mirror of
https://git.postgresql.org/git/postgresql.git
synced 2024-09-10 06:09:24 +02:00
146 lines
5.7 KiB
Plaintext
146 lines
5.7 KiB
Plaintext
====================================================
|
|
TODO list (FAQ) for Postgres95
|
|
====================================================
|
|
last updated: Thu Oct 3 17:59:06 EDT 1996
|
|
|
|
current maintainer: Bruce Momjian (maillist@candle.pha.pa.us)
|
|
|
|
The most recent version of this document can be viewed at
|
|
the postgres95 WWW site, http://www.ki.net/postgres95.
|
|
|
|
Dashed items(-) are being worked on or are ready for the 2.0 release.
|
|
|
|
RELIABILITY
|
|
-----------
|
|
-Overhaul mdmgr/smgr to fix double unlinking and double opens, cleanup
|
|
-Overhaul bufmgr/lockmgr/transaction manager
|
|
- remove -S (stable memory) option or fix memory manager
|
|
-Memory leaks (hunt and destroy with tools like Purify)
|
|
- fix unitialized reads of memory
|
|
- fix array over-runs of memory writes
|
|
-Fix CLUSTER
|
|
-Prevent improper index creation
|
|
-Change default decimal constant representation from float4 to float8
|
|
-Allow libpq to distinguish between text value '' and null
|
|
- using null bitmask returned from backend?
|
|
Fix all NULL features
|
|
allow psql to print nulls meaningfully
|
|
-Starting quote in insert string errors
|
|
ALTER TABLE bug - running postgress process needs to re-read table definition
|
|
Allow non-postgres users with createdb privs to destroydb's
|
|
Prevent SELECT NULL from crashing server
|
|
(error on first attempt, crash after another query)
|
|
-Fix elusive btree range/non-range bug
|
|
-Remove duplicate system catalog info or report mismatches
|
|
Fix compile and security of Kerberos V code
|
|
-Remove duplicate OIDS in system tables
|
|
Dropping a table twice causes corruption, drop/create not rollback-able
|
|
Change index creation to process deleted and current rows
|
|
|
|
ENHANCEMENTS
|
|
------------
|
|
Add full ANSI SQL capabilities ( a vendor has offered to help)
|
|
add subselects, possibility using temporary SQL functions
|
|
Implement HAVING clause
|
|
Implement IN qualifier
|
|
Implement EXISTS qualifier
|
|
Implement BETWEEN qualifier
|
|
add synonym of != for <>
|
|
column constraints (using rules), esp. primary keys
|
|
add DEFAULT, RESTRAINT, and CHECK capabilities
|
|
-add UNIQUE index capability
|
|
report "Not implemented" if valid syntax is supplied
|
|
add OUTER joins, left and right
|
|
make VIEWs updateable where possible
|
|
add UNIONS, INTERSECTS, SUBTRACTS
|
|
add temporary tables
|
|
add assertions
|
|
add domains
|
|
add sql3 recursive unions
|
|
add the concept of dataspaces
|
|
allow conversion type casts on select target fields
|
|
Allow compression of large fields or a compressed field type
|
|
Fix the rules system
|
|
robust
|
|
making INSTEAD rules work
|
|
Full set of text operations and functions
|
|
word searches, concat, upper/lower(), max() on text, char
|
|
-Replace table-level locking with row or page-level locking
|
|
Large objects
|
|
overwriting blocks has problems
|
|
there are other problems, too.
|
|
Fix large object mapping scheme
|
|
not to stuff everything as files in a single directory
|
|
Better interface for adding to pg_group
|
|
Make multi-field indexes easier to create
|
|
allow optimizer to effectively use parameters without accessing table
|
|
Add int8 type
|
|
Add table comments
|
|
Add support for tables >2G
|
|
Incorporate the PERL PG95 interface library into source tree
|
|
Threaded version of the server or libpq
|
|
Allow libpq to cancel query requests
|
|
Add REGEX internationalization
|
|
Add other language types for built-in functions
|
|
expand to allow tcl, perl, java,
|
|
generalize the function manager switch to pass
|
|
function sources to interpreter engines.
|
|
-Re-visit and fix vacuum
|
|
- can't vacuum large objects
|
|
- can't shrink tables, pg_time and pg_log
|
|
- allow actual compression, not just reuse on the same page
|
|
- allow vacuum to be run on one table or entire database
|
|
split apart row removal function from statistics function
|
|
allow time-travel to be turned off so superceeded/deleted row are reused
|
|
-Reverse meaning of HBA masks
|
|
Add hostname/user level access control rather than just hostname and user
|
|
Allow BY,ORDER BY to specify columns by number, or by non-alias table.column
|
|
Allow GROUP BY to use alias column name
|
|
Remove restriction that ORDER BY field must be in SELECT list?
|
|
Allow queries about owner of datbases, tables like:
|
|
SELECT u.usesysid FROM postgres.pg_user u;
|
|
DROP AGGREGATE should take in basetype as an arg
|
|
Add word index for text fields, maybe with trigrams, i.e.:
|
|
' (cat | dog) & ! fox ' meaning text has cat or dog, but not fox
|
|
Add common-sense constant type promotions
|
|
-Allow uppercase agregates by lowercasing function names on input
|
|
Allow readline-type or editor command editing of multi-line SQL commands
|
|
Allow pg_dump to dump all databases at a site in one command
|
|
-Allow restriction on who can create C functions
|
|
Allow restriction on who can create copy tables
|
|
-Allow installation-configuration option to auto-add all local users
|
|
Allow function result to be used in GROUP BY
|
|
-Fontend COPY
|
|
-Secure Authentication of local users
|
|
-Idend authentication of local users
|
|
|
|
PERFORMANCE
|
|
-----------
|
|
Optimizing disjunctive queries
|
|
Other optimizer bugs
|
|
Is fsync use optimized?
|
|
Multi-representational types, a la Illustra. For example, have a
|
|
text type that is stored in-tuple when less than 8K and in large
|
|
objects, when greater than 8K.
|
|
Use indexes in ORDER BY
|
|
Profile engine in INSERT's and other operations
|
|
Speed up hash creation by using btree's fast sort/insert routines
|
|
Cache most recent query plan(s?)
|
|
Allow compression of log and meta data
|
|
Allow LIKE/wildcard matches to use indexes if the wildcard character is not first
|
|
|
|
DOCUMENTATION
|
|
-------------
|
|
Update usermanual source
|
|
Reduce size of regression diffs
|
|
|
|
PORTABILITY
|
|
-----------
|
|
Windows NT port
|
|
Mariposa project at Berkeley has a person who's working on this
|
|
Win95 port, use GNU port or remove it?
|
|
Binary distributions for linux
|
|
Merge bsdi_2_1 to bsdi
|
|
Merge i386_solaris and sparc_solaris into solaris
|
|
Switch from PORTNAME to individual feature defines (use configure/autoconf?)
|