Neil Conway wrote:
Per earlier discussion on pgsql-hackers[1], this patch changes the
implementation of hash join to attempt to avoid redundant work if either
of the join relations are empty.
Applied.
-Neil
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TIP 6: Have
Per earlier discussion on pgsql-hackers[1], this patch changes the
implementation of hash join to attempt to avoid redundant work if either
of the join relations are empty. The logic is:
(1) if the inner relation's startup cost is less than the outer
relation's startup cost and this is not an
