"Stacy White" <[EMAIL PROTECTED]> writes: > FWIW, we see large benefits from partitioning other than the ability to > easily drop data, for example:
> - We can vacuum only the active portions of a table > - Postgres automatically keeps related records clustered together on disk, > which makes it more likely that the blocks used by common queries can be > found in cache > - The query engine uses full table scans on the relevant sections of data, > and quickly skips over the irrelevant sections > - 'CLUSTER'ing a single partition is likely to be significantly more > performant than clustering a large table Global indexes would seriously reduce the performance of both vacuum and cluster for a single partition, and if you want seq scans you don't need an index for that at all. So the above doesn't strike me as a strong argument for global indexes ... regards, tom lane ---------------------------(end of broadcast)--------------------------- TIP 3: if posting/reading through Usenet, please send an appropriate subscribe-nomail command to [EMAIL PROTECTED] so that your message can get through to the mailing list cleanly