diff options
| author | Bruce Momjian <bruce@momjian.us> | 2007-09-20 18:54:19 +0000 |
|---|---|---|
| committer | Bruce Momjian <bruce@momjian.us> | 2007-09-20 18:54:19 +0000 |
| commit | 754838caa3524121bc12f86fd16b53a3a0e8d472 (patch) | |
| tree | 54f16921de18f7bef47be8186c59f8066f4ad5be /doc/src | |
| parent | ad8fbb549a91db1f9a9dafc990573f5bcbfcfe40 (diff) | |
Done:
> * -Consider shrinking expired tuples to just their headers
> * -Allow heap reuse of UPDATEd rows if no indexed columns are changed,
> and old and new versions are on the same heap page
Not needed anymore:
< * Reuse index tuples that point to heap tuples that are not visible to
< anyone?
Diffstat (limited to 'doc/src')
| -rw-r--r-- | doc/src/FAQ/TODO.html | 21 |
1 files changed, 4 insertions, 17 deletions
diff --git a/doc/src/FAQ/TODO.html b/doc/src/FAQ/TODO.html index 932bc9f5369..2aec563e4c4 100644 --- a/doc/src/FAQ/TODO.html +++ b/doc/src/FAQ/TODO.html @@ -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: Fri Sep 14 15:02:41 EDT 2007 +Last updated: Thu Sep 20 14:53:32 EDT 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>. @@ -1075,22 +1075,9 @@ first. There is also a developer's wiki at<br/> in hopes that empty pages at the end can be truncated by VACUUM </li><li>Allow FSM page return free space based on table clustering, to assist in maintaining clustering? - </li><li>Consider shrinking expired tuples to just their headers -<p> <a href="http://archives.postgresql.org/pgsql-patches/2006-03/msg00142.php">http://archives.postgresql.org/pgsql-patches/2006-03/msg00142.php</a> - <a href="http://archives.postgresql.org/pgsql-hackers/2007-01/msg01025.php">http://archives.postgresql.org/pgsql-hackers/2007-01/msg01025.php</a> -</p> - </li><li>Allow heap reuse of UPDATEd rows if no indexed columns are changed, - and old and new versions are on the same heap page? -<p> While vacuum handles DELETEs fine, updating of non-indexed columns, like - counters, are difficult for VACUUM to handle efficiently. This method - is possible for same-page updates because a single index row can be - used to point to both old and new values. -</p> -<p> <a href="http://archives.postgresql.org/pgsql-hackers/2006-06/msg01305.php">http://archives.postgresql.org/pgsql-hackers/2006-06/msg01305.php</a> - <a href="http://archives.postgresql.org/pgsql-hackers/2006-06/msg01534.php">http://archives.postgresql.org/pgsql-hackers/2006-06/msg01534.php</a> -</p> - </li><li>Reuse index tuples that point to heap tuples that are not visible to - anyone? + </li><li>-<em>Consider shrinking expired tuples to just their headers</em> + </li><li>-<em>Allow heap reuse of UPDATEd rows if no indexed columns are changed,</em> + and old and new versions are on the same heap page </li><li>Improve dead row detection during multi-statement transactions usage <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> |