bruce)
o Allow UPDATE/DELETE WHERE CURRENT OF cursor using per-cursor tid
- stored in the backend
+ stored in the backend (Gavin)
o Prevent DROP of table being referenced by our own open cursor
o -Allow cursors outside transactions
o Add SET PERFORMANCE_TIPS option to suggest INDEX, VACUUM, VACUUM
ANALYZE, and CLUSTER
o Add SET SCHEMA
- o Allow EXPLAIN EXECUTE to see prepared plans
+ o -Allow EXPLAIN EXECUTE to see prepared plans
o Allow SHOW of non-modifiable variables, like pg_controldata
* SERVER-SIDE LANGUAGES
o Allow PL/PgSQL's RAISE function to take expressions
o Change PL/PgSQL to use palloc() instead of malloc()
- o Add untrusted version of plpython
o Allow Java server-side programming, http://pljava.sourceforge.net
[java]
o Fix problems with complex temporary table creation/destruction
Clients
=======
-* Allow psql to show transaction status if backend protocol changes made
+* -Allow psql to show transaction status if backend protocol changes made
* -Add schema, cast, and conversion backslash commands to psql (Christopher)
* -Allow pg_dump to dump a specific schema (Neil Conway)
* Allow psql to do table completion for SELECT * FROM schema_part and
table completion for SELECT * FROM schema_name.
* Add XML capability to pg_dump and COPY, when backend XML capability
* -Allow SSL-enabled clients to turn off SSL transfers
-* Modify pg_get_triggerdef() to take a boolean to pretty-print,
- and use that as part of pg_dump along with psql
+* -Modify pg_get_triggerdef() to take a boolean to pretty-print,
+ and use that as part of pg_dump along with psql
o Solve cardinality > 1 for input descriptors / variables
o Improve error handling
o Add a semantic check level, e.g. check if a table really exists
- o Add SQLSTATE
+ o -Add SQLSTATE
o fix handling of DB attributes that are arrays
o Use backend prepare/execute facility for ecpg where possible
o -Make casts work in variable initializations
- o Implement SQLDA (do we really need this?)
+ o -Implement SQLDA
o Fix nested C comments
o sqlwarn[6] should be 'W' if the PRECISION or SCALE value specified
o -Allow multi-threaded use of SQLCA
=====
* Shared catalog cache, reduce lseek()'s by caching table size in shared area
* Add free-behind capability for large sequential scans (Bruce)
-* Allow binding query args over FE/BE protocol
* Consider use of open/fcntl(O_DIRECT) to minimize OS caching
* Make blind writes go through the file descriptor cache
* Cache last known per-tuple offsets to speed long tuple access
* Improve speed with indexes (perhaps recreate index instead) [vacuum]
* Reduce lock time by moving tuples with read lock, then write
lock and truncate table [vacuum]
-* Provide automatic running of vacuum in the background (Tom) [vacuum]
+* Provide automatic running of vacuum in the background in backend
+ rather than in /contrib [vacuum]
* Allow free space map to be auto-sized or warn when it is too small
====================
* Improve Subplan list handling
-* Allow Subplans to use efficient joins(hash, merge) with upper variable
+* -Allow Subplans to use efficient joins(hash, merge) with upper variable
* -Add hash for evaluating GROUP BY aggregates (Tom)
-* Allow merge and hash joins on expressions not just simple variables (Tom)
+* -Allow merge and hash joins on expressions not just simple variables (Tom)
* -Make IN/NOT IN have similar performance to EXISTS/NOT EXISTS (Tom)
* Missing optimizer selectivities for date, r-tree, etc. [optimizer]
* Allow ORDER BY ... LIMIT to select top values without sort or index
* Clarify use of 'application' and 'command' tags in SGML docs
* Better document ability to build only certain interfaces (Marc)
* Remove or relicense modules that are not under the BSD license, if possible
-* Remove memory/file descriptor freeing befor elog(ERROR) (Bruce)
+* Remove memory/file descriptor freeing before ereport(ERROR) (Bruce)
* Acquire lock on a relation before building a relcache entry for it
* Research interaction of setitimer() and sleep() used by statement_timeout
* Add checks for fclose() failure
-* Change CVS $Id: TODO,v 1.1106 2003/08/06 23:36:02 momjian Exp $ to $PostgreSQL: pgsql/doc/TODO,v 1.1106 2003/08/06 23:36:02 momjian Exp $
+* Change CVS $Id: TODO,v 1.1107 2003/08/08 02:00:20 momjian Exp $ to $PostgreSQL: pgsql/doc/TODO,v 1.1107 2003/08/08 02:00:20 momjian Exp $
* Exit postmaster if postgresql.conf can not be opened
* Rename /scripts directory because they are all C programs now
* Allow the regression tests to start postmaster with -i so the tests
* Wire Protocol Changes
- o Show transaction status in psql
- o Allow binding of query parameters, support for prepared queries
+ o -Show transaction status in psql
+ o -Allow binding of query parameters, support for prepared queries
o Add optional textual message to NOTIFY
- o Remove hard-coded limits on user/db/password names
- o Remove unused elements of startup packet (unused, tty, passlength)
- o Fix COPY/fastpath protocol?
+ o -Remove hard-coded limits on user/db/password names
+ o -Remove unused elements of startup packet (unused, tty, passlength)
+ o -Fix COPY/fastpath protocol
o Allow fastpast to pass values in portable format
- o Replication support?
- o Error codes
+ o -Error codes
o Dynamic character set handling
o Special passing of binary values in platform-neutral format (bytea?)
- o ecpg improvements?
o Add decoded type, length, precision
o Compression?
- o Report server version number, database encoding, client encoding
+ o -Report server version number, database encoding, client encoding
o Update clients to use data types, typmod, schema.table.column names of
result sets using new query protocol
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