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| -rw-r--r-- | doc/TODO | 50 |
1 files changed, 18 insertions, 32 deletions
@@ -1,6 +1,6 @@ TODO list for PostgreSQL ======================== -Last updated: Mon Sep 2 02:44:01 EDT 2002 +Last updated: Mon Sep 2 11:30:39 EDT 2002 Current maintainer: Bruce Momjian (pgman@candle.pha.pa.us) @@ -38,7 +38,7 @@ Reporting * -Change DEBUG startup tag to LOG (Bruce) * Show location of syntax error in query [yacc] * -Add getpid() function to backend -* Allow logging of query durations +* -Allow logging of query durations Permissions @@ -48,8 +48,6 @@ Permissions * -Allow user/group names to be specified directly in pg_hba.conf (Bruce) * -Add PGPASSWORDFILE environment variable or ~/.pgpass to store user/host/password combinations -* Make single-user local access permissions the default by limiting - permissions on the socket file (Peter E) * -Allow permissions for functions (Peter E) * -Allow object creation to be disabled for specific users @@ -69,8 +67,8 @@ Administration specified parameters to postgresql.conf defaults (Peter E) * Allow easy display of usernames in a group * Allow configuration files to be specified in a different directory -* Reserve last few process slots for super-user if max_connections reached -* Add GUC parameter to print queries that generate errors +* -Reserve last few process slots for super-user if max_connections reached +* -Add GUC parameter to print queries that generate errors Data Types ========== @@ -79,27 +77,26 @@ Data Types * Add IPv6 capability to INET/CIDR types * Remove Money type, add money formatting for decimal type * -SELECT cash_out(2) crashes because of opaque -* Declare typein/out functions in pg_proc with a special "C string" data type -* Functions returning sets do not totally work +* -Declare typein/out functions in pg_proc with a special "C string" data type +* -Functions returning sets do not totally work * Change factorial to return a numeric * Change NUMERIC data type to use base 10,000 internally * Change NUMERIC to enforce the maximum precision, and increase it * Add function to return compressed length of TOAST data values (Tom) * -Add GUC parameter for DATESTYLE * Allow INET subnet tests using non-constants -* Allow bytea to handle LIKE with non-TEXT patterns +* -Allow bytea to handle LIKE with non-TEXT patterns * CONVERSION - o Store binary-compatible type information in the system + o -Store binary-compatible type information in the system o Allow better handling of numeric constants, type conversion [typeconv] - o -SELECT col FROM tab WHERE numeric_col = 10.1 fails, requires quotes * ARRAYS o Allow nulls in arrays o Allow arrays to be ORDER'ed - o Ensure we have array-eq operators for every built-in array type + o -Ensure we have array-eq operators for every built-in array type o Support construction of array result values in expressions * BINARY DATA @@ -116,7 +113,6 @@ Multi-Language Support * Add NCHAR (as distinguished from ordinary varchar), * Allow LOCALE on a per-column basis, default to ASCII * Support multiple simultaneous character sets, per SQL92 -* Allow setting database character set without multibyte enabled * Improve Unicode combined character handling * Optimize locale to have minimal performance impact when not used (Peter E) * Add octet_length_server() and octet_length_client() (Thomas, Tatsuo) @@ -149,7 +145,6 @@ Indexes INSERT INTO inherit_table (unique_index_col) VALUES (dup) should fail [inheritance] * -Allow UPDATE/DELETE on inherited table -* Have UPDATE/DELETE clean out indexes * Add UNIQUE capability to non-btree indexes * Add btree index support for reltime, tinterval, regproc * Add rtree index support for line, lseg, path, point @@ -195,13 +190,10 @@ Commands * ALTER o ALTER TABLE ADD COLUMN does not honor DEFAULT and non-CHECK CONSTRAINT - o ALTER TABLE ADD COLUMN to inherited table put column