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Add "AS" item:
< * All backends running as threads in a single process (not want) > * All backends running as threads in a single process (not wanted) < * Optimizer hints (not want) > * Optimizer hints (not wanted) > > * Allow AS in "SELECT col AS label" to be optional (not wanted) > > Because we support postfix operators, it isn't possible to make AS > optional and continue to use bison. > http://archives.postgresql.org/pgsql-sql/2006-08/msg00164.php
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doc/TODO

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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: Tue Aug 22 22:48:03 EDT 2006
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Last updated: Wed Aug 23 14:31:52 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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Features We Do _Not_ Want
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=========================
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* All backends running as threads in a single process (not want)
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* All backends running as threads in a single process (not wanted)
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This eliminates the process protection we get from the current setup.
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Thread creation is usually the same overhead as process creation on
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modern systems, so it seems unwise to use a pure threaded model.
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* Optimizer hints (not want)
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* Optimizer hints (not wanted)
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Optimizer hints are used to work around problems in the optimizer. We
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would rather have the problems reported and fixed.
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http://archives.postgresql.org/pgsql-hackers/2006-08/msg00506.php
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* Allow AS in "SELECT col AS label" to be optional (not wanted)
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Because we support postfix operators, it isn't possible to make AS
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optional and continue to use bison.
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http://archives.postgresql.org/pgsql-sql/2006-08/msg00164.php
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---------------------------------------------------------------------------
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doc/src/FAQ/TODO.html

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<body bgcolor="#FFFFFF" text="#000000" link="#FF0000" vlink="#A00000" alink="#0000FF">
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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: Tue Aug 22 22:48:03 EDT 2006
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Last updated: Wed Aug 23 14:31:52 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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<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 want)
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<li>All backends running as threads in a single process (not wanted)
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<p> This eliminates the process protection we get from the current setup.
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Thread creation is usually the same overhead as process creation on
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modern systems, so it seems unwise to use a pure threaded model.
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</p>
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</li><li>Optimizer hints (not want)
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</li><li>Optimizer hints (not wanted)
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<p> Optimizer hints are used to work around problems in the optimizer. We
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would rather have the problems reported and fixed.
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<a href="http://archives.postgresql.org/pgsql-hackers/2006-08/msg00506.php">http://archives.postgresql.org/pgsql-hackers/2006-08/msg00506.php</a>
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</p>
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</li><li>Allow AS in "SELECT col AS label" to be optional (not wanted)
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<p> Because we support postfix operators, it isn't possible to make AS
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optional and continue to use bison.
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<a href="http://archives.postgresql.org/pgsql-sql/2006-08/msg00164.php">http://archives.postgresql.org/pgsql-sql/2006-08/msg00164.php</a>
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</p>
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</li></ul>
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<hr/>

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