Re: Auto Partitioning
От | Joshua D. Drake |
---|---|
Тема | Re: Auto Partitioning |
Дата | |
Msg-id | 4613F809.2010607@commandprompt.com обсуждение исходный текст |
Ответ на | Re: Auto Partitioning ("Simon Riggs" <simon@2ndquadrant.com>) |
Ответы |
Re: Auto Partitioning
Re: Auto Partitioning |
Список | pgsql-hackers |
Simon Riggs wrote: > On Wed, 2007-04-04 at 20:55 +0200, Markus Schiltknecht wrote: > >> Questioning the other way around: do we need any sort of multi-table >> indexes at all, or isn't it enough to teach the planner and executor how >> to intelligently scan through (possibly) multiple indexes to get what is >> requested? > > No, I don't think we need multi-table indexes at all. If we don't have multi-table indexes how do we enforce a primary key against a partitioned set? What about non primary keys that are just UNIQUE? What about check constraints that aren't apart of the exclusion? Joshua D. Drake > > The planner already uses the Append node to put together multiple plans. > The great thing is it will put together IndexScans and SeqScans as > applicable. No need for multi-scans as a special node type. > -- === The PostgreSQL Company: Command Prompt, Inc. === Sales/Support: +1.503.667.4564 || 24x7/Emergency: +1.800.492.2240 Providing the most comprehensive PostgreSQL solutions since 1997 http://www.commandprompt.com/ Donate to the PostgreSQL Project: http://www.postgresql.org/about/donate PostgreSQL Replication: http://www.commandprompt.com/products/
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