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List:       pgsql-performance
Subject:    Re: [pgsql-advocacy] [PERFORM] 8.2 -> 8.3 performance numbers
From:       Mario Weilguni <mweilguni () sime ! com>
Date:       2007-07-25 13:07:23
Message-ID: 200707251507.23951.mweilguni () sime ! com
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Am Mittwoch 25 Juli 2007 schrieb Simon Riggs:
> I have reasonable evidence that Referential Integrity is the major
> performance bottleneck and would like some objective evidence that this
> is the case.

Just curious, will 8.3 still check FK constraints (and use locks) even if the 
referencing column value does not change?

---------------------------(end of broadcast)---------------------------
TIP 9: In versions below 8.0, the planner will ignore your desire to
       choose an index scan if your joining column's datatypes do not
       match
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