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Mark "easy" items.

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Jim C. Nasby
This commit is contained in:
Bruce Momjian
2005-08-24 14:05:37 +00:00
parent 6ca102d676
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doc/TODO
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@ -2,12 +2,13 @@
PostgreSQL TODO List
====================
Current maintainer: Bruce Momjian (pgman@candle.pha.pa.us)
Last updated: Wed Aug 24 10:00:31 EDT 2005
Last updated: Wed Aug 24 10:05:23 EDT 2005
The most recent version of this document can be viewed at
http://www.postgresql.org/docs/faqs.TODO.html.
#A hyphen, "-", marks changes that will appear in the upcoming 8.1 release.#
#A percent sign, "%", marks items that are easier to implement.#
Bracketed items, "[]", have more detail.
@ -19,10 +20,10 @@ first.
Administration
==============
* Remove behavior of postmaster -o after making postmaster/postgres
* %Remove behavior of postmaster -o after making postmaster/postgres
flags unique
* -Allow limits on per-db/role connections
* Allow pooled connections to list all prepared queries
* %Allow pooled connections to list all prepared queries
This would allow an application inheriting a pooled connection to know
the queries prepared in the current session.
@ -37,7 +38,7 @@ Administration
Currently SIGTERM of a backend can lead to lock table corruption.
* -Prevent dropping user that still owns objects, or auto-drop the objects
* Set proper permissions on non-system schemas during db creation
* %Set proper permissions on non-system schemas during db creation
Currently all schemas are owned by the super-user because they are
copied from the template1 database.
@ -61,16 +62,16 @@ Administration
* Configuration files
o Add "include file" functionality in postgresql.conf
o %Add "include file" functionality in postgresql.conf
o Allow postgresql.conf values to be set so they can not be changed
by the user
o Allow commenting of variables in postgresql.conf to restore them
o %Allow commenting of variables in postgresql.conf to restore them
to defaults
Currently, if a variable is commented out, it keeps the
previous uncommented value until a server restarted.
o Allow pg_hba.conf settings to be controlled via SQL
o %Allow pg_hba.conf settings to be controlled via SQL
This would add a function to load the SQL table from
pg_hba.conf, and one to writes its contents to the flat file.
@ -78,7 +79,7 @@ Administration
can be inserted between existing rows, e.g. row 2.5 goes
between row 2 and row 3.
o Allow postgresql.conf file values to be changed via an SQL
o %Allow postgresql.conf file values to be changed via an SQL
API, perhaps using SET GLOBAL
o Allow the server to be stopped/restarted via an SQL API
@ -106,7 +107,7 @@ Administration
requires a tool that will call that function and connect to each
database to find the objects in each database for that tablespace.
o Add a GUC variable to control the tablespace for temporary objects
o %Add a GUC variable to control the tablespace for temporary objects
and sort files
It could start with a random tablespace from a supplied list and
@ -135,7 +136,7 @@ Administration
the archive contins all the files needed for point-in-time
recovery.
o Create dump tool for write-ahead logs for use in determining
o %Create dump tool for write-ahead logs for use in determining
transaction id for point-in-time recovery
o Allow a warm standby system to also allow read-only queries
[pitr]
@ -153,7 +154,7 @@ Monitoring
This would allow server log information to be easily loaded into
a database for analysis.
* Add ability to monitor the use of temporary sort files
* %Add ability to monitor the use of temporary sort files
* -Add session start time and last statement time to pg_stat_activity
* -Add a function that returns the start time of the postmaster
* Allow server logs to be remotely read and removed using SQL commands
@ -162,7 +163,7 @@ Monitoring
Data Types
==========
* Remove Money type, add money formatting for decimal type
* %Remove Money type, add money formatting for decimal type
* Change NUMERIC to enforce the maximum precision, and increase it
* Add NUMERIC division operator that doesn't round?
@ -177,14 +178,14 @@ Data Types
* Have sequence dependency track use of DEFAULT sequences,
seqname.nextval?
* Disallow changing default expression of a SERIAL column?
* %Disallow changing default expression of a SERIAL column?
