Thread: pgsql: Fix knn-GiST queue comparison function to return heap tuples fir

Fix knn-GiST queue comparison function to return heap tuples first.

The part of the comparison function that was supposed to keep heap tuples
ahead of index items was backwards. It would not lead to incorrect results,
but it is more efficient to return heap tuples first, before scanning more
index pages, when both have the same distance.

Alexander Korotkov

Branch
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master

Details
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http://git.postgresql.org/pg/commitdiff/d17b6df239e6eebf288969e931cdbe8076d1fe12

Modified Files
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src/backend/access/gist/gistscan.c |    4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)