postgresql/contrib/btree_gist/sql/interval.sql
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

38 lines
1.2 KiB
SQL

-- interval check
CREATE TABLE intervaltmp (a interval);
\copy intervaltmp from 'data/interval.data'
SET enable_seqscan=on;
SELECT count(*) FROM intervaltmp WHERE a < '199 days 21:21:23';
SELECT count(*) FROM intervaltmp WHERE a <= '199 days 21:21:23';
SELECT count(*) FROM intervaltmp WHERE a = '199 days 21:21:23';
SELECT count(*) FROM intervaltmp WHERE a >= '199 days 21:21:23';
SELECT count(*) FROM intervaltmp WHERE a > '199 days 21:21:23';
SELECT a, a <-> '199 days 21:21:23' FROM intervaltmp ORDER BY a <-> '199 days 21:21:23' LIMIT 3;
CREATE INDEX intervalidx ON intervaltmp USING gist ( a );
SET enable_seqscan=off;
SELECT count(*) FROM intervaltmp WHERE a < '199 days 21:21:23'::interval;
SELECT count(*) FROM intervaltmp WHERE a <= '199 days 21:21:23'::interval;
SELECT count(*) FROM intervaltmp WHERE a = '199 days 21:21:23'::interval;
SELECT count(*) FROM intervaltmp WHERE a >= '199 days 21:21:23'::interval;
SELECT count(*) FROM intervaltmp WHERE a > '199 days 21:21:23'::interval;
EXPLAIN (COSTS OFF)
SELECT a, a <-> '199 days 21:21:23' FROM intervaltmp ORDER BY a <-> '199 days 21:21:23' LIMIT 3;
SELECT a, a <-> '199 days 21:21:23' FROM intervaltmp ORDER BY a <-> '199 days 21:21:23' LIMIT 3;