* Fix data types where equality comparison isn't intuitive, e.g. box
* Prevent INET cast to CIDR if the unmasked bits are not zero, or
* %Prevent INET cast to CIDR if the unmasked bits are not zero, or
zero the bits
* Prevent INET cast to CIDR from droping netmask, SELECT '1.1.1.1'::inet::cidr
* %Prevent INET cast to CIDR from droping netmask, SELECT '1.1.1.1'::inet::cidr
* Allow INET + INT4 to increment the host part of the address, or
throw an error on overflow
* Add 'tid != tid ' operator for use in corruption recovery
* %Add 'tid != tid ' operator for use in corruption recovery
* Dates and Times
@ -221,7 +222,7 @@ Data Types
* Arrays
o Allow NULLs in arrays
o Allow MIN()/MAX() on arrays
o %Allow MIN()/MAX() on arrays
o Delay resolution of array expression's data type so assignment
coercion can be performed on empty array expressions
o Modify array literal representation to handle array index lower bound
@ -255,7 +256,7 @@ Functions
make time reporting more consistent and will allow reporting of
the statement start time.
* Add pg_get_acldef(), pg_get_typedefault(), and pg_get_attrdef()
* %Add pg_get_acldef(), pg_get_typedefault(), and pg_get_attrdef()
* Allow to_char() to print localized month names
* Allow functions to have a schema search path specified at creation time
* Allow substring/replace() to get/set bit values
@ -304,16 +305,16 @@ Multi-Language Support
Views / Rules
=============
* Automatically create rules on views so they are updateable, per SQL99
* %Automatically create rules on views so they are updateable, per SQL99
We can only auto-create rules for simple views. For more complex
cases users will still have to write rules.
* Add the functionality for WITH CHECK OPTION clause of CREATE VIEW
* Allow NOTIFY in rules involving conditionals
* Have views on temporary tables exist in the temporary namespace
* %Have views on temporary tables exist in the temporary namespace
* Allow temporary views on non-temporary tables
* Allow RULE recompilation
* %Allow RULE recompilation
SQL Commands
@ -333,9 +334,9 @@ SQL Commands
* Add CORRESPONDING BY to UNION/INTERSECT/EXCEPT
* -Allow REINDEX to rebuild all database indexes
* Add ROLLUP, CUBE, GROUPING SETS options to GROUP BY
* Allow SET CONSTRAINTS to be qualified by schema/table name
* Allow TRUNCATE ... CASCADE/RESTRICT
* Add a separate TRUNCATE permission
* %Allow SET CONSTRAINTS to be qualified by schema/table name
* %Allow TRUNCATE ... CASCADE/RESTRICT
* %Add a separate TRUNCATE permission
Currently only the owner can TRUNCATE a table because triggers are not
called, and the table is locked in exclusive mode.
@ -367,7 +368,7 @@ SQL Commands
triggers?)
* Add NOVICE output level for helpful messages like automatic sequence/index
creation
* Add COMMENT ON for all cluster global objects (roles, databases
* %Add COMMENT ON for all cluster global objects (roles, databases
and tablespaces)
* -Add an option to automatically use savepoints for each statement in a
multi-statement transaction.
@ -420,11 +421,11 @@ SQL Commands
* ALTER
o Have ALTER TABLE RENAME rename SERIAL sequence names
o Add ALTER DOMAIN TYPE
o Allow ALTER TABLE ... ALTER CONSTRAINT ... RENAME
o Allow ALTER TABLE to change constraint deferrability and actions
o Disallow dropping of an inherited constraint
o %Have ALTER TABLE RENAME rename SERIAL sequence names
o %Add ALTER DOMAIN TYPE
o %Allow ALTER TABLE ... ALTER CONSTRAINT ... RENAME
o %Allow ALTER TABLE to change constraint deferrability and actions
o %Disallow dropping of an inherited constraint
o -Allow objects to be moved to different schemas
o Allow ALTER TABLESPACE to move to different directories
o Allow databases to be moved to different tablespaces
@ -433,7 +434,7 @@ SQL Commands
Currently non-global system tables must be in the default database
tablespace. Global system tables can never be moved.
o Prevent child tables from altering constraints like CHECK that were
o %Prevent child tables from altering constraints like CHECK that were
inherited from the parent table
@ -449,7 +450,7 @@ SQL Commands
store heap rows in hashed groups, perhaps using a user-supplied
hash function.
o Add default clustering to system tables
o %Add default clustering to system tables
To do this, determine the ideal cluster index for each system
table and set the cluster setting during initdb.
