postgresql/contrib/btree_gist/expected/varbit.out
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

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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';
count
-------
549
(1 row)
SELECT count(*) FROM varbittmp WHERE a <= '1110100111010';
count
-------
550
(1 row)
SELECT count(*) FROM varbittmp WHERE a = '1110100111010';
count
-------
1
(1 row)
SELECT count(*) FROM varbittmp WHERE a >= '1110100111010';
count
-------
51
(1 row)
SELECT count(*) FROM varbittmp WHERE a > '1110100111010';
count
-------
50
(1 row)
CREATE INDEX varbitidx ON varbittmp USING GIST ( a );
SET enable_seqscan=off;
SELECT count(*) FROM varbittmp WHERE a < '1110100111010'::varbit;
count
-------
549
(1 row)
SELECT count(*) FROM varbittmp WHERE a <= '1110100111010'::varbit;
count
-------
550
(1 row)
SELECT count(*) FROM varbittmp WHERE a = '1110100111010'::varbit;
count
-------
1
(1 row)
SELECT count(*) FROM varbittmp WHERE a >= '1110100111010'::varbit;
count
-------
51
(1 row)
SELECT count(*) FROM varbittmp WHERE a > '1110100111010'::varbit;
count
-------
50
(1 row)
-- Test index-only scans
SET enable_bitmapscan=off;
EXPLAIN (COSTS OFF)
SELECT a FROM bittmp WHERE a BETWEEN '1000000' and '1000001';
QUERY PLAN
-----------------------------------------------------------------------
Index Only Scan using bitidx on bittmp
Index Cond: ((a >= B'1000000'::"bit") AND (a <= B'1000001'::"bit"))
(2 rows)