Jakub Ouhrabka <[EMAIL PROTECTED]> writes:
> What can I do to help to debug it?

Either poke into the code yourself, or submit a self-contained test case
(the query alone does not a test case make).  I can't offhand think of a
reason for 8.2.5 to be slower than 8.2.4 ...

                        regards, tom lane

---------------------------(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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