@ -463,7 +464,7 @@ SQL Commands
processed, with ROLLBACK on COPY failure.
o -Allow COPY to understand \x as a hex byte
o Have COPY return the number of rows loaded/unloaded?
o %Have COPY return the number of rows loaded/unloaded?
o -Allow COPY to optionally include column headings in the first line
o -Allow COPY FROM ... CSV to interpret newlines and carriage
returns in data
@ -472,7 +473,7 @@ SQL Commands
* GRANT/REVOKE
o Allow column-level privileges
o Allow GRANT/REVOKE permissions to be applied to all schema objects
o %Allow GRANT/REVOKE permissions to be applied to all schema objects
with one command
The proposed syntax is:
@ -495,7 +496,7 @@ SQL Commands
o Prevent DROP TABLE from dropping a row referenced by its own open
cursor?
o Allow pooled connections to list all open WITH HOLD cursors
o %Allow pooled connections to list all open WITH HOLD cursors
Because WITH HOLD cursors exist outside transactions, this allows
them to be listed so they can be closed.
@ -589,22 +590,22 @@ Clients
* pg_dump
o Have pg_dump use multi-statement transactions for INSERT dumps
o Allow pg_dump to use multiple -t and -n switches [pg_dump]
o Add dumping of comments on composite type columns
o Add dumping of comments on index columns
o Replace crude DELETE FROM method of pg_dumpall --clean for
o %Have pg_dump use multi-statement transactions for INSERT dumps
o %Allow pg_dump to use multiple -t and -n switches [pg_dump]
o %Add dumping of comments on composite type columns
o %Add dumping of comments on index columns
o %Replace crude DELETE FROM method of pg_dumpall --clean for
cleaning of roles with separate DROP commands
o -Add dumping and restoring of LOB comments
o Stop dumping CASCADE on DROP TYPE commands in clean mode
o Add full object name to the tag field. eg. for operators we need
o %Add full object name to the tag field. eg. for operators we need
'=(integer, integer)', instead of just '='.
o Add pg_dumpall custom format dumps.
This is probably best done by combining pg_dump and pg_dumpall
into a single binary.
o Add CSV output format
o %Add CSV output format
o Update pg_dump and psql to use the new COPY libpq API (Christopher)
o Remove unnecessary abstractions in pg_dump source code
@ -622,7 +623,7 @@ Clients
o Use backend PREPARE/EXECUTE facility for ecpg where possible
o Implement SQLDA
o Fix nested C comments
o sqlwarn[6] should be 'W' if the PRECISION or SCALE value specified
o %sqlwarn[6] should be 'W' if the PRECISION or SCALE value specified
o Make SET CONNECTION thread-aware, non-standard?
o Allow multidimensional arrays
o Add internationalized message strings
@ -657,7 +658,7 @@ Referential Integrity
* Allow statement-level triggers to access modified rows
* Support triggers on columns (Greg Sabino Mullane)
* Remove CREATE CONSTRAINT TRIGGER
* %Remove CREATE CONSTRAINT TRIGGER
This was used in older releases to dump referential integrity
constraints.
@ -808,7 +809,7 @@ Fsync
* Improve commit_delay handling to reduce fsync()
* Determine optimal fdatasync/fsync, O_SYNC/O_DSYNC options
* -Allow multiple blocks to be written to WAL with one write()
* Add an option to sync() before fsync()'ing checkpoint files
* %Add an option to sync() before fsync()'ing checkpoint files
* Add program to test if fsync has a delay compared to non-fsync
@ -906,14 +907,14 @@ Vacuum
VACUUM can look at just those pages rather than the entire table. In
the event of a system crash, the bitmap would probably be invalidated.
* Add system view to show free space map contents
* %Add system view to show free space map contents
* Auto-vacuum
o -Move into the backend code
o Use free-space map information to guide refilling
o Suggest VACUUM FULL if a table is nearly empty
o %Suggest VACUUM FULL if a table is nearly empty
o Improve xid wraparound detection by recording per-table rather
than per-database
@ -1079,7 +1080,7 @@ Source Code
* Rename some /contrib modules from pg* to pg_*
* Move some things from /contrib into main tree
* Move some /contrib modules out to their own project sites
* Remove warnings created by -Wcast-align
* %Remove warnings created by -Wcast-align
* Move platform-specific ps status display info from ps_status.c to ports
* Add optional CRC checksum to heap and index pages
* Improve documentation to build only interfaces (Marc)
@ -1110,6 +1111,7 @@ Source Code
* Fix cross-compiling of time zone database via 'zic'
* Fix sgmltools so PDFs can be generated with bookmarks
* -Add C code on Unix to copy directories for use in creating new databases
* %Clean up compiler warnings (especially with gcc version 4)
* Win32