Index: TODO
===================================================================
RCS file: /home/projects/pgsql/cvsroot/pgsql/doc/TODO,v
retrieving revision 1.311
diff -r1.311 TODO
3c3
< Last updated: Tue Jan 2 21:23:11 EST 2001
---
> Last updated: Wed Jan 3 01:56:41 EST 2001
10c10
< A dash(-) marks changes that will appear in the upcoming 7.1 release.
---
> A dash (-) marks changes that will appear in the upcoming 7.1 release.
23c23
< * -Creating index of TIMESTAMP & RELTIME fails, or rename to DATETIME(Thomas)
---
> * -Creating index of TIMESTAMP & RELTIME fails, or rename to DATETIME (Thomas)
35c35
< * -Views containing aggregates sometimes fail(Jan)
---
> * -Views containing aggregates sometimes fail (Jan)
37,38c37,38
< duplicates(inherit)
< * -Disallow LOCK on view(Mark Hollomon)
---
> duplicates (inherit)
> * -Disallow LOCK on view (Mark Hollomon)
58,60c58,60
< * -Add OUTER joins, left and right[outer](Tom, Thomas)
< * -Allow long tuples by chaining or auto-storing outside db (TOAST)(Jan)
< * Fix memory leak for expressions[memory](Tom?)
---
> * -Add OUTER joins, left and right[outer] (Tom, Thomas)
> * -Allow long tuples by chaining or auto-storing outside db (TOAST) (Jan)
> * Fix memory leak for expressions[memory] (Tom?)
70c70
< * Allow row re-use without vacuum(Vadim)
---
> * Allow row re-use without vacuum (Vadim)
74c74
< * More access control over who can create tables and use locks(Karel)
---
> * More access control over who can create tables and use locks (Karel)
92c92
< o -Fix large object mapping scheme, own typeid or reltype(Peter)
---
> o -Fix large object mapping scheme, own typeid or reltype (Peter)
97c97
< * Fix improper masking of some inet/cidr types [cidr]
---
> * -Fix improper masking of some inet/cidr types [cidr]
113c113
< * Get BIT type working
---
> * -Get BIT type working
119c119
< * Update macaddr manufacturer numbers, or remove the function macaddr_manuf()
---
> * -Update macaddr manufacturer numbers, or remove the function macaddr_manuf()
147c147
< * -Add ALTER TABLE ALTER COLUMN feature(Peter E)
---
> * -Add ALTER TABLE ALTER COLUMN feature (Peter E)
157c157
< * Auto-destroy sequence on DROP of table with SERIAL(Ryan)
---
> * Auto-destroy sequence on DROP of table with SERIAL (Ryan)
166a167
> * Allow INSERT INTO tab (col1, ..) VALUES (val1, ..), (val2, ..)
172d172
< * Allow INSERT INTO tab (col1, ..) VALUES (val1, ..), (val2, ..)
176c176
< * Make NULL's come out at the beginning or end depending on the
---
> * Make NULL's come out at the beginning or end depending on the
220c220
< * Certain indexes will not shrink, i.e. oid indexes with many inserts(Vadim)
---
> * Certain indexes will not shrink, i.e. oid indexes with many inserts (Vadim)
226c226
< with after-row images(Vadim) [logging](Vadim)
---
> with after-row images (Vadim) [logging]
232c232
< * -Redesign the function call interface to handle NULLs better[function](Tom)
---
> * -Redesign the function call interface to handle NULLs better[function] (Tom)
239c239
< * Encrpyt passwords in pg_shadow table using MD5(Vince)
---
> * Encrpyt passwords in pg_shadow table using MD5 (Vince)
298a299,300
> * Create a transaction processor to aid in persistent connections and
> connection pooling
307c309
< * Remove SET KSQO option now that OR processing is improved(Tom)
---
> * Remove SET KSQO option now that OR processing is improved (Tom)
Index: TODO
===================================================================
RCS file: /home/projects/pgsql/cvsroot/pgsql/doc/TODO,v
retrieving revision 1.310
diff -r1.310 TODO
3c3
< Last updated: Wed Dec 27 00:44:44 EST 2000
---
> Last updated: Tue Jan 2 21:23:11 EST 2001
310a311
> * Allow libedit to be used in place of libreadline
Index: TODO
===================================================================
RCS file: /home/projects/pgsql/cvsroot/pgsql/doc/TODO,v
