Remove items completed in 7.4:
< * -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 40d35 < * -Add GUC log_statement_and_duration to print statement and >= min duration 51d45 < * -Allow easy display of usernames in a group 53d46 < * -Add start time to pg_stat_activity 55d47 < * -Have standalone backend read postgresql.conf (Tom) 59d50 < * -Allow CIDR format to be used in pg_hba.conf 74d64 < * -Add IPv6 capability to INET/CIDR types 77d66 < * -Change NUMERIC data type to use base 10,000 internally 82d70 < * -Add GUC variables to control floating number output digits (Pedro Ferreira) 90,92d77 < * -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 102d86 < o -Allow arrays to be ORDER'ed 104d87 < o -Support construction of array result values in expressions (Joe) 128d110 < * -Remove Cyrillic recode support 146,147d127 < * -Allow CREATE INDEX zman_index ON test (date_trunc( 'day', zman ) datetime_ops) < fails index can't store constant parameters 155d134 < * -Add btree index support for reltime, tinterval, regproc (Tom) 157d135 < * -Certain indexes will not shrink, e.g. indexes on ever-increasing 161d138 < * -Allow LIKE indexing optimization for non-ASCII locales using special index 173d149 < * -Improve concurrency of hash indexes (Tom) 181d156 < * -Allow LIMIT/OFFSET to use expressions (Tom) 187d161 < * -Return proper effected tuple count from complex commands [return] 191d164 < * -Make a transaction-safe TRUNCATE (Rod) 196,197d168 < * -Allow UPDATE to use SET col = DEFAULT < * -Add config variable to prevent auto-adding missing FROM-clause tables 199d169 < * -Have SELECT '13 minutes'::interval display zero seconds in ISO datestyle 224,225d193 < o -Add ALTER TABLE tab SET WITHOUT OIDS (Rod) < o -Add ALTER SEQUENCE to modify min/max/increment/cache/cycle values 237d204 < o -Allow CLUSTER to cluster all tables (Alvaro Herrera) 248d214 < o -MOVE 0 should not move to end of cursor (Bruce) 252d217 < o -Allow cursors outside transactions 264,265d228 < o -Allow EXPLAIN EXECUTE to see prepared plans < o -Allow SHOW of some non-modifiable variables, like pg_controldata 280d242 < o -Allow array declarations and other data types in PL/PgSQL DECLARE 282,283d243 < o -Make PL/PgSQL %TYPE schema-aware < o -Allow PL/PgSQL to support array element assignment (Joe) 294,298d253 < * -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. 300,302d254 < * -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 327d278 < o -Add SQLSTATE 330d280 < o -Make casts work in variable initializations 334,336d283 < o -Allow multi-threaded use of SQLCA < o -Understand structure definitions outside a declare section < o -Allow :var[:index] or :var[<integer>] as cvariable for an array var 356d302 < * -Support statement-level triggers (Neil) 460,461d405 < * -Add checkpoint_min_warning postgresql.conf option to warn about checkpoints < that are too frequent (Bruce) 472,476d415 < * -Improve Subplan list handling < * -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) < * -Make IN/NOT IN have similar performance to EXISTS/NOT EXISTS (Tom) 480d418 < * -Inline simple SQL functions to avoid overhead (Tom) 495d432 < * -Get faster regex() code from Henry Spencer <henry@zoo.utoronto.ca> 511,512d447 < * -Modify regression tests to prevent failures do to minor numeric rounding < * -Add OpenBSD's getpeereid() call for local socket authentication 537,542d471 < o -Show transaction status in psql < o -Allow binding of query parameters, support for prepared queries < 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 -Error codes 544d472 < o -Special passing of binary values in platform-neutral format (bytea?) 547d474 < o -Report server version number, database encoding, client encoding
This commit is contained in:
Bruce Momjian
parent
022da0ed7a
commit
0b0f9c62e8
77
doc/TODO
77
doc/TODO
@ -1,6 +1,6 @@
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TODO list for PostgreSQL
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========================
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Last updated: Sun Nov 16 21:05:26 EST 2003
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Last updated: Wed Nov 19 12:33:55 EST 2003
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Current maintainer: Bruce Momjian (pgman@candle.pha.pa.us)
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@ -32,12 +32,7 @@ Urgent
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Reporting
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=========
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* -Allow elog() to return error codes, module name, file name, line
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number, not just messages (Tom)
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* -Add error codes (Tom)
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* -Make error messages more consistent
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* Show location of syntax error in query [yacc]
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* -Add GUC log_statement_and_duration to print statement and >= min duration
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Administration
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@ -48,15 +43,11 @@ Administration
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or postmaster startup (Bruce)
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* Remove behavior of postmaster -o after making postmaster/postgres
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flags unique
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* -Allow easy display of usernames in a group
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* Allow configuration files to be specified in a different directory
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* -Add start time to pg_stat_activity
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* Allow limits on per-db/user connections
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* -Have standalone backend read postgresql.conf (Tom)
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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 [tablespaces]
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* -Allow CIDR format to be used in pg_hba.conf
