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