he3pg/contrib/btree_gist/expected/bit.out

77 lines
1.6 KiB
Plaintext
Raw Normal View History

2022-08-31 15:03:14 +08:00
-- bit check
CREATE TABLE bittmp (a bit(33));
\copy bittmp from 'data/bit.data'
SET enable_seqscan=on;
SELECT count(*) FROM bittmp WHERE a < '011011000100010111011000110000100';
count
-------
249
(1 row)
SELECT count(*) FROM bittmp WHERE a <= '011011000100010111011000110000100';
count
-------
250
(1 row)
SELECT count(*) FROM bittmp WHERE a = '011011000100010111011000110000100';
count
-------
1
(1 row)
SELECT count(*) FROM bittmp WHERE a >= '011011000100010111011000110000100';
count
-------
351
(1 row)
SELECT count(*) FROM bittmp WHERE a > '011011000100010111011000110000100';
count
-------
350
(1 row)
CREATE INDEX bitidx ON bittmp USING GIST ( a );
SET enable_seqscan=off;
SELECT count(*) FROM bittmp WHERE a < '011011000100010111011000110000100';
count
-------
249
(1 row)
SELECT count(*) FROM bittmp WHERE a <= '011011000100010111011000110000100';
count
-------
250
(1 row)
SELECT count(*) FROM bittmp WHERE a = '011011000100010111011000110000100';
count
-------
1
(1 row)
SELECT count(*) FROM bittmp WHERE a >= '011011000100010111011000110000100';
count
-------
351
(1 row)
SELECT count(*) FROM bittmp WHERE a > '011011000100010111011000110000100';
count
-------
350
(1 row)
-- Test index-only scans
SET enable_bitmapscan=off;
EXPLAIN (COSTS OFF)
SELECT a FROM bittmp WHERE a BETWEEN '1000000' and '1000001';
QUERY PLAN
---------------------------------------------------------------------
Index Only Scan using bitidx on bittmp
Index Cond: ((a >= '1000000'::"bit") AND (a <= '1000001'::"bit"))
(2 rows)