Re: Identical Queries

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Stephan Szabo wrote:
I tried posting to the bugs, and they said this is a better question for here.
I have to queries. One runs in about 2 seconds. The other takes upwards
of 2 minutes. I have a temp table that is created with 2 columns. This
table is joined with the larger database of call detail records.
However, these 2 queries are handled very differently.

Even for a temporary table, you should run ANALYZE on it after you fill it but before you query or join to it.  I found out (the hard way) that a temporary table of just 100 rows will generate dramatically different plans before and after ANALYZE.

Craig



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