retrieving revision 1.309
diff -r1.309 TODO
3c3
< Last updated: Sat Dec 23 09:48:47 EST 2000
---
> Last updated: Wed Dec 27 00:44:44 EST 2000
60a61,70
> * Add replication of distributed databases [replication]
> o automatic fallover
> o load balancing
> o master/slave replication
> o multi-master replication
> o partition data across servers
> o sample implementation in contrib/rserv
> o queries across databases or servers (two-phase commit)
> * Point-in-time data recovery using backup and write-ahead log
> * Allow row re-use without vacuum(Vadim)
112c122
< * Make file in/out interface to TOAST columns
---
> * Make binary/file in/out interface for TOAST columns
122a133
> * Automatically create rules on views so they are updateable, per SQL92
173c184
< * allow psql \d to show temporary table schema
---
> * allow psql \d to show temporary table structure
195d205
< * Add replication of distributed databases [replication]
200a211,212
> * Incremental backups
> * Allow SQL92 schemas
205d216
< * Allow row re-use without vacuum(Vadim)
229a241
> * Allow Java server-side programming
278a291
> * Automatically keep clustering on a table
329d341
< 5~
Index: TODO
===================================================================
RCS file: /home/projects/pgsql/cvsroot/pgsql/doc/TODO,v
retrieving revision 1.308
diff -r1.308 TODO
3c3
< Last updated: Thu Dec 21 14:45:00 EST 2000
---
> Last updated: Sat Dec 23 09:48:47 EST 2000
72a73
> * Remove unused files during database vacuum or postmaster startup
Index: TODO
===================================================================
RCS file: /home/projects/pgsql/cvsroot/pgsql/doc/TODO,v
retrieving revision 1.307
diff -r1.307 TODO
3c3
< Last updated: Thu Dec 21 14:12:04 EST 2000
---
> Last updated: Thu Dec 21 14:45:00 EST 2000
32d31
< * Prevent BETWEEN from using duplicate nodes
Index: TODO
===================================================================
RCS file: /home/projects/pgsql/cvsroot/pgsql/doc/TODO,v
retrieving revision 1.306
diff -r1.306 TODO
3c3
< Last updated: Fri Dec 15 17:44:57 EST 2000
---
> Last updated: Thu Dec 21 14:12:04 EST 2000
31a32
> * Prevent BETWEEN from using duplicate nodes
Index: TODO
===================================================================
RCS file: /home/projects/pgsql/cvsroot/pgsql/doc/TODO,v
retrieving revision 1.305
diff -r1.305 TODO
3c3
< Last updated: Fri Dec 15 17:40:22 EST 2000
---
> Last updated: Fri Dec 15 17:44:57 EST 2000
312a313
> * Mark is Mark Hollomon <mhh@mindspring.com>
326a328
> 5~
Index: TODO
===================================================================
RCS file: /home/projects/pgsql/cvsroot/pgsql/doc/TODO,v
retrieving revision 1.304
diff -r1.304 TODO
3c3
< Last updated: Fri Dec 15 17:03:28 EST 2000
---
> Last updated: Fri Dec 15 17:40:22 EST 2000
318a319
> * Ross is Ross J. Reedstrom <reedstrm@wallace.ece.rice.edu>
Index: TODO
===================================================================
RCS file: /home/projects/pgsql/cvsroot/pgsql/doc/TODO,v
retrieving revision 1.303
diff -r1.303 TODO
3c3
< Last updated: Fri Dec 15 16:46:43 EST 2000
---
> Last updated: Fri Dec 15 17:03:28 EST 2000
319a320
> * Stephan is Stephan Szabo <sszabo@megazone23.bigpanda.com>
Index: TODO
===================================================================
RCS file: /home/projects/pgsql/cvsroot/pgsql/doc/TODO,v
retrieving revision 1.302
diff -r1.302 TODO
3c3
< Last updated: Tue Dec 12 23:01:53 EST 2000
---
> Last updated: Fri Dec 15 16:46:43 EST 2000
Index: TODO
===================================================================
RCS file: /home/projects/pgsql/cvsroot/pgsql/doc/TODO,v
retrieving revision 1.301
diff -r1.301 TODO
306d305
< * Bryan is Bryan Henderson<bryanh@giraffe.netgate.net>
308d306
< * David is David Hartwig <daveh@insightdist.com>
