Update:
< Last updated: Sat Sep 2 08:31:04 EDT 2006 > Last updated: Sat Sep 2 16:31:46 EDT 2006 < o Allow UPDATE tab SET ROW (col, ...) = (...) for updating multiple < columns > o -Allow UPDATE tab SET ROW (col, ...) = (val, ...) for updating > multiple columns > o Allow UPDATE tab SET ROW (col, ...) = (SELECT...) < A subselect can also be used as the value source.
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Bruce Momjian
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doc/TODO
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c
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PostgreSQL TODO List
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====================
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Current maintainer: Bruce Momjian (bruce@momjian.us)
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Last updated: Sat Sep 2 08:31:04 EDT 2006
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Last updated: Sat Sep 2 16:31:46 EDT 2006
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The most recent version of this document can be viewed at
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http://www.postgresql.org/docs/faqs.TODO.html.
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@ -543,10 +543,10 @@ SQL Commands
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* UPDATE
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o -Allow an alias to be provided for the target table in
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UPDATE/DELETE (Neil)
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o Allow UPDATE tab SET ROW (col, ...) = (...) for updating multiple
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columns
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o -Allow UPDATE tab SET ROW (col, ...) = (val, ...) for updating
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multiple columns
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o Allow UPDATE tab SET ROW (col, ...) = (SELECT...)
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A subselect can also be used as the value source.
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http://archives.postgresql.org/pgsql-hackers/2006-07/msg01306.php
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@ -2,16 +2,14 @@
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"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html>
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<head>
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<title>c</title>
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<title>PostgreSQL TODO List</title>
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<meta name="generator" content="HTML::TextToHTML v2.25"/>
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</head>
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<body bgcolor="#FFFFFF" text="#000000" link="#FF0000" vlink="#A00000" alink="#0000FF">
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<p>c<br/>
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PostgreSQL TODO List
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</p><hr/>
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Current maintainer: Bruce Momjian (<a href="mailto:bruce@momjian.us">bruce@momjian.us</a>)<br/>
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Last updated: Sat Sep 2 08:31:04 EDT 2006
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<h1><a name="section_1">PostgreSQL TODO List</a></h1>
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<p>Current maintainer: Bruce Momjian (<a href="mailto:bruce@momjian.us">bruce@momjian.us</a>)<br/>
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Last updated: Sat Sep 2 16:31:46 EDT 2006
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</p>
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<p>The most recent version of this document can be viewed at<br/>
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<a href="http://www.postgresql.org/docs/faqs.TODO.html">http://www.postgresql.org/docs/faqs.TODO.html</a>.
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</p>
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@ -24,7 +22,7 @@ Last updated: Sat Sep 2 08:31:04 EDT 2006
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you would like to work on an item, please read the Developer's FAQ<br/>
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first.
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</p>
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<h1><a name="section_1">Administration</a></h1>
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<h1><a name="section_2">Administration</a></h1>
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<ul>
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<li>-<em>Make postmater and postgres options distinct so the postmaster -o</em>
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@ -152,7 +150,7 @@ first.
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</li><li>Allow the PITR process to be debugged and data examined
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</li></ul>
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</li></ul>
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<h1><a name="section_2">Monitoring</a></h1>
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<h1><a name="section_3">Monitoring</a></h1>
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<ul>
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<li>Allow server log information to be output as INSERT statements
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@ -163,7 +161,7 @@ first.
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</li><li>-<em>Allow server logs to be remotely read and removed using SQL commands</em>
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</li><li>-<em>Allow protocol-level BIND parameter values to be logged, if text mode</em>
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</li></ul>
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<h1><a name="section_3">Data Types</a></h1>
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<h1><a name="section_4">Data Types</a></h1>
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<ul>
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<li>Improve the MONEY data type
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@ -298,7 +296,7 @@ first.
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</li></ul>
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</li></ul>
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</li></ul>
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<h1><a name="section_4">Functions</a></h1>
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<h1><a name="section_5">Functions</a></h1>
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<ul>
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<li>Allow INET subnet tests using non-constants to be indexed
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@ -341,7 +339,7 @@ first.
