postgresql/contrib/btree_gist/sql/int8.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
1.1 KiB
SQL

-- int8 check
CREATE TABLE int8tmp (a int8);
\copy int8tmp from 'data/int8.data'
SET enable_seqscan=on;
SELECT count(*) FROM int8tmp WHERE a < 464571291354841;
SELECT count(*) FROM int8tmp WHERE a <= 464571291354841;
SELECT count(*) FROM int8tmp WHERE a = 464571291354841;
SELECT count(*) FROM int8tmp WHERE a >= 464571291354841;
SELECT count(*) FROM int8tmp WHERE a > 464571291354841;
SELECT a, a <-> '464571291354841' FROM int8tmp ORDER BY a <-> '464571291354841' LIMIT 3;
CREATE INDEX int8idx ON int8tmp USING gist ( a );
SET enable_seqscan=off;
SELECT count(*) FROM int8tmp WHERE a < 464571291354841::int8;
SELECT count(*) FROM int8tmp WHERE a <= 464571291354841::int8;
SELECT count(*) FROM int8tmp WHERE a = 464571291354841::int8;
SELECT count(*) FROM int8tmp WHERE a >= 464571291354841::int8;
SELECT count(*) FROM int8tmp WHERE a > 464571291354841::int8;
EXPLAIN (COSTS OFF)
SELECT a, a <-> '464571291354841' FROM int8tmp ORDER BY a <-> '464571291354841' LIMIT 3;
SELECT a, a <-> '464571291354841' FROM int8tmp ORDER BY a <-> '464571291354841' LIMIT 3;