Bruce Momjian <bruce@xxxxxxxxxx> writes:
> We used to have the C defined MAKE_EXPIRED_TUPLES_VISIBLE that would
> make deleted rows visible, but it seems it was removed in this commit as
> part of a restructuring:
It was removed because it was utterly useless.
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