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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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@ -71,15 +62,12 @@ Administration
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Data Types
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==========
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* -Add IPv6 capability to INET/CIDR types
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* Remove Money type, add money formatting for decimal type
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* Change factorial to return a numeric
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* -Change NUMERIC data type to use base 10,000 internally
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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 (Tom)
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* Allow INET subnet tests using non-constants to be indexed
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* Add transaction_timestamp(), statement_timestamp(), clock_timestamp() functionality
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* -Add GUC variables to control floating number output digits (Pedro Ferreira)
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* Have sequence dependency track use of DEFAULT sequences, 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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@ -87,9 +75,6 @@ Data Types
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* Allow better handling of numeric constants, type conversion [typeconv]
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* Allow backend to output result sets in XML
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* Prevent whole-row references from leaking memory, e.g. SELECT COUNT(tab.*)
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* -Allow current datestyle to restrict dates; prevent month/day swapping
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from making invalid dates valid
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* -Prevent month/day swapping of ISO dates to make invalid dates valid
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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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* Add ALTER DOMAIN, AGGREGATE, CONVERSION, SEQUENCE ... OWNER TO
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@ -99,9 +84,7 @@ Data Types
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* ARRAYS
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o Allow nulls in arrays
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o -Allow arrays to be ORDER'ed
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o Allow MIN()/MAX() on arrays
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o -Support construction of array result values in expressions (Joe)
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o Delay resolution of array expression type so assignment coercion
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can be performed on empty array expressions (Joe)
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@ -125,7 +108,6 @@ Multi-Language Support
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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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* -Remove Cyrillic recode support
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* Fix upper()/lower() to work for multibyte encodings
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@ -143,8 +125,6 @@ Views / Rules
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Indexes
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=======
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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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* Order duplicate index entries by tid 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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@ -152,13 +132,10 @@ Indexes
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INSERT INTO inherit_table (unique_index_col) VALUES (dup) should fail
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[inheritance]
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* Add UNIQUE capability to non-btree indexes
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* -Add btree index support for reltime, tinterval, regproc (Tom)
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* Add rtree index support for line, lseg, path, point
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* -Certain indexes will not shrink, e.g. indexes on ever-increasing
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columns and indexes with many duplicate keys
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* Use indexes for min() and max() or convert to SELECT col FROM tab ORDER
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BY col DESC LIMIT 1 if appropriate index exists and WHERE clause acceptible
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* -Allow LIKE indexing optimization for non-ASCII locales using special index
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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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* Be smarter about insertion of already-ordered data into btree index
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@ -170,7 +147,6 @@ Indexes
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float4, numeric/decimal too [optimizer]
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* Add FILLFACTOR to btree index creation
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* Add concurrency to GIST
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* -Improve concurrency of hash indexes (Tom)
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* Allow a single index to index multiple tables (for inheritance and subtables)
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@ -178,25 +154,19 @@ Commands
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========
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* Add BETWEEN ASYMMETRIC/SYMMETRIC (Christopher)
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* -Allow LIMIT/OFFSET to use expressions (Tom)
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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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* -Return proper effected tuple count from complex commands [return]