311c309,310
< * Hiroshi is Hiroshi Inoue<Inoue@tpf.co.jp>
---
> * Hiroshi is Hiroshi Inoue <Inoue@tpf.co.jp>
> * Karel is Karel Zak <zakkr@zf.jcu.cz>
314c313
< * Massimo Dal Zotto <dz@cs.unitn.it>
---
> * Massimo is Massimo Dal Zotto <dz@cs.unitn.it>
318c317
< * Philip Warner <pjw@rhyme.com.au>
---
> * Philip is Philip Warner <pjw@rhyme.com.au>
321d319
< * Stefan Simkovics <ssimkovi@rainbow.studorg.tuwien.ac.at>
326c324
< * Vadim is "Vadim B. Mikheev" <vadim4o@email.com>
---
> * Vadim is Vadim B. Mikheev <vadim4o@email.com>
Index: TODO
===================================================================
RCS file: /home/projects/pgsql/cvsroot/pgsql/doc/TODO,v
retrieving revision 1.300
diff -r1.300 TODO
3c3
< Last updated: Tue Dec 12 23:01:04 EST 2000
---
> Last updated: Tue Dec 12 23:01:53 EST 2000
21d20
< * test to show diffs for TODO changes
Index: TODO
===================================================================
RCS file: /home/projects/pgsql/cvsroot/pgsql/doc/TODO,v
retrieving revision 1.299
diff -r1.299 TODO
3c3
< Last updated: Tue Dec 12 15:27:50 EST 2000
---
> Last updated: Tue Dec 12 23:01:04 EST 2000
20a21
> * test to show diffs for TODO changes
have already modified "next_insert()" in 7.0-ecpglib. However
in the meaning of speed-up, the patch will be needed.
--
Regards,
SAKAIDA Masaaki -- Osaka, Japan
postgres build and use unixODBC (http://www.unixodbc.org)
This patch was applied against the postgresql-7.0beta1 build
Any problems let me know.
Nick Gorham
triggered
> function now returns the right datatype.
Oops, I got crossed up with Jan's improvements. Ignore this.
--
Peter Eisentraut Sernanders väg 10:115
peter_e@gmx.net 75262 Uppsala
* Document/trigger/rule so changes to pg_shadow recreate pg_pwd
I did it with a trigger and it seems to work like a charm. The function
that already updates the file for create and alter user has been made a
built-in "SQL" function and a trigger is created at initdb time.
Comments around the pg_pwd updating function seem to be worried about
this
routine being called concurrently, but I really don't see a reason to
worry about this. Verify for yourself. I guess we never had a system
trigger before, so treat this with care, and feel free to adjust the
nomenclature as well.
--
Peter Eisentraut Sernanders väg 10:115
at all, and because of shell quoting rules this can't be fixed, so I put
in error messages to that end.
Also, calling create or drop database in a transaction block is not so
good either, because the file system mysteriously refuses to roll back rm
calls on transaction aborts. :) So I put in checks to see if a transaction
is in progress and signal an error.
Also I put the whole call in a transaction of its own to be able to roll
back changes to pg_database in case the file system operations fail.
The alternative location issues I posted recently were untouched, awaiting
the outcome of that discussion. Other than that, this should be much more
fool-proof now.
The docs I cleaned up as well.
Peter Eisentraut Sernanders väg 10:115
<HTML>
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<TITLE>PostgreSQL TODO list</TITLE>
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<H1><A NAME="section-1">TODO list for PostgreSQL</A></H1>
Last updated: Tue Sep 28 00:34:21 EDT 1999
<P>
Current maintainer: Bruce Momjian (<A HREF="mailto:maillist@candle.pha.pa.us">maillist@candle.pha.pa.us</A>)
<P>
The most recent version of this document can be viewed at<BR>
the PostgreSQL web site, <A HREF="http://www.PostgreSQL.org">http://www.PostgreSQL.org</A>.
<P>
A dash(-) marks changes that will appear in the next release.
<P>
Names in brackets "[<A HREF="http://www.postgresql.org/docs/pgsql/doc/TODO.detail/"></A>]" indicate more detailed information is available in<BR>
the directory pgsql/doc/TODO.detail/ under that name.
