Re: Named vs Unnamed Partitions
От | Markus Schiltknecht |
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Тема | Re: Named vs Unnamed Partitions |
Дата | |
Msg-id | 4784FE8A.603@bluegap.ch обсуждение исходный текст |
Ответ на | Re: Named vs Unnamed Partitions (Simon Riggs <simon@2ndquadrant.com>) |
Ответы |
Re: Named vs Unnamed Partitions
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Список | pgsql-hackers |
Hi, Simon Riggs wrote: > When I delete all rows WHERE some_date < 'cut-off date' on a segment > boundary value that would delete all segments that met the criteria. The > following VACUUM will then return those segments to be read-write, where > they can then be refilled with new incoming data. The only command we > would have to run is the DELETE, everything else is automatic. Agreed, that would be very nice. > So not convinced of the need for named sections of tables yet. It all > seems like detail, rather than actually what we want for managing large > tables. What do you think about letting the database system know the split point vs it having to find optimal split points automatically? Read-write vs. read-only is as good start, but can that concept be expanded to automatically choosing hash partitioning between storage systems, for example? Or more generally: can the database system gather enough information about the storage systems to take a decision as good as or better than the DBA? Regards Markus
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