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Commit7740991

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> * Speed WAL recovery by allowing more than one page to be prefetched>> This involves having a separate process that can be told which pages> the recovery process will need in the near future.>http://archives.postgresql.org/pgsql-hackers/2008-02/msg01279.php>
1 parent37cb2b7 commit7740991

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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:Mon Mar 310:06:41 EST 2008
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Last updated:Mon Mar 313:45:12 EST 2008
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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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o Allow a warm standby system to also allow read-only statements
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[pitr]
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This is useful for checking PITR recovery.
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http://archives.postgresql.org/pgsql-hackers/2007-03/msg00050.php
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o %Create dump tool for write-ahead logs for use in determining
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transaction id for point-in-time recovery
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This is useful for checking PITR recovery.
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o Allow recovery.conf to support the same syntax as
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postgresql.conf, including quoting
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* Hash
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http://archives.postgresql.org/pgsql-hackers/2007-09/msg00051.php
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http://archives.postgresql.org/pgsql-hackers/2007-09/msg00051.php
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o Pack hash index buckets onto disk pages more efficiently
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tables probably cannot have indexes. One complexity is the handling
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of indexes on TOAST tables.
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* Speed WAL recovery by allowing more than one page to be prefetched
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This involves having a separate process that can be told which pages
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the recovery process will need in the near future.
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http://archives.postgresql.org/pgsql-hackers/2008-02/msg01279.php
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Optimizer / Executor
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====================

‎doc/src/FAQ/TODO.html‎

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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: Mon Mar 310:06:41 EST 2008
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Last updated: Mon Mar 313:45:12 EST 2008
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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>.
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<ul>
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<li>Allow a warm standby system to also allow read-only statements
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[<ahref="http://momjian.postgresql.org/cgi-bin/pgtodo?pitr">pitr</a>]
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<p> This is useful for checking PITR recovery.
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<ahref="http://archives.postgresql.org/pgsql-hackers/2007-03/msg00050.php">http://archives.postgresql.org/pgsql-hackers/2007-03/msg00050.php</a>
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<p><ahref="http://archives.postgresql.org/pgsql-hackers/2007-03/msg00050.php">http://archives.postgresql.org/pgsql-hackers/2007-03/msg00050.php</a>
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</p>
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</li><li>%Create dump tool for write-ahead logs for use in determining
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transaction id for point-in-time recovery
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<p> This is useful for checking PITR recovery.
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</p>
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</li><li>Allow recovery.conf to support the same syntax as
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postgresql.conf, including quoting
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<p><ahref="http://archives.postgresql.org/pgsql-hackers/2006-12/msg00497.php">http://archives.postgresql.org/pgsql-hackers/2006-12/msg00497.php</a>
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digital trees (see Aoki)
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</li></ul>
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</li><li>Hash
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<ahref="http://archives.postgresql.org/pgsql-hackers/2007-09/msg00051.php">http://archives.postgresql.org/pgsql-hackers/2007-09/msg00051.php</a>
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<ul>
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<li>Pack hash index buckets onto disk pages more efficiently
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</li></ul>
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<p><ahref="http://archives.postgresql.org/pgsql-hackers/2007-09/msg00051.php">http://archives.postgresql.org/pgsql-hackers/2007-09/msg00051.php</a>
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</p>
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<ul>
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<li>Pack hash index buckets onto disk pages more efficiently
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<p> Currently only one hash bucket can be stored on a page. Ideally
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several hash buckets could be stored on a single page and greater
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granularity used for the hash algorithm.
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</p>
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<p><ahref="http://archives.postgresql.org/pgsql-hackers/2004-06/msg00168.php">http://archives.postgresql.org/pgsql-hackers/2004-06/msg00168.php</a>
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</p>
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</li><li>Consider sorting hash buckets so entries can be found using a
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</li><li>Consider sorting hash buckets so entries can be found using a
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binary search, rather than a linear scan
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</li><li>In hash indexes, consider storing the hash value with or instead
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</li><li>In hash indexes, consider storing the hash value with or instead
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of the key itself
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</li><li>Add WAL logging for crash recovery
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</li><li>Allow multi-column hash indexes
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</li><li>During index creation, pre-sort the tuples to improve build speed
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</li><li>Add WAL logging for crash recovery
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</li><li>Allow multi-column hash indexes
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</li><li>During index creation, pre-sort the tuples to improve build speed
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<p><ahref="http://archives.postgresql.org/pgsql-hackers/2007-03/msg01199.php">http://archives.postgresql.org/pgsql-hackers/2007-03/msg01199.php</a>
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</p>
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</li></ul>
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</li></ul>
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<h1><aname="section_11">Fsync</a></h1>
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crash recovery. Readers can continue accessing the table. Such
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tables probably cannot have indexes. One complexity is the handling
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of indexes on TOAST tables.
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</p>
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</li><li>Speed WAL recovery by allowing more than one page to be prefetched
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<p> This involves having a separate process that can be told which pages
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the recovery process will need in the near future.
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<ahref="http://archives.postgresql.org/pgsql-hackers/2008-02/msg01279.php">http://archives.postgresql.org/pgsql-hackers/2008-02/msg01279.php</a>
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</p>
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</li></ul>
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<h1><aname="section_17">Optimizer / Executor</a></h1>

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