postgresql/contrib/btree_gist/sql/timestamptz.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

81 lines
3.0 KiB
SQL

-- timestamptz check
CREATE TABLE timestamptztmp (a timestamptz);
\copy timestamptztmp from 'data/timestamptz.data'
SET enable_seqscan=on;
SELECT count(*) FROM timestamptztmp WHERE a < '2018-12-18 10:59:54 GMT+3';
SELECT count(*) FROM timestamptztmp WHERE a <= '2018-12-18 10:59:54 GMT+3';
SELECT count(*) FROM timestamptztmp WHERE a = '2018-12-18 10:59:54 GMT+3';
SELECT count(*) FROM timestamptztmp WHERE a >= '2018-12-18 10:59:54 GMT+3';
SELECT count(*) FROM timestamptztmp WHERE a > '2018-12-18 10:59:54 GMT+3';
SELECT count(*) FROM timestamptztmp WHERE a < '2018-12-18 10:59:54 GMT+2';
SELECT count(*) FROM timestamptztmp WHERE a <= '2018-12-18 10:59:54 GMT+2';
SELECT count(*) FROM timestamptztmp WHERE a = '2018-12-18 10:59:54 GMT+2';
SELECT count(*) FROM timestamptztmp WHERE a >= '2018-12-18 10:59:54 GMT+2';
SELECT count(*) FROM timestamptztmp WHERE a > '2018-12-18 10:59:54 GMT+2';
SELECT count(*) FROM timestamptztmp WHERE a < '2018-12-18 10:59:54 GMT+4';
SELECT count(*) FROM timestamptztmp WHERE a <= '2018-12-18 10:59:54 GMT+4';
SELECT count(*) FROM timestamptztmp WHERE a = '2018-12-18 10:59:54 GMT+4';
SELECT count(*) FROM timestamptztmp WHERE a >= '2018-12-18 10:59:54 GMT+4';
SELECT count(*) FROM timestamptztmp WHERE a > '2018-12-18 10:59:54 GMT+4';
SELECT a, a <-> '2018-12-18 10:59:54 GMT+2' FROM timestamptztmp ORDER BY a <-> '2018-12-18 10:59:54 GMT+2' LIMIT 3;
CREATE INDEX timestamptzidx ON timestamptztmp USING gist ( a );
SET enable_seqscan=off;
SELECT count(*) FROM timestamptztmp WHERE a < '2018-12-18 10:59:54 GMT+3'::timestamptz;
SELECT count(*) FROM timestamptztmp WHERE a <= '2018-12-18 10:59:54 GMT+3'::timestamptz;
SELECT count(*) FROM timestamptztmp WHERE a = '2018-12-18 10:59:54 GMT+3'::timestamptz;
SELECT count(*) FROM timestamptztmp WHERE a >= '2018-12-18 10:59:54 GMT+3'::timestamptz;
SELECT count(*) FROM timestamptztmp WHERE a > '2018-12-18 10:59:54 GMT+3'::timestamptz;
SELECT count(*) FROM timestamptztmp WHERE a < '2018-12-18 10:59:54 GMT+2'::timestamptz;
SELECT count(*) FROM timestamptztmp WHERE a <= '2018-12-18 10:59:54 GMT+2'::timestamptz;
SELECT count(*) FROM timestamptztmp WHERE a = '2018-12-18 10:59:54 GMT+2'::timestamptz;
SELECT count(*) FROM timestamptztmp WHERE a >= '2018-12-18 10:59:54 GMT+2'::timestamptz;
SELECT count(*) FROM timestamptztmp WHERE a > '2018-12-18 10:59:54 GMT+2'::timestamptz;
SELECT count(*) FROM timestamptztmp WHERE a < '2018-12-18 10:59:54 GMT+4'::timestamptz;
SELECT count(*) FROM timestamptztmp WHERE a <= '2018-12-18 10:59:54 GMT+4'::timestamptz;
SELECT count(*) FROM timestamptztmp WHERE a = '2018-12-18 10:59:54 GMT+4'::timestamptz;
SELECT count(*) FROM timestamptztmp WHERE a >= '2018-12-18 10:59:54 GMT+4'::timestamptz;
SELECT count(*) FROM timestamptztmp WHERE a > '2018-12-18 10:59:54 GMT+4'::timestamptz;
EXPLAIN (COSTS OFF)
SELECT a, a <-> '2018-12-18 10:59:54 GMT+2' FROM timestamptztmp ORDER BY a <-> '2018-12-18 10:59:54 GMT+2' LIMIT 3;
SELECT a, a <-> '2018-12-18 10:59:54 GMT+2' FROM timestamptztmp ORDER BY a <-> '2018-12-18 10:59:54 GMT+2' LIMIT 3;