4 Commits

Author	SHA1	Message	Date
Tom Lane	8a859691d5	Properly initialize SortSupport for ORDER BY rechecks in nodeIndexscan.c. ... Fix still another bug in commit 35fcb1b3d: it failed to fully initialize the SortSupport states it introduced to allow the executor to re-check ORDER BY expressions containing distance operators. That led to a null pointer dereference if the sortsupport code tried to use ssup_cxt. The problem only manifests in narrow cases, explaining the lack of previous field reports. It requires a GiST-indexable distance operator that lacks SortSupport and is on a pass-by-ref data type, which among core+contrib seems to be only btree_gist's interval opclass; and it requires the scan to be done as an IndexScan not an IndexOnlyScan, which explains how btree_gist's regression test didn't catch it. Per bug #14134 from Jihyun Yu. Peter Geoghegan Report: <20160511154904.2603.43889@wrigleys.postgresql.org>	2016-06-05 11:53:06 -04:00
Heikki Linnakangas	e09b48316c	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.	2015-03-27 23:35:16 +02:00
Tom Lane	8436489c81	Add KNNGIST support to contrib/btree_gist. ... This extends GiST's support for nearest-neighbor searches to many of the standard data types. Teodor Sigaev	2011-03-02 14:44:33 -05:00
Teodor Sigaev	42d069886f	New version. Add support for int2, int8, float4, float8, timestamp with/without time zone, time with/without time zone, date, interval, oid, money and macaddr, char, varchar/text, bytea, numeric, bit, varbit, inet/cidr types for GiST	2004-05-28 10:43:32 +00:00