<H2><A NAME="section-1.1">RELIABILITY</A></H2>
<P>
<STRONG>RESOURCES</STRONG>
<UL>
<LI> Elog() does not free all its memory(Jan)
<LI> spinlock stuck problem when elog(FATAL) and elog(ERROR) inside bufmgr
<LI> Recover or force failure when disk space is exhausted
</UL>
<P>
<STRONG>PARSER</STRONG>
<UL>
<LI> Disallow inherited columns with the same name as new columns
<LI> INSERT INTO ... SELECT with AS columns matching result columns problem
<LI> SELECT pg<U>class FROM pg</U>class generates strange error
<LI> Alter TABLE ADD COLUMN does not honor DEFAULT, add CONSTRAINT
<LI> Do not allow bpchar column creation without length
<LI> -Select a[<A HREF="http://www.postgresql.org/docs/pgsql/doc/TODO.detail/1">1</A>] FROM test fails, it needs test.a[<A HREF="http://www.postgresql.org/docs/pgsql/doc/TODO.detail/1">1</A>]
<LI> -Array index references without table name cause problems [<A HREF="http://www.postgresql.org/docs/pgsql/doc/TODO.detail/array">array</A>]
<LI> Update table SET table.value = 3 fails(SQL standard says this is OK)
<LI> Creating index of TIMESTAMP & RELTIME fails, or rename to DATETIME(Thomas)
<LI> SELECT foo UNION SELECT foo is incorrectly simplified to SELECT foo
<LI> -INSERT ... SELECT ... GROUP BY groups by target columns not source columns
<LI> -CREATE TABLE test (a char(5) DEFAULT text '', b int4) fails on INSERT
<LI> UNION with LIMIT fails
<LI> Unique index on base column not honored on inserts from inherited table
INSERT INTO inherit_table (unique<U>index</U>col) VALUES (dup) should fail
[<A HREF="http://www.postgresql.org/docs/pgsql/doc/TODO.detail/inherit">inherit</A>]
<LI> CREATE TABLE x AS SELECT 1 UNION SELECT 2 fails
<LI> CREATE TABLE test(col char(2) DEFAULT user) fails in length restriction
<LI> mismatched types in CREATE TABLE ... DEFAULT causes problems [<A HREF="http://www.postgresql.org/docs/pgsql/doc/TODO.detail/default">default</A>]
<LI> SELECT ... UNION ... ORDER BY fails when sort expr not in result list
<LI> Be smarter about promoting types when UNION merges different data types
<LI> SELECT ... UNION ... GROUP BY fails if column types disagree
<LI> redesign INSERT ... SELECT to have two levels of target list
<LI> -select * from pg_class where oid in (0,-1)
<LI> have INTERSECT/EXCEPT prevent duplicates unless ALL is specified
<LI> prevent primary key of nine columns [<A HREF="http://www.postgresql.org/docs/pgsql/doc/TODO.detail/primary">primary</A>]
<LI> SELECT COUNT('asdf') FROM pg_class WHERE oid=12 crashes
<LI> SELECT DISTINCT ON col1 col1 col2 FROM tab1 is broken [<A HREF="http://www.postgresql.org/docs/pgsql/doc/TODO.detail/distinct">distinct</A>]
<LI> -When using aggregates + GROUP BY, no rows in should yield no rows out
</UL>
<P>
<STRONG>VIEWS</STRONG>
<UL>
<LI> Views containing aggregates sometimes fail(Jan)
<LI> Views with spaces in view name fail when referenced
<LI> Creating view and inheriting the view causes view* to show
duplicates(inherit)
</UL>
<P>
<STRONG>MISC</STRONG>
<UL>
<LI> User who can create databases can modify pg_database table
<LI> Plpgsql does not handle quoted mixed-case identifiers
<LI> Fix btree to give a useful elog when key > 1/2 (page - overhead)
<LI> pg_dump should preserve primary key information
<LI> plpgsql regression tests fail on BSD/OS
</UL>
<H2><A NAME="section-1.2">ENHANCEMENTS</A></H2>
<P>
<STRONG>URGENT</STRONG>
<UL>
<LI> Add referential integrity(Jan?)[<A HREF="http://www.postgresql.org/docs/pgsql/doc/TODO.detail/primary">primary</A>]
<LI> Add OUTER joins, left and right[<A HREF="http://www.postgresql.org/docs/pgsql/doc/TODO.detail/outer">outer</A>](Thomas, Bruce)
<LI> Allow long tuples by chaining or auto-storing outside db (chaining,large objs)
<LI> Eliminate limits on query length
<LI> Fix memory leak for expressions?[<A HREF="http://www.postgresql.org/docs/pgsql/doc/TODO.detail/memory">memory</A>](Tom?)
