PostgreSQL TODO List
====================
-Last updated: Fri Sep 14 15:02:41 EDT 2007
+Last updated: Thu Sep 20 14:53:32 EDT 2007
The most recent version of this document can be viewed at
http://www.postgresql.org/docs/faqs.TODO.html.
in hopes that empty pages at the end can be truncated by VACUUM
* Allow FSM page return free space based on table clustering, to assist
in maintaining clustering?
-* Consider shrinking expired tuples to just their headers
-
- http://archives.postgresql.org/pgsql-patches/2006-03/msg00142.php
- http://archives.postgresql.org/pgsql-hackers/2007-01/msg01025.php
-
-* Allow heap reuse of UPDATEd rows if no indexed columns are changed,
- and old and new versions are on the same heap page?
-
- 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.
-
- http://archives.postgresql.org/pgsql-hackers/2006-06/msg01305.php
- http://archives.postgresql.org/pgsql-hackers/2006-06/msg01534.php
-
-* Reuse index tuples that point to heap tuples that are not visible to
- anyone?
+* -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
* Improve dead row detection during multi-statement transactions usage
http://archives.postgresql.org/pgsql-patches/2007-03/msg00358.php
-Last updated: Fri Sep 14 15:02:41 EDT 2007
+Last updated: Thu Sep 20 14:53:32 EDT 2007
The most recent version of this document can be viewed at
in hopes that empty pages at the end can be truncated by VACUUM
Allow FSM page return free space based on table clustering, to assist
in maintaining clustering?
-
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?
-
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.
-
-
-
Reuse index tuples that point to heap tuples that are not visible to
- anyone?
+
-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
Improve dead row detection during multi-statement transactions usage