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</li><li>Add SPI_gettypmod() to return the typemod for a TupleDesc
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</li><li>Allow inlining of set-returning functions
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</li></ul>
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<h1><a name="section_5">Multi-Language Support</a></h1>
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<h1><a name="section_6">Multi-Language Support</a></h1>
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<ul>
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<li>Add NCHAR (as distinguished from ordinary varchar),
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@ -372,7 +370,7 @@ first.
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<a href="http://archives.postgresql.org/pgsql-patches/2005-11/msg00173.php">http://archives.postgresql.org/pgsql-patches/2005-11/msg00173.php</a>
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</p>
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</li></ul>
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<h1><a name="section_6">Views / Rules</a></h1>
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<h1><a name="section_7">Views / Rules</a></h1>
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<ul>
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<li>Automatically create rules on views so they are updateable, per SQL99
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@ -388,7 +386,7 @@ first.
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are added after the view is created.
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</p>
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</li></ul>
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<h1><a name="section_7">SQL Commands</a></h1>
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<h1><a name="section_8">SQL Commands</a></h1>
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<ul>
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<li>-<em>Change LIMIT/OFFSET and FETCH/MOVE to use int8</em>
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@ -498,10 +496,10 @@ first.
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<ul>
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<li>-<em>Allow an alias to be provided for the target table in</em>
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UPDATE/DELETE (Neil)
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</li><li>Allow UPDATE tab SET ROW (col, ...) = (...) for updating multiple
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columns
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<p> A subselect can also be used as the value source.
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<a href="http://archives.postgresql.org/pgsql-hackers/2006-07/msg01306.php">http://archives.postgresql.org/pgsql-hackers/2006-07/msg01306.php</a>
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</li><li>-<em>Allow UPDATE tab SET ROW (col, ...) = (val, ...) for updating</em>
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multiple columns
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</li><li>Allow UPDATE tab SET ROW (col, ...) = (SELECT...)
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<p> <a href="http://archives.postgresql.org/pgsql-hackers/2006-07/msg01306.php">http://archives.postgresql.org/pgsql-hackers/2006-07/msg01306.php</a>
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</p>
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</li></ul>
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</li><li>ALTER
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@ -679,7 +677,7 @@ first.
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</li></ul>
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</li></ul>
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</li></ul>
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<h1><a name="section_8">Clients</a></h1>
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<h1><a name="section_9">Clients</a></h1>
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<ul>
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<li>-<em>Have initdb set the input DateStyle (MDY or DMY) based on locale</em>
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@ -788,7 +786,7 @@ first.
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</p>
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</li></ul>
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</li></ul>
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<h1><a name="section_9">Triggers</a></h1>
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<h1><a name="section_10">Triggers</a></h1>
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<ul>
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<li>Add deferred trigger queue file
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<p> Right now all deferred trigger information is stored in backend
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@ -816,7 +814,7 @@ first.
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to fire triggers.
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</p>
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</li></ul>
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<h1><a name="section_10">Dependency Checking</a></h1>
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<h1><a name="section_11">Dependency Checking</a></h1>
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<ul>
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<li>Flush cached query plans when the dependent objects change,
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@ -833,7 +831,7 @@ first.
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invalidate its own query plan.
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</p>
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</li></ul>
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<h1><a name="section_11">Exotic Features</a></h1>
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<h1><a name="section_12">Exotic Features</a></h1>
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<ul>
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<li>Add pre-parsing phase that converts non-ISO syntax to supported
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@ -860,7 +858,7 @@ first.
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<p> <a href="http://archives.postgresql.org/pgsql-hackers/2004-04/msg00818.php">http://archives.postgresql.org/pgsql-hackers/2004-04/msg00818.php</a>
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</p>
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</li></ul>
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<h1><a name="section_12">Indexes</a></h1>
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<h1><a name="section_13">Indexes</a></h1>
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<ul>
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<li>Allow inherited tables to inherit index, UNIQUE constraint, and primary
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@ -927,7 +925,7 @@ first.
