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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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Bruce Momjian
26 years ago