postgresql/contrib/btree_gist/sql/bit.sql

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2023-05-09 21:11:15 +00:00
-- 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';
SELECT count(*) FROM bittmp WHERE a <= '011011000100010111011000110000100';
SELECT count(*) FROM bittmp WHERE a = '011011000100010111011000110000100';
SELECT count(*) FROM bittmp WHERE a >= '011011000100010111011000110000100';
SELECT count(*) FROM bittmp WHERE a > '011011000100010111011000110000100';
CREATE INDEX bitidx ON bittmp USING GIST ( a );
SET enable_seqscan=off;
SELECT count(*) FROM bittmp WHERE a < '011011000100010111011000110000100';
SELECT count(*) FROM bittmp WHERE a <= '011011000100010111011000110000100';
SELECT count(*) FROM bittmp WHERE a = '011011000100010111011000110000100';
SELECT count(*) FROM bittmp WHERE a >= '011011000100010111011000110000100';
SELECT count(*) FROM bittmp WHERE a > '011011000100010111011000110000100';
-- Test index-only scans
SET enable_bitmapscan=off;
EXPLAIN (COSTS OFF)
SELECT a FROM bittmp WHERE a BETWEEN '1000000' and '1000001';