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postgres
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Tag: Branch: Tree: 325bc54eed
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postgres/contrib/btree_gin/sql/bpchar.sql

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set enable_seqscan=off;
CREATE TABLE test_bpchar (
i char(10)
);
INSERT INTO test_bpchar VALUES ('a'),('ab'),('abc'),('abc '),('abb'),('axy'),('xyz'),('xyz ');
CREATE INDEX idx_bpchar ON test_bpchar USING gin (i);
SELECT * FROM test_bpchar WHERE i<'abc' ORDER BY i;
SELECT * FROM test_bpchar WHERE i<='abc' ORDER BY i;
SELECT * FROM test_bpchar WHERE i='abc' ORDER BY i;
SELECT * FROM test_bpchar WHERE i='abc ' ORDER BY i;
SELECT * FROM test_bpchar WHERE i>='abc' ORDER BY i;
SELECT * FROM test_bpchar WHERE i>'abc' ORDER BY i;
EXPLAIN (COSTS OFF) SELECT * FROM test_bpchar WHERE i<'abc' ORDER BY i;
EXPLAIN (COSTS OFF) SELECT * FROM test_bpchar WHERE i<='abc' ORDER BY i;
EXPLAIN (COSTS OFF) SELECT * FROM test_bpchar WHERE i='abc' ORDER BY i;
EXPLAIN (COSTS OFF) SELECT * FROM test_bpchar WHERE i>='abc' ORDER BY i;
EXPLAIN (COSTS OFF) SELECT * FROM test_bpchar WHERE i>'abc' ORDER BY i;