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Commit7de0a91

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Move "Exotic Features" to the bottom of TODO.
1 parent1e05359 commit7de0a91

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-69
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‎doc/TODO

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Original file line numberDiff line numberDiff line change
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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:Fri Sep 29 23:55:30 EDT 2006
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Last updated:Mon Oct 2 09:59:50 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.
@@ -849,36 +849,6 @@ Dependency Checking
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invalidate its own query plan.
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Exotic Features
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===============
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* Add pre-parsing phase that converts non-ISO syntax to supported
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syntax
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This could allow SQL written for other databases to run without
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modification.
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* Allow plug-in modules to emulate features from other databases
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* SQL*Net listener that makes PostgreSQL appear as an Oracle database
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to clients
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* Allow statements across databases or servers with transaction
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semantics
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This can be done using dblink and two-phase commit.
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* Add the features of packages
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o Make private objects accessible only to objects in the same schema
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o Allow current_schema.objname to access current schema objects
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o Add session variables
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o Allow nested schemas
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* Consider allowing control of upper/lower case folding of unquoted
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identifiers
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http://archives.postgresql.org/pgsql-hackers/2004-04/msg00818.php
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Indexes
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=======
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@@ -1364,6 +1334,37 @@ Source Code
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of result sets using new statement protocol
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Exotic Features
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===============
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* Add pre-parsing phase that converts non-ISO syntax to supported
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syntax
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This could allow SQL written for other databases to run without
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modification.
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* Allow plug-in modules to emulate features from other databases
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* SQL*Net listener that makes PostgreSQL appear as an Oracle database
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to clients
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* Allow statements across databases or servers with transaction
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semantics
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This can be done using dblink and two-phase commit.
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* Add the features of packages
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o Make private objects accessible only to objects in the same schema
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o Allow current_schema.objname to access current schema objects
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o Add session variables
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o Allow nested schemas
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* Consider allowing control of upper/lower case folding of unquoted
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identifiers
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http://archives.postgresql.org/pgsql-hackers/2004-04/msg00818.php
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Features We Do _Not_ Want
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=========================
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‎doc/src/FAQ/TODO.html

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@@ -8,7 +8,7 @@
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<bodybgcolor="#FFFFFF"text="#000000"link="#FF0000"vlink="#A00000"alink="#0000FF">
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<h1><aname="section_1">PostgreSQL TODO List</a></h1>
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<p>Current maintainer: Bruce Momjian (<ahref="mailto:bruce@momjian.us">bruce@momjian.us</a>)<br/>
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Last updated:Fri Sep 29 23:55:30 EDT 2006
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Last updated:Mon Oct 2 09:59:50 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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<ahref="http://www.postgresql.org/docs/faqs.TODO.html">http://www.postgresql.org/docs/faqs.TODO.html</a>.
@@ -769,34 +769,7 @@ <h1><a name="section_11">Dependency Checking</a></h1>
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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><aname="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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syntax
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<p> This could allow SQL written for other databases to run without
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modification.
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</p>
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</li><li>Allow plug-in modules to emulate features from other databases
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</li><li>SQL*Net listener that makes PostgreSQL appear as an Oracle database
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to clients
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</li><li>Allow statements across databases or servers with transaction
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semantics
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<p> This can be done using dblink and two-phase commit.
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</p>
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</li><li>Add the features of packages
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<ul>
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<li>Make private objects accessible only to objects in the same schema
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</li><li>Allow current_schema.objname to access current schema objects
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</li><li>Add session variables
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</li><li>Allow nested schemas
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</li></ul>
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</li><li>Consider allowing control of upper/lower case folding of unquoted
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identifiers
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<p><ahref="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><aname="section_13">Indexes</a></h1>
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<h1><aname="section_12">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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</li><li>Allow multi-column hash indexes
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</li></ul>
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</li></ul>
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<h1><aname="section_14">Fsync</a></h1>
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<h1><aname="section_13">Fsync</a></h1>
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<ul>
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<li>Improve commit_delay handling to reduce fsync()
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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><aname="section_15">Cache Usage</a></h1>
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<h1><aname="section_14">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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<p><ahref="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><aname="section_16">Vacuum</a></h1>
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<h1><aname="section_15">Vacuum</a></h1>
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<ul>
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<li>Improve speed with indexes
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</p>
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</li></ul>
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</li></ul>
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<h1><aname="section_17">Locking</a></h1>
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<h1><aname="section_16">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><aname="section_18">Startup Time Improvements</a></h1>
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<h1><aname="section_17">Startup Time Improvements</a></h1>
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<ul>
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<li>Experiment with multi-threaded backend for backend creation [<ahref="http://momjian.postgresql.org/cgi-bin/pgtodo?thread">thread</a>]
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existing backends is one of the difficulties with a backend approach.
1016989
</p>
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</li></ul>
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<h1><aname="section_19">Write-Ahead Log</a></h1>
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<h1><aname="section_18">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 [<ahref="http://momjian.postgresql.org/cgi-bin/pgtodo?wal">wal</a>]
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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><aname="section_20">Optimizer / Executor</a></h1>
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<h1><aname="section_19">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,<ahref="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><aname="section_21">Miscellaneous Performance</a></h1>
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<h1><aname="section_20">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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</li><li>Reduce the row header size?
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</li></ul>
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</li></ul>
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<h1><aname="section_22">Source Code</a></h1>
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<h1><aname="section_21">Source Code</a></h1>
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<ul>
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<li>Add use of 'const' for variables in source tree
@@ -1231,6 +1204,33 @@ <h1><a name="section_22">Source Code</a></h1>
12311204
of result sets using new statement protocol
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</li></ul>
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</li></ul>
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<h1><aname="section_22">Exotic Features</a></h1>
1208+
1209+
<ul>
1210+
<li>Add pre-parsing phase that converts non-ISO syntax to supported
1211+
syntax
1212+
<p> This could allow SQL written for other databases to run without
1213+
modification.
1214+
</p>
1215+
</li><li>Allow plug-in modules to emulate features from other databases
1216+
</li><li>SQL*Net listener that makes PostgreSQL appear as an Oracle database
1217+
to clients
1218+
</li><li>Allow statements across databases or servers with transaction
1219+
semantics
1220+
<p> This can be done using dblink and two-phase commit.
1221+
</p>
1222+
</li><li>Add the features of packages
1223+
<ul>
1224+
<li>Make private objects accessible only to objects in the same schema
1225+
</li><li>Allow current_schema.objname to access current schema objects
1226+
</li><li>Add session variables
1227+
</li><li>Allow nested schemas
1228+
</li></ul>
1229+
</li><li>Consider allowing control of upper/lower case folding of unquoted
1230+
identifiers
1231+
<p><ahref="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><aname="section_23">Features We Do _Not_ Want</a></h1>
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<ul>

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