Luke Lonergan wrote: > Adam, > > This optimization would require teaching the planner to use an index for > MAX/MIN when available. It seems like an OK thing to do to me.
This optimization already exists, albeit for queries that use a single table. -- Alvaro Herrera http://www.CommandPrompt.com/ PostgreSQL Replication, Consulting, Custom Development, 24x7 support ---------------------------(end of broadcast)--------------------------- TIP 5: don't forget to increase your free space map settings
