"Gurpreet Aulakh" <[EMAIL PROTECTED]> writes:
> What is really interesting is the time it takes for the Hash to occur. For
> the first hash, on the 7.3 it takes only 12ms while on the 8.0 it takes
> 47ms.
You haven't told us a thing about the column datatypes involved (much
less what the query actually is) ... but I wonder if this is a textual
datatype and the 8.0 installation is using a non-C locale where the 7.3
installation is using C locale. That could account for a considerable
slowdown in text comparison speeds.
regards, tom lane
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