| From: | Michael Monnerie <michael(dot)monnerie(at)is(dot)it-management(dot)at> |
|---|---|
| To: | pgsql-admin(at)postgresql(dot)org |
| Subject: | Re: Can't drop constraint? |
| Date: | 2009-05-06 05:45:56 |
| Message-ID: | 200905060745.56455@zmi.at |
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| Lists: | pgsql-admin |
On Dienstag 05 Mai 2009 Tom Lane wrote:
> Apparently this is just an index, not a constraint (the difference
> being that it was made with CREATE INDEX, not ALTER TABLE ADD
> CONSTRAINT). Try
Is there a performance difference? Or is it just a matter of taste which
one you use? Technically, are they both indices, or is the constraint a
check that's executed on insert/update, but doesn't store the values?
mfg zmi
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