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</li><li>Allow multi-column hash indexes
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</li></ul>
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</li></ul>
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<h1><a name="section_13">Fsync</a></h1>
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<h1><a name="section_14">Fsync</a></h1>
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<ul>
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<li>Improve commit_delay handling to reduce fsync()
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@ -939,7 +937,7 @@ first.
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</li><li>%Add an option to sync() before fsync()'ing checkpoint files
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</li><li>Add program to test if fsync has a delay compared to non-fsync
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</li></ul>
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<h1><a name="section_14">Cache Usage</a></h1>
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<h1><a name="section_15">Cache Usage</a></h1>
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<ul>
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<li>Allow free-behind capability for large sequential scans, perhaps using
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@ -993,7 +991,7 @@ first.
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<p> <a href="http://archives.postgresql.org/pgsql-hackers/2005-10/msg01419.php">http://archives.postgresql.org/pgsql-hackers/2005-10/msg01419.php</a>
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</p>
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</li></ul>
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<h1><a name="section_15">Vacuum</a></h1>
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<h1><a name="section_16">Vacuum</a></h1>
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<ul>
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<li>Improve speed with indexes
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@ -1051,12 +1049,12 @@ first.
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</li><li>Turn on by default
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</li></ul>
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</li></ul>
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<h1><a name="section_16">Locking</a></h1>
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<h1><a name="section_17">Locking</a></h1>
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<ul>
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<li>Fix priority ordering of read and write light-weight locks (Neil)
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</li></ul>
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<h1><a name="section_17">Startup Time Improvements</a></h1>
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<h1><a name="section_18">Startup Time Improvements</a></h1>
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<ul>
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<li>Experiment with multi-threaded backend for backend creation [<a href="http://momjian.postgresql.org/cgi-bin/pgtodo?thread">thread</a>]
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@ -1079,7 +1077,7 @@ first.
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existing backends is one of the difficulties with a backend approach.
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</p>
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</li></ul>
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<h1><a name="section_18">Write-Ahead Log</a></h1>
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<h1><a name="section_19">Write-Ahead Log</a></h1>
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<ul>
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<li>Eliminate need to write full pages to WAL before page modification [<a href="http://momjian.postgresql.org/cgi-bin/pgtodo?wal">wal</a>]
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@ -1143,7 +1141,7 @@ first.
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of indexes on TOAST tables.
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</p>
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</li></ul>
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<h1><a name="section_19">Optimizer / Executor</a></h1>
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<h1><a name="section_20">Optimizer / Executor</a></h1>
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<ul>
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<li>Improve selectivity functions for geometric operators
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<p> This might replace GEQO, <a href="http://sixdemonbag.org/Djinni">http://sixdemonbag.org/Djinni</a>.
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</p>
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</li></ul>
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<h1><a name="section_20">Miscellaneous Performance</a></h1>
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<h1><a name="section_21">Miscellaneous Performance</a></h1>
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<ul>
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<li>Do async I/O for faster random read-ahead of data
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@ -1211,7 +1209,7 @@ first.
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</p>
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</li><li>Research storing disk pages with no alignment/padding
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</li></ul>
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<h1><a name="section_21">Source Code</a></h1>
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<h1><a name="section_22">Source Code</a></h1>
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<ul>
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<li>Add use of 'const' for variables in source tree
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@ -1293,7 +1291,7 @@ first.
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of result sets using new statement protocol
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</li></ul>
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</li></ul>
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<h1><a name="section_22">Features We Do _Not_ Want</a></h1>
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<h1><a name="section_23">Features We Do _Not_ Want</a></h1>
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<ul>
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<li>All backends running as threads in a single process (not wanted)
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@ -1314,7 +1312,7 @@ first.
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</li></ul>
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<hr/>
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<h2><a name="section_22_1">Developers who have claimed items are:</a></h2>
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<h2><a name="section_23_1">Developers who have claimed items are:</a></h2>
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<ul>
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<li>Alvaro is Alvaro Herrera <<a href="mailto:alvherre@dcc.uchile.cl">alvherre@dcc.uchile.cl</a>>
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</li><li>Andrew is Andrew Dunstan <<a href="mailto:andrew@dunslane.net">andrew@dunslane.net</a>>
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