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2 check-ins related to "distinct-early-out"

2017-11-21
23:47
An experimental optimization to DISTINCT that causes an immediate exit of the inner loop of a join following each output row if the inner loop does not contribute any columns to the result set. (Leaf check-in: a33f88acd7 user: drh tags: distinct-early-out)
23:38
Fix the skip-ahead-distinct optimization on joins for cases there the table in the inner loop of the join does not contribute any columns to the result set. Proposed fix for ticket [ef9318757b152e3a2] (check-in: 2dcef5a9ae user: drh tags: trunk)