https://github.com/postgres/postgres
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Tip revision: b6cf730e80e8571066c0ce76e76ce99b9144c149 authored by Tom Lane on 08 May 2023, 21:15:52 UTC
Stamp 14.8.
Tip revision: b6cf730
bit.sql
-- 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';
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