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< * Prevent long-lived temporary tables from causing frozen-Xid advancement
> * Prevent long-lived temporary tables from causing frozen-xid advancement
>
>    The problem is that autovacuum cannot vacuum them to set frozen xids;
>    only the session that created them can do that.
>
>
>
This commit is contained in:
Bruce Momjian 2007-11-23 16:37:55 +00:00
parent 558c9270c4
commit ba2b2a2c4e
2 changed files with 16 additions and 5 deletions
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10
doc/TODO
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@ -1,7 +1,7 @@
PostgreSQL TODO List
====================
Current maintainer: Bruce Momjian (bruce@momjian.us)
Last updated: Mon Nov 19 19:18:31 EST 2007
Last updated: Fri Nov 23 11:37:47 EST 2007
The most recent version of this document can be viewed at
http://www.postgresql.org/docs/faqs.TODO.html.
@ -1231,8 +1231,14 @@ Vacuum
http://archives.postgresql.org/pgsql-patches/2007-03/msg00358.php
* -Reduce XID consumption of read-only queries
* Prevent long-lived temporary tables from causing frozen-Xid advancement
* Prevent long-lived temporary tables from causing frozen-xid advancement
starvation
The problem is that autovacuum cannot vacuum them to set frozen xids;
only the session that created them can do that.
* Auto-vacuum
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">
<h1><a name="section_1">PostgreSQL TODO List</a></h1>
<p>Current maintainer: Bruce Momjian (<a href="mailto:bruce@momjian.us">bruce@momjian.us</a>)<br/>
Last updated: Mon Nov 19 19:18:31 EST 2007
Last updated: Fri Nov 23 11:37:47 EST 2007
</p>
<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>.
@ -1096,9 +1096,14 @@ first. There is also a developer's wiki at<br/>
<p> <a href="http://archives.postgresql.org/pgsql-patches/2007-03/msg00358.php">http://archives.postgresql.org/pgsql-patches/2007-03/msg00358.php</a>
</p>
</li><li>-<em>Reduce XID consumption of read-only queries</em>
</li><li>Prevent long-lived temporary tables from causing frozen-Xid advancement
</li><li>Prevent long-lived temporary tables from causing frozen-xid advancement
starvation
</li><li>Auto-vacuum
</li></ul>
<p> The problem is that autovacuum cannot vacuum them to set frozen xids;<br/>
only the session that created them can do that.
</p>
<ul>
<li>Auto-vacuum
<ul>
<li>Use free-space map information to guide refilling
</li><li>%Issue log message to suggest VACUUM FULL if a table is nearly