<LI> -Fix memory leak for aggregates?
</UL>
<P>
<STRONG>ADMIN</STRONG>
<UL>
<LI> Better interface for adding to pg_group
<LI> More access control over who can create tables and access the database
<LI> Test syslog functionality
<LI> Allow elog() to return error codes, not just messages
<LI> Allow international error message support and add error codes
<LI> Generate postmaster pid file and remove flock/fcntl lock code [<A HREF="http://www.postgresql.org/docs/pgsql/doc/TODO.detail/flock">flock</A>]
<LI> Add ability to specifiy location of lock/socket files [<A HREF="http://www.postgresql.org/docs/pgsql/doc/TODO.detail/flock">flock</A>]
</UL>
<P>
<STRONG>TYPES</STRONG>
<UL>
<LI> Add BIT, BIT VARYING
<LI> Nchar (as distinguished from ordinary varchar),
<LI> Domain capability
<LI> Add STDDEV/VARIANCE() function for standard deviation computation/variance
<LI> Allow compression of large fields or a compressed field type
<LI> Large objects
<UL>
<LI> Fix large object mapping scheme, own typeid or reltype(Peter)
<LI> Allow large text type to use large objects(Peter)
<LI> Not to stuff everything as files in a single directory, hash dirs
<LI> Allow large object vacuuming
<LI> Tables that start with xinv confused to be large objects
</UL>
<LI> Allow pg_descriptions when creating types, tables, columns, and functions
<LI> Add IPv6 capability to INET/CIDR types
<LI> Make a separate SERIAL type?
<LI> Store binary-compatible type information in the system
<LI> Allow user to define char1 column
<LI> Add support for & operator
<LI> Allow LOCALE on a per-column basis, default to ASCII
<LI> Allow array on int8[<A HREF="http://www.postgresql.org/docs/pgsql/doc/TODO.detail/"></A>]
<LI> Allow nulls in arrays
<LI> Allow arrays to be ORDER'ed
<LI> Remove Money type, add money formatting for decimal type
<LI> Declare typein/out functions in pg_proc with a special "C string" data type
<LI> Add non-large-object binary field
<LI> -Add index on NUMERIC/DECIMAL type
<LI> Make Absolutetime/Relativetime int4 because time_t can be int8 on some ports
<LI> Functions returning sets don't really work right[<A HREF="http://www.postgresql.org/docs/pgsql/doc/TODO.detail/function">function</A>]
</UL>
<P>
<STRONG>VIEWS</STRONG>
<UL>
<LI> Allow DISTINCT on views
<LI> Allow views of aggregate columns
<LI> Allow views with subselects
</UL>
<P>
<STRONG>INDEXES</STRONG>
<UL>
<LI> Allow CREATE INDEX zman_index ON test (date_trunc( 'day', zman ) datetime_ops)
fails index can't store constant parameters
<LI> Allow creation of functional indexes to use default types
<LI> Permissions on indexes - prevent them?
