TODO items for removal

These two items are complete in 8.2, IIRC

Allow constraint_exclusion to work for UNIONs like it does for
inheritance, allow it to work for UPDATE and DELETE statements, and
allow it to be used for all statements with little performance impact

Fix memory leak from exceptions 
http://archives.postgresql.org/pgsql-performance/2006-06/msg00305.php


This item was rejected by Tom, since a workaround exists

Add estimated_count(*) to return an estimate of COUNT(*) 
This would use the planner ANALYZE statistics to return an estimated
count. http://archives.postgresql.org/pgsql-hackers/2005-11/msg00943.php

--  Simon Riggs              EnterpriseDB   http://www.enterprisedb.com