File: bit.sql

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postgresql-18 18~beta3-1
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-- 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';