postgresql/contrib/btree_gist/sql/bit.sql
Heikki Linnakangas e09b48316c Add index-only scan support to btree_gist.
inet, cidr, and timetz indexes still cannot support index-only scans,
because they don't store the original unmodified value in the index, but a
derived approximate value.
2015-03-27 23:35:16 +02:00

37 lines
1.1 KiB
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';