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* Auto-fill the free space map by scanning the buffer cache or by
  checking pages written by the background writer
This commit is contained in:
Bruce Momjian 2005-06-17 13:47:24 +00:00
parent 30b0f49ce6
commit 524ec00d3e
2 changed files with 6 additions and 4 deletions
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doc/TODO
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@ -2,7 +2,7 @@
PostgreSQL TODO List PostgreSQL TODO List
==================== ====================
Current maintainer: Bruce Momjian (pgman@candle.pha.pa.us) Current maintainer: Bruce Momjian (pgman@candle.pha.pa.us)
Last updated: Thu Jun 16 22:20:43 EDT 2005 Last updated: Fri Jun 17 09:47:23 EDT 2005
The most recent version of this document can be viewed at The most recent version of this document can be viewed at
http://www.postgresql.org/docs/faqs.TODO.html. http://www.postgresql.org/docs/faqs.TODO.html.
@ -807,9 +807,10 @@ Vacuum
VACUUM can look at just those pages rather than the entire table. In VACUUM can look at just those pages rather than the entire table. In
the event of a system crash, the bitmap would probably be invalidated. the event of a system crash, the bitmap would probably be invalidated.
* Auto-fill the free space map by scanning the buffer cache or by
checking pages written by the background writer
* Auto-vacuum * Auto-vacuum
o Move into the backend code o Move into the backend code
o Scan the buffer cache to find free space or use background writer
o Use free-space map information to guide refilling o Use free-space map information to guide refilling
o Do VACUUM FULL if table is nearly empty? o Do VACUUM FULL if table is nearly empty?

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doc/src/FAQ/TODO.html
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<body bgcolor="#FFFFFF" text="#000000" link="#FF0000" vlink="#A00000" alink="#0000FF"> <body bgcolor="#FFFFFF" text="#000000" link="#FF0000" vlink="#A00000" alink="#0000FF">
<h1><a name="section_1">PostgreSQL TODO List</a></h1> <h1><a name="section_1">PostgreSQL TODO List</a></h1>
<p>Current maintainer: Bruce Momjian (<a href="mailto:pgman@candle.pha.pa.us">pgman@candle.pha.pa.us</a>)<br/> <p>Current maintainer: Bruce Momjian (<a href="mailto:pgman@candle.pha.pa.us">pgman@candle.pha.pa.us</a>)<br/>
Last updated: Thu Jun 16 22:20:43 EDT 2005 Last updated: Fri Jun 17 09:47:23 EDT 2005
</p> </p>
<p>The most recent version of this document can be viewed at<br/> <p>The most recent version of this document can be viewed at<br/>
<a href="http://www.postgresql.org/docs/faqs.TODO.html">http://www.postgresql.org/docs/faqs.TODO.html</a>. <a href="http://www.postgresql.org/docs/faqs.TODO.html">http://www.postgresql.org/docs/faqs.TODO.html</a>.
@ -742,10 +742,11 @@ first.
VACUUM can look at just those pages rather than the entire table. In VACUUM can look at just those pages rather than the entire table. In
the event of a system crash, the bitmap would probably be invalidated. the event of a system crash, the bitmap would probably be invalidated.
</p> </p>
</li><li>Auto-fill the free space map by scanning the buffer cache or by
checking pages written by the background writer
</li><li>Auto-vacuum </li><li>Auto-vacuum
<ul> <ul>
<li>Move into the backend code <li>Move into the backend code
</li><li>Scan the buffer cache to find free space or use background writer
</li><li>Use free-space map information to guide refilling </li><li>Use free-space map information to guide refilling
</li><li>Do VACUUM FULL if table is nearly empty? </li><li>Do VACUUM FULL if table is nearly empty?
</li></ul> </li></ul>