<LI> Allow SQL function indexes
<LI> Add FILLFACTOR to index creation
<LI> Allow indexing of LIKE with localle character sets
<LI> Allow indexing of more than eight columns
</UL>
<P>
<STRONG>COMMANDS</STRONG>
<UL>
<LI> ALTER TABLE ADD COLUMN to inherited table put column in wrong place [<A HREF="http://www.postgresql.org/docs/pgsql/doc/TODO.detail/inherit">inherit</A>]
<LI> Add ALTER TABLE DROP/ALTER COLUMN feature
<LI> Allow CLUSTER on all tables at once, and improve CLUSTER, loses NOT
<P>
NULL specification on table [<A HREF="http://www.postgresql.org/docs/pgsql/doc/TODO.detail/cluster">cluster</A>]
<LI> Add SIMILAR TO to allow character classes, 'pg_[<A HREF="http://www.postgresql.org/docs/pgsql/doc/TODO.detail/a-c">a-c</A>]%'
<LI> Auto-destroy sequence on DROP of table with SERIAL(Ryan)
<LI> Allow LOCK TABLE tab1, tab2, tab3 so all tables locked in unison
<LI> Allow INSERT/UPDATE of system-generated oid value for a row
<LI> Allow ESCAPE '\' at the end of LIKE for ANSI compliance [<A HREF="http://www.postgresql.org/docs/pgsql/doc/TODO.detail/like">like</A>]
<LI> Rewrite the LIKE handling by rewriting the user string with the
supplied ESCAPE [<A HREF="http://www.postgresql.org/docs/pgsql/doc/TODO.detail/like">like</A>]
<LI> -Move LIKE index optimization handling to the optimizer
<LI> Allow RULE recompilation
<LI> Support UNION/INTERSECT/EXCEPT in sub-selects
<LI> Allow DELETE and UPDATE to use inheritance using tablename*
</UL>
<P>
<STRONG>CLIENTS</STRONG>
<UL>
<LI> Make NULL's come out at the beginning or end depending on the
ORDER BY direction
<LI> Allow flag to control COPY input/output of NULLs
<LI> Update reltuples from COPY command
<LI> Allow psql \copy to allow delimiters
<LI> Add a function to return the last inserted oid, for use in psql scripts
<LI> Allow psql to print nulls as distinct from "" [<A HREF="http://www.postgresql.org/docs/pgsql/doc/TODO.detail/null">null</A>]
</UL>
<P>
<STRONG>EXOTIC FEATURES</STRONG>
<UL>
<LI> Add sql3 recursive unions
<LI> Add the concept of dataspaces
<LI> Add replication of distributed databases
<LI> Allow queries across multiple databases
</UL>
<P>
<STRONG>MISC</STRONG>
<UL>
<LI> Increase identifier length(NAMEDATALEN) if small performance hit
<LI> Allow row re-use without vacuum(Vadim)
<LI> Create a background process for each database that runs while
database is idle, finding superceeded rows, gathering stats and vacuuming
<LI> Add UNIQUE capability to non-btree indexes
<LI> -Certain indexes will not shrink, i.e. oid indexes with many inserts
<LI> Restore unused oid's on backend exit if no one else has gotten oids
<LI> Have UPDATE/DELETE clean out indexes
<LI> Allow WHERE restriction on ctid
<LI> Allow cursors to be DECLAREd/OPENed/CLOSEed outside transactions
<LI> Allow PQrequestCancel() to terminate when in waiting-for-lock state
<LI> -Transaction log, so re-do log can be on a separate disk by
with after-row images(Vadim) [<A HREF="http://www.postgresql.org/docs/pgsql/doc/TODO.detail/logging">logging</A>]
<LI> Populate backend status area and write program to dump status data
<LI> Make oid use unsigned int more reliably, pg_atoi()
<LI> Allow subqueries in target list
<LI> Put sort files, large objects in their own directory
<LI> Do autocommit so always in a transaction block(?)
