Jim C. Nasby kirjutas R, 25.04.2003 kell 19:56:
> I'm not familiar enough with pgsql's guts to know how big an impact
> updates across pages are, or if they even happen often at all. If you're
> not maintaining a clustered table, couldn't all updates just occur
> in-place?
In postgres _no_ updates happen in-place. The MVCC concurrency works by
always inserting a new tuple on update .
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Hannu
