Re: Declarative partitioning grammar
От | Markus Schiltknecht |
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Тема | Re: Declarative partitioning grammar |
Дата | |
Msg-id | 478CE679.2030701@bluegap.ch обсуждение исходный текст |
Ответ на | Re: Declarative partitioning grammar ("Zeugswetter Andreas ADI SD" <Andreas.Zeugswetter@s-itsolutions.at>) |
Ответы |
Re: Declarative partitioning grammar
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Список | pgsql-hackers |
Hi, (sorry for the previous one, if delivered, that went of too early...) Zeugswetter Andreas ADI SD wrote: > Yes, but the problem with the timestamp partitioned tables is, that the > window is sliding. Thus you would need two alter tables for each new > period. One that changes the constraint + one that creates the new > partition. So it seems natural to join the two concepts for such a > partitioning syntax. If you think in terms of split points, having to alter two partitions isn't true, you just add a split point. Of course, that also alters the "constraints" of the partitions, but I think we all agree that the system should maintain those constraints automatically, anyway. As such, they don't even have to be visible to the DBA. > Personally I find the automatic partition idea intriguing, where you > only have to choose an expression that equates to one value (value > group) per partition (and possibly a way to derive a partition name). IMO, better go right to a fully automated approach. Or why would you need partition names in such a case? Regards Markus
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