<LI> Show location of syntax error in query [<A HREF="http://www.postgresql.org/docs/pgsql/doc/TODO.detail/yacc">yacc</A>]
<LI> Redesign the function call interface to handle NULLs better [<A HREF="http://www.postgresql.org/docs/pgsql/doc/TODO.detail/function">function</A>]
<LI> Document/trigger/rule so changes to pg<U>shadow recreate pg</U>pwd [<A HREF="http://www.postgresql.org/docs/pgsql/doc/TODO.detail/pg_shadow">pg_shadow</A>]
<LI> Missing optimizer selectivities for date, r-tree, etc. [<A HREF="http://www.postgresql.org/docs/pgsql/doc/TODO.detail/optimizer">optimizer</A>]
<LI> Overhaul mdmgr/smgr to fix double unlinking and double opens, cleanup
<LI> Overhaul bufmgr/lockmgr/transaction manager
<LI> Add PL/Perl(Mark Hollomon)
<LI> Make postgres user have a password by default
<LI> Add configure test to check for C++ need for *.h and namespaces
<LI> Allow BLCKSZ <= 64k, not <= 32k
<LI> redesign UNION structures to have separarate target lists
<LI> Allow multi-level query trees for INSERT INTO ... SELECT
</UL>
<H2><A NAME="section-1.3">PERFORMANCE</A></H2>
<P>
<STRONG>FSYNC</STRONG>
<UL>
<LI> -Allow transaction commits with rollback with no-fsync performance [<A HREF="http://www.postgresql.org/docs/pgsql/doc/TODO.detail/fsync">fsync</A>]
<LI> -Prevent fsync in SELECT-only queries
</UL>
<P>
<STRONG>INDEXES</STRONG>
<UL>
<LI> Use indexes in ORDER BY for restrictive data sets, min(), max()
<LI> Pull requested data directly from indexes, bypassing heap data
<LI> Use index to restrict rows returned by multi-key index when used with
non-consecutive keys or OR clauses, so fewer heap accesses
<LI> -Convert function(constant) into a constant for index use
<LI> Allow LIMIT ability on single-table queries that have no ORDER BY to use
a matching index [<A HREF="http://www.postgresql.org/docs/pgsql/doc/TODO.detail/limit">limit</A>]
<LI> Improve LIMIT processing by using index to limit rows processed [<A HREF="http://www.postgresql.org/docs/pgsql/doc/TODO.detail/limit">limit</A>]
<LI> Have optimizer take LIMIT into account when considering index scans [<A HREF="http://www.postgresql.org/docs/pgsql/doc/TODO.detail/limit">limit</A>]
<LI> Make index creation use psort code, because it is now faster(Vadim)
<LI> Allow creation of sort temp tables > 1 Gig
<LI> Create more system table indexes for faster cache lookups
<LI> fix indexscan() so it does leak memory by not requiring caller to free
<LI> Improve <U>bt</U>binsrch() to handle equal keys better, remove <U>bt</U>firsteq()(Tom)
<LI> Allow SELECT * FROM tab WHERE int2col = 4 use int2col index, int8,
float4, numeric/decimal too [<A HREF="http://www.postgresql.org/docs/pgsql/doc/TODO.detail/optimizer">optimizer</A>]
<LI> -Allow optimizer to prefer plans that match ORDER BY
</UL>
<P>
<STRONG>CACHE</STRONG>
<UL>
<LI> Cache most recent query plan(s) [<A HREF="http://www.postgresql.org/docs/pgsql/doc/TODO.detail/prepare">prepare</A>]
<LI> Shared catalog cache, reduce lseek()'s by caching table size in shared area
<LI> elog() flushes cache, try invalidating just entries from current xact,
perhaps using invalidation cache
</UL>
<P>
<STRONG>MISC</STRONG>
<UL>
<LI> Allow compression of log and meta data
<LI> Allow char() not to use variable-sized header to reduce disk size
<LI> Do async I/O to do better read-ahead of data
<LI> -Fix memory exhaustion when using many OR's [<A HREF="http://www.postgresql.org/docs/pgsql/doc/TODO.detail/cnfify">cnfify</A>]
<LI> Get faster regex() code from Henry Spencer <<A HREF="mailto:henry@zoo.utoronto.ca">henry@zoo.utoronto.ca</A>>
when it is available
<LI> Use mmap() rather than SYSV shared memory(?)
<LI> -Process const = const parts of OR clause in separate pass
<LI> Make oid use oidin/oidout not int4in/int4out in pg_type.h
<LI> Improve Subplan list handling
<LI> Allow Subplans to use efficient joins(hash, merge) with upper variable
[<A HREF="http://www.postgresql.org/docs/pgsql/doc/TODO.detail/subquery">subquery</A>]
<LI> use fmgr_info()/fmgr_faddr() instead of fmgr() calls in high-traffic
places, like GROUP BY, UNIQUE, index processing, etc.
