On 06/25/2013 11:52 PM, Kevin Grittner wrote: > At least until we have parallel > query execution. At *that* point this all changes.
Can you elaborate on that, please? I currently have a hard time imagining how partitions can help performance in that case, either. At least compared to modern RAID and read-ahead capabilities. After all, RAID can be thought of as hash partitioning with a very weird hash function. Or maybe rather range partitioning on an internal key. Put another way: ideally, the system should take care of optimally distributing data across its physical storage itself. If you need to do partitioning manually for performance reasons, that's actually a deficiency of it, not a feature. I certainly agree that manageability may be a perfectly valid reason to partition your data. Maybe there even exist other good reasons. I don't think performance optimization is one. (It's more like giving the system a hint. And we all dislike hints, don't we? *ducks*) Regards Markus Wanner -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
