contrib/btree_gist/sql/varbit.sql


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-- varbit check

CREATE TABLE varbittmp (a varbit);

\copy varbittmp from 'data/varbit.data'

SET enable_seqscan=on;

SELECT count(*) FROM varbittmp WHERE a <   '1110100111010';

SELECT count(*) FROM varbittmp WHERE a <=  '1110100111010';

SELECT count(*) FROM varbittmp WHERE a  =  '1110100111010';

SELECT count(*) FROM varbittmp WHERE a >=  '1110100111010';

SELECT count(*) FROM varbittmp WHERE a >   '1110100111010';

SET client_min_messages = DEBUG1;
CREATE INDEX varbitidx ON varbittmp USING GIST ( a );
CREATE INDEX varbitidx_b ON varbittmp USING GIST ( a ) WITH (buffering=on);
DROP INDEX varbitidx_b;
RESET client_min_messages;

SET enable_seqscan=off;

SELECT count(*) FROM varbittmp WHERE a <   '1110100111010'::varbit;

SELECT count(*) FROM varbittmp WHERE a <=  '1110100111010'::varbit;

SELECT count(*) FROM varbittmp WHERE a  =  '1110100111010'::varbit;

SELECT count(*) FROM varbittmp WHERE a >=  '1110100111010'::varbit;

SELECT count(*) FROM varbittmp WHERE a >   '1110100111010'::varbit;

-- Test index-only scans
SET enable_bitmapscan=off;
EXPLAIN (COSTS OFF)
SELECT a FROM bittmp WHERE a BETWEEN '1000000' and '1000001';