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-From: Bruce Momjian <maillist@candle.pha.pa.us>
-Message-Id: <199608062357.TAA11618@candle.pha.pa.us>
-Subject: add TODO to distribution
-To: scrappy@ki.net (Marc G. Fournier)
-Date: Tue, 6 Aug 1996 19:57:36 -0400 (EDT)
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-
-Here is the current TODO list. Let's add it to the next distribution.
-This was not ready at the time of the 1.02 release.
-
----------------------------------------------------------------------------
-
-
-=================================================
+====================================================
TODO list (FAQ) for Postgres95
-==================================================
-last updated: Mon Aug 5 21:00:12 EDT 1996
+====================================================
+last updated: Thu Oct 3 17:59:06 EDT 1996
current maintainer: Bruce Momjian (maillist@candle.pha.pa.us)
-original author: Jolly Chen (jolly@cs.berkeley.edu)
+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
-Memory leaks (hunt and destroy with tools like Purify)
- fix unitialized reads of memory
- fix array over-runs of memory writes
-Re-visit and fix vacuum
- can't vacuum large objects
- can't shrink tables, pg_time and pg_log
+-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
-DROP AGGREGATE should take in basetype as an arg
-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.
-Fix large object mapping scheme
- not to stuff everything as files in a single directory
-Fix CLUSTER
-Prevent improper index creation
-Starting quote in insert string errors
-Change default decimal constant representation from float4 to float8
+ 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 libpq to distinguish between text value '' and null
Allow non-postgres users with createdb privs to destroydb's
-
-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.
+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
+ 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, UNIQUE, RESTRAINT, and CHECK capabilities
+ add DEFAULT, RESTRAINT, and CHECK capabilities
+ -add UNIQUE index capability
report "Not implemented" if valid syntax is supplied
- add OUTER joins
+ add OUTER joins, left and right
make VIEWs updateable where possible
add UNIONS, INTERSECTS, SUBTRACTS
add temporary tables
add domains
add sql3 recursive unions
add the concept of dataspaces
- Implement HAVING clause
- Implement IN qualifier
-Add a way to preserve oid's when doing dump and load
- if not, make oid's accessable in insert rules
-Add word index for text fields, maybe with trigrams, i.e.:
- ' (cat | dog) & ! fox ' meaning text has cat or dog, but not fox
+ 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
+-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
-Improve debugging output
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
-------------
-Better documentation. Write a real book on postgres, perhaps?
-Document OPENLINK fsync patch
Update usermanual source
Reduce size of regression diffs
-----------
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?)
projects / postgresql / commitdiff