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* Allow UPDATE, DELETE to handle table aliases for self-joins [delete]
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* Add CORRESPONDING BY to UNION/INTERSECT/EXCEPT
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* Allow REINDEX to rebuild all indexes, remove /contrib/reindex
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* -Make a transaction-safe TRUNCATE (Rod)
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* Add ROLLUP, CUBE, GROUPING SETS options to GROUP BY
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* Add schema option to createlang
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* Allow savepoints / nested transactions [transactions] (Bruce)
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* Allow UPDATE tab SET ROW (col, ...) = (...) for updating multiple columns
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* -Allow UPDATE to use SET col = DEFAULT
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* -Add config variable to prevent auto-adding missing FROM-clause tables
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* Allow SET CONSTRAINTS to be qualified by schema/table
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* -Have SELECT '13 minutes'::interval display zero seconds in ISO datestyle
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* Prevent COMMENT ON DATABASE from using a database name
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* Add GUC variable to prevent waiting on locks
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* Allow TRUNCATE ... CASCADE/RESTRICT
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@ -221,8 +191,6 @@ Commands
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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 -Add ALTER TABLE tab SET WITHOUT OIDS (Rod)
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o -Add ALTER SEQUENCE to modify min/max/increment/cache/cycle values
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o Have ALTER TABLE rename SERIAL sequences
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o Allow columns to be reordered using ALTER ... POSITION i col1 [,col2];
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have SELECT * and INSERT honor such ordering
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@ -234,7 +202,6 @@ Commands
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* CLUSTER
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o Automatically maintain clustering on a table
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o -Allow CLUSTER to cluster all tables (Alvaro Herrera)
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* COPY
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o Allow dump/load of CSV format
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@ -245,11 +212,9 @@ Commands
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o Have COPY return number of rows loaded/unloaded
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* CURSOR
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o -MOVE 0 should not move to end of cursor (Bruce)
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o Allow UPDATE/DELETE WHERE CURRENT OF cursor using per-cursor tid
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stored in the backend (Gavin)
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o Prevent DROP of table being referenced by our own open cursor
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o -Allow cursors outside transactions
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* INSERT
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o Allow INSERT/UPDATE of system-generated oid value for a row
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@ -261,8 +226,6 @@ Commands
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o Add SET PERFORMANCE_TIPS option to suggest INDEX, VACUUM, VACUUM
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ANALYZE, and CLUSTER
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o Add SET PATH for schemas
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o -Allow EXPLAIN EXECUTE to see prepared plans
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o -Allow SHOW of some non-modifiable variables, like pg_controldata
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* SERVER-SIDE LANGUAGES
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o Allow PL/PgSQL's RAISE function to take expressions
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@ -277,10 +240,7 @@ Commands
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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 PL/PgSQL packages
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o -Allow array declarations and other data types in PL/PgSQL DECLARE
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o Add table function support to pltcl, plperl, plpython
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o -Make PL/PgSQL %TYPE schema-aware
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o -Allow PL/PgSQL to support array element assignment (Joe)
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o Add PL/PHP (Joe, Jan)
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o Allow PL/pgSQL to name columns by ordinal position, e.g. rec.(3)
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o Allow PL/pgSQL EXECUTE query_var INTO record_var;
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@ -291,15 +251,7 @@ Commands
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Clients
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=======
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* -Allow psql to show transaction status if backend protocol changes made
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* -Add schema, cast, and conversion backslash commands to psql (Christopher)
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* -Allow pg_dump to dump a specific schema (Neil Conway)
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* -Allow psql to do table completion for SELECT * FROM schema_part and
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table completion for SELECT * FROM schema_name.
