Simon Riggs wrote:
I thought you removed that in February? Or is my memory playing tricks?
Not I -- Tom removed src/backend/storage/smgr/mm.c in February of '04, but evidently forgot to remove the associated LWLock.
-Neil
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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
