On 4/20/05, Jim C. Nasby <[EMAIL PROTECTED]> wrote:
> You should re-run the function test using SQL as the function language
> instead of plpgsql. There might be some performance to be had there.

Yay!  You're right!  I wonder why have I forgotten about LANGUAGE SQL. :)
It's 30 seconds vs 5 seconds for CASE ... END insisde PLpgsql vs CASE...END
LANGUAGE SQL. :)  I.e. its almost the same as in-place entered SQL.


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TIP 9: the planner will ignore your desire to choose an index scan if your
      joining column's datatypes do not match

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