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* Add XML capability to pg_dump and COPY, when backend XML capability
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* -Allow SSL-enabled clients to turn off SSL transfers
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* -Modify pg_get_triggerdef() to take a boolean to pretty-print,
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and use that as part of pg_dump along with psql
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* Allow psql \du to show groups, and add \dg for groups
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* Allow clients to query WITH HOLD cursors and prepared statements
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* Prevent unneeded quoting in psql \d output using fmtId()
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@ -324,16 +276,11 @@ Clients
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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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o -Add SQLSTATE
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o fix handling of DB attributes that are arrays
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o Use backend prepare/execute facility for ecpg where possible
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o -Make casts work in variable initializations
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o Implement SQLDA
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o Fix nested C comments
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o sqlwarn[6] should be 'W' if the PRECISION or SCALE value specified
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o -Allow multi-threaded use of SQLCA
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o -Understand structure definitions outside a declare section
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o -Allow :var[:index] or :var[<integer>] as cvariable for an array var
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* Python
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o Allow users to register their own types with pg_
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@ -353,7 +300,6 @@ Referential Integrity
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* Allow DEFERRABLE UNIQUE constraints
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* Allow triggers to be disabled [trigger]
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* With disabled triggers, allow pg_dump to use ALTER TABLE ADD FOREIGN KEY
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* -Support statement-level triggers (Neil)
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* Allow statement-level triggers to access modified rows
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* Support triggers on columns (Neil)
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* Have AFTER triggers execute after the appropriate SQL statement in a
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@ -457,8 +403,6 @@ Write-Ahead Log
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* Turn off after-change writes if fsync is disabled (?)
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* Add WAL index reliability improvement to non-btree indexes
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* Find proper defaults for postgresql.conf WAL entries
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* -Add checkpoint_min_warning postgresql.conf option to warn about checkpoints
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that are too frequent (Bruce)
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* Allow xlog directory location to be specified during initdb, perhaps
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using symlinks
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* Allow WAL information to recover corrupted pg_controldata
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@ -469,15 +413,9 @@ Write-Ahead Log
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Optimizer / Executor
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====================
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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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* -Add hash for evaluating GROUP BY aggregates (Tom)
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* -Allow merge and hash joins on expressions not just simple variables (Tom)
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* -Make IN/NOT IN have similar performance to EXISTS/NOT EXISTS (Tom)
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* Missing optimizer selectivities for date, r-tree, etc. [optimizer]
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* Allow ORDER BY ... LIMIT to select top values without sort or index
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using a sequential scan for highest/lowest values (Oleg)
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* -Inline simple SQL functions to avoid overhead (Tom)
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* Precompile SQL functions to avoid overhead (Neil)
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* Add 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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@ -492,7 +430,6 @@ Miscellaneous
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=============
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* Do async I/O for faster random read-ahead of data
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* -Get faster regex() code from Henry Spencer <henry@zoo.utoronto.ca>
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* Use mmap() rather than SYSV shared memory or to write WAL files (?) [mmap]
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* Improve caching of attribute offsets when NULLs exist in the row
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* Add a script to ask system configuration questions and tune postgresql.conf
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@ -508,8 +445,6 @@ Source Code
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* Move some things from /contrib into main tree
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* Remove warnings created by -Wcast-align
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* Move platform-specific ps status display info from ps_status.c to ports
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* -Modify regression tests to prevent failures do to minor numeric rounding
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* -Add OpenBSD's getpeereid() call for local socket authentication
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* Improve access-permissions check on data directory in Cygwin (Tom)
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* Add documentation for perl, including mention of DBI/DBD perl location
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* Create improved PostgreSQL introductory documentation for the PHP
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@ -523,7 +458,7 @@ Source Code
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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
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* Change CVS $Id: TODO,v 1.1169 2003/11/17 02:05:26 momjian Exp $ to $PostgreSQL: pgsql/doc/TODO,v 1.1169 2003/11/17 02:05:26 momjian Exp $
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* Change CVS $Id: TODO,v 1.1170 2003/11/19 17:34:01 momjian Exp $ to $PostgreSQL: pgsql/doc/TODO,v 1.1170 2003/11/19 17:34:01 momjian Exp $
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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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* Allow the regression tests to start postmaster with -i so the tests
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@ -534,17 +469,9 @@ Source Code
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* Wire Protocol Changes
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o -Show transaction status in psql
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o -Allow binding of query parameters, support for prepared queries
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o -Remove hard-coded limits on user/db/password names
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o -Remove unused elements of startup packet (unused, tty, passlength)
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o -Fix COPY/fastpath protocol
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o -Error codes
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o Dynamic character set handling
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o -Special passing of binary values in platform-neutral format (bytea?)
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o Add decoded type, length, precision
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o Compression?
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o -Report server version number, database encoding, client encoding
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o Update clients to use data types, typmod, schema.table.column names of
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result sets using new query protocol
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