diff options
| author | Bruce Momjian <bruce@momjian.us> | 2006-06-24 23:45:02 +0000 |
|---|---|---|
| committer | Bruce Momjian <bruce@momjian.us> | 2006-06-24 23:45:02 +0000 |
| commit | fc6a2293b59e2c2e9d76bbc20df9bd194a9b00cd (patch) | |
| tree | e9e1ede57b2e6d95500cd2285f451fe36ed0d65c | |
| parent | 50aa69a82577da0f4dacdd26d0eafecad76218ca (diff) | |
| download | postgresql-fc6a2293b59e2c2e9d76bbc20df9bd194a9b00cd.tar.gz postgresql-fc6a2293b59e2c2e9d76bbc20df9bd194a9b00cd.zip | |
Add UPDATE entry for row reuse.
>
> * Allow heap reuse of UPDATEd rows if old and new versions are on the
> same heap page?
>
> This is possible for same-page updates because a single index row
> can point to both old and new values.
> http://archives.postgresql.org/pgsql-hackers/2006-06/msg01305.php
| -rw-r--r-- | doc/TODO | 9 | ||||
| -rw-r--r-- | doc/src/FAQ/TODO.html | 8 |
2 files changed, 15 insertions, 2 deletions
@@ -2,7 +2,7 @@ PostgreSQL TODO List ==================== Current maintainer: Bruce Momjian (bruce@momjian.us) -Last updated: Sun Jun 18 15:32:30 EDT 2006 +Last updated: Sat Jun 24 19:44:48 EDT 2006 The most recent version of this document can be viewed at http://www.postgresql.org/docs/faqs.TODO.html. @@ -1131,6 +1131,13 @@ Vacuum http://archives.postgresql.org/pgsql-patches/2006-03/msg00142.php +* Allow heap reuse of UPDATEd rows if old and new versions are on the + same heap page? + + This is possible for same-page updates because a single index row + can point to both old and new values. + http://archives.postgresql.org/pgsql-hackers/2006-06/msg01305.php + * Auto-vacuum o Use free-space map information to guide rfilling diff --git a/doc/src/FAQ/TODO.html b/doc/src/FAQ/TODO.html index 1d7feb5b553..78fb8077a73 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: Sun Jun 18 15:32:30 EDT 2006 +Last updated: Sat Jun 24 19:44:48 EDT 2006 </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>. @@ -1020,6 +1020,12 @@ first. </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> </p> + </li><li>Allow heap reuse of UPDATEd rows if old and new versions are on the + same heap page? +<p> This is possible for same-page updates because a single index row + can point to both old and new values. + <a href="http://archives.postgresql.org/pgsql-hackers/2006-06/msg01305.php">http://archives.postgresql.org/pgsql-hackers/2006-06/msg01305.php</a> +</p> </li><li>Auto-vacuum <ul> <li>Use free-space map information to guide rfilling |