<LI> improve dynamic memory allocation by introducing tuple-context memory
allocation [<A HREF="http://www.postgresql.org/docs/pgsql/doc/TODO.detail/memory">memory</A>]
<LI> fix memory leak in cache code when non-existant table is referenced
<LI> In WHERE tab1.x=3 AND tab1.x=tab2.y, add tab2.y=3
<LI> pass atttypmod through parser in more cases [<A HREF="http://www.postgresql.org/docs/pgsql/doc/TODO.detail/atttypmod">atttypmod</A>]
<LI> remove duplicate type in/out functions for disk and net
<LI> Allow persistent backends [<A HREF="http://www.postgresql.org/docs/pgsql/doc/TODO.detail/persistent">persistent</A>]
<LI> Misc [<A HREF="http://www.postgresql.org/docs/pgsql/doc/TODO.detail/performance">performance</A>]
</UL>
<H2><A NAME="section-1.4">SOURCE CODE</A></H2>
<UL>
<LI> Add use of 'const' for varibles in source tree
<LI> Fix C optimizer problem where fmgr_ptr calls return different types [<A HREF="http://www.postgresql.org/docs/pgsql/doc/TODO.detail/alpha">alpha</A>]
<LI> -Add needed includes and removed unneeded include files(Bruce)
<LI> Make configure --enable-debug add -g on compile line
<LI> Does Mariposa source contain any other bug fixes?
<LI> Remove SET KSQO option if OR processing is improved(Tom)
</UL>
<HR>
<H3><A NAME="section-1.4.1">Developers who have claimed items are:</A></H3>
<UL>
<LI> Billy is Billy G. Allie <<A HREF="mailto:Bill.Allie@mug.org">Bill.Allie@mug.org</A>>
<LI> Brook is Brook Milligan <<A HREF="mailto:brook@trillium.NMSU.Edu">brook@trillium.NMSU.Edu</A>>
<LI> Bruce is Bruce Momjian<<A HREF="mailto:maillist@candle.pha.pa.us">maillist@candle.pha.pa.us</A>>
<LI> Bryan is Bryan Henderson<<A HREF="mailto:bryanh@giraffe.netgate.net">bryanh@giraffe.netgate.net</A>>
<LI> D'Arcy is D'Arcy J.M. Cain <<A HREF="mailto:darcy@druid.net">darcy@druid.net</A>>
<LI> David is David Hartwig <<A HREF="mailto:daveh@insightdist.com">daveh@insightdist.com</A>>
<LI> Edmund is Edmund Mergl <<A HREF="mailto:E.Mergl@bawue.de">E.Mergl@bawue.de</A>>
<LI> Goran is Goran Thyni <<A HREF="mailto:goran@kyla.kiruna.se">goran@kyla.kiruna.se</A>>
<LI> Hiroshi is Hiroshi Inoue<<A HREF="mailto:Inoue@tpf.co.jp">Inoue@tpf.co.jp</A>>
<LI> Jan is Jan Wieck <<A HREF="mailto:wieck@sapserv.debis.de">wieck@sapserv.debis.de</A>>
<LI> Marc is Marc Fournier <<A HREF="mailto:scrappy@hub.org">scrappy@hub.org</A>>
<LI> Massimo Dal Zotto <<A HREF="mailto:dz@cs.unitn.it">dz@cs.unitn.it</A>>
<LI> Michael is Michael Meskes <<A HREF="mailto:meskes@postgresql.org">meskes@postgresql.org</A>>
<LI> Oleg is Oleg Bartunov <<A HREF="mailto:oleg@sai.msu.su">oleg@sai.msu.su</A>>
<LI> Peter is Peter T Mount <<A HREF="mailto:peter@retep.org.uk">peter@retep.org.uk</A>>
<LI> Ryan is Ryan Bradetich <<A HREF="mailto:rbrad@hpb50023.boi.hp.com">rbrad@hpb50023.boi.hp.com</A>>
<LI> Stefan Simkovics <<A HREF="mailto:ssimkovi@rainbow.studorg.tuwien.ac.at">ssimkovi@rainbow.studorg.tuwien.ac.at</A>>
<LI> Tatsuo is Tatsuo Ishii <<A HREF="mailto:t-ishii@sra.co.jp">t-ishii@sra.co.jp</A>>
<LI> Tom is Tom Lane <<A HREF="mailto:tgl@sss.pgh.pa.us">tgl@sss.pgh.pa.us</A>>
<LI> Thomas is Thomas Lockhart <<A HREF="mailto:lockhart@alumni.caltech.edu">lockhart@alumni.caltech.edu</A>>
<LI> TomH is Tom I Helbekkmo <<A HREF="mailto:tih@Hamartun.Priv.NO">tih@Hamartun.Priv.NO</A>>
<LI> Vadim is "Vadim B. Mikheev" <<A HREF="mailto:vadim@krs.ru">vadim@krs.ru</A>>
</UL>
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