1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37
|
-- int4 check
CREATE TABLE int4tmp (a int4);
\copy int4tmp from 'data/int2.data'
SET enable_seqscan=on;
SELECT count(*) FROM int4tmp WHERE a < 237;
SELECT count(*) FROM int4tmp WHERE a <= 237;
SELECT count(*) FROM int4tmp WHERE a = 237;
SELECT count(*) FROM int4tmp WHERE a >= 237;
SELECT count(*) FROM int4tmp WHERE a > 237;
SELECT a, a <-> '237' FROM int4tmp ORDER BY a <-> '237' LIMIT 3;
CREATE INDEX int4idx ON int4tmp USING gist ( a );
SET enable_seqscan=off;
SELECT count(*) FROM int4tmp WHERE a < 237::int4;
SELECT count(*) FROM int4tmp WHERE a <= 237::int4;
SELECT count(*) FROM int4tmp WHERE a = 237::int4;
SELECT count(*) FROM int4tmp WHERE a >= 237::int4;
SELECT count(*) FROM int4tmp WHERE a > 237::int4;
EXPLAIN (COSTS OFF)
SELECT a, a <-> '237' FROM int4tmp ORDER BY a <-> '237' LIMIT 3;
SELECT a, a <-> '237' FROM int4tmp ORDER BY a <-> '237' LIMIT 3;
|