Andrew Dunstan <[EMAIL PROTECTED]> writes:
> I'm still wondering if we can get away without a catalog change on that
> - e.g. could we look up an array type by looking for a pg_type entry
> containing the base type's oid in the typelem field? Or would that be
> too slow?
(a) too slow, (b) not unique.
regards, tom lane
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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
