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Re-order item.

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> * Auto-fill the free space map by scanning the buffer cache or by
>   checking pages written by the background writer
< * 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 19:20:27 +00:00
parent 524ec00d3e
commit 5495575903
2 changed files with 6 additions and 6 deletions
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6
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: Fri Jun 17 09:47:23 EDT 2005 Last updated: Fri Jun 17 15:20:21 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.
@ -800,6 +800,8 @@ Vacuum
This allows vacuum to target specific pages for possible free space This allows vacuum to target specific pages for possible free space
without requiring a sequential scan. without requiring a sequential scan.
* Auto-fill the free space map by scanning the buffer cache or by
checking pages written by the background writer
* Create a bitmap of pages that need vacuuming * Create a bitmap of pages that need vacuuming
Instead of sequentially scanning the entire table, have the background Instead of sequentially scanning the entire table, have the background
@ -807,8 +809,6 @@ 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 Use free-space map information to guide refilling o Use free-space map information to guide refilling

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doc/src/FAQ/TODO.html
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@ -8,7 +8,7 @@
<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: Fri Jun 17 09:47:23 EDT 2005 Last updated: Fri Jun 17 15:20:21 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>.
@ -736,14 +736,14 @@ first.
<p> This allows vacuum to target specific pages for possible free space <p> This allows vacuum to target specific pages for possible free space
without requiring a sequential scan. without requiring a sequential scan.
</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>Create a bitmap of pages that need vacuuming </li><li>Create a bitmap of pages that need vacuuming
<p> Instead of sequentially scanning the entire table, have the background <p> Instead of sequentially scanning the entire table, have the background
writer or some other process record pages that have expired rows, then writer or some other process record pages that have expired rows, then
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