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Add index-only scan support to btree_gist.
inet, cidr, and timetz indexes still cannot support index-only scans, because they don't store the original unmodified value in the index, but a derived approximate value.
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@ -77,7 +77,7 @@ SELECT a, a <-> '2004-10-26 08:55:08' FROM timestamptmp ORDER BY a <-> '2004-10-
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QUERY PLAN
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-----------------------------------------------------------------------------------
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Limit
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-> Index Scan using timestampidx on timestamptmp
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-> Index Only Scan using timestampidx on timestamptmp
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Order By: (a <-> 'Tue Oct 26 08:55:08 2004'::timestamp without time zone)
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(3 rows)
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