in wrong place - [inheritance] o -Add ALTER TABLE DROP COLUMN feature - o Add ALTER FUNCTION o -Add ALTER TABLE DROP non-CHECK CONSTRAINT - o -ALTER TABLE ADD PRIMARY KEY (Tom) - o -ALTER TABLE ADD UNIQUE (Tom) + o -ALTER TABLE ADD PRIMARY KEY (Christopher) + o -ALTER TABLE ADD UNIQUE (Christopher) o -ALTER TABLE ALTER COLUMN SET/DROP NOT NULL (Christopher Kings-Lynne) o ALTER TABLE ADD COLUMN column SERIAL doesn't create sequence o ALTER TABLE ADD COLUMN column DEFAULT should fill existing @@ -245,7 +237,7 @@ Commands o -Add command to display locks o -Add SET or BEGIN timeout parameter to cancel query o Add SET REAL_FORMAT and SET DOUBLE_PRECISION_FORMAT using printf args - o -Remove SET KSQO option now that OR processing is improved (Tom) + o -Remove SET KSQO option now that OR processing is improved (Bruce) o Add SET PERFORMANCE_TIPS option to suggest INDEX, VACUUM, VACUUM ANALYZE, and CLUSTER o Add SHOW command to see locale @@ -277,14 +269,13 @@ Commands Clients ======= -* Have pg_dump use LEFT OUTER JOIN in multi-table SELECTs +* -Have pg_dump use LEFT OUTER JOIN in multi-table SELECTs or multiple SELECTS to avoid bad system catalog entries * -Have pg_dump -C dump database location and encoding information * -Allow psql \d to show foreign keys * -Allow psql \d to show temporary table structure (Tom) * Allow psql to show transaction status if backend protocol changes made * Add XML interface: psql, pg_dump, COPY, separate server (?) -* Add config file check for $ODBCINI, $HOME/.odbc.ini, installpath/etc/odbc.ini * -Have pg_dump use ADD PRIMARY KEY after COPY, for performance (Neil Conway) * JDBC @@ -315,11 +306,6 @@ Clients o Add SQLSTATE o fix handling of DB attributes that are arrays -* ODBC - o ODBC 3.0 support - o Unicode(UCS-2) support - o Updatable cursors support - Referential Integrity ===================== @@ -334,7 +320,7 @@ Referential Integrity * -Add ALTER TRIGGER ... RENAME * Change foreign key constraint for array -> element to mean element in array -* Fix foreign key constraints to not error on intermediate db states (Stephan) +* -Fix foreign key constraints to not error on intermediate db states (Stephan) * Allow DEFERRABLE UNIQUE constraints * Allow triggers to be disabled [trigger] @@ -349,7 +335,7 @@ Dependency Checking * Have SERIAL generate non-colliding sequence names when we have auto-destruction * -Prevent column dropping if column is used by foreign key -* Propagate column or table renaming to foreign key constraints +* -Propagate column or table renaming to foreign key constraints * -Automatically drop constraints/functions when object is dropped * -Make foreign key constraints clearer in dump file * -Make other constraints clearer in dump file @@ -444,7 +430,7 @@ Write-Ahead Log * Turn off after-change writes if fsync is disabled (?) * Add WAL index reliability improvement to non-btree indexes * -Reorder postgresql.conf WAL items in order of importance (Bruce) -* Remove wal_files postgresql.conf option because WAL files are now recycled +* -Remove wal_files postgresql.conf option because WAL files are now recycled * Find proper defaults for postgresql.conf WAL entries * Add checkpoint_min_warning postgresql.conf option to warn about checkpoints that are too frequent @@ -457,10 +443,10 @@ Optimizer / Executor * Improve Subplan list handling * Allow Subplans to use efficient joins(hash, merge) with upper variable -* Improve dynamic memory allocation by introducing tuple-context memory +* -Improve dynamic memory allocation by introducing tuple-context memory allocation (Tom) * Add hash for evaluating GROUP BY aggregates -* Nested FULL OUTER JOINs don't work (Tom) +* -Nested FULL OUTER JOINs don't work (Tom) * Allow merge and hash joins on expressions not just simple variables (Tom) * -Add new pg_proc cachable settings to specify whether function can be evaluated only once or once per query |