22 lines
794 B
MySQL
22 lines
794 B
MySQL
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set enable_seqscan=off;
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CREATE TABLE test_name (
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i name
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);
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INSERT INTO test_name VALUES ('a'),('ab'),('abc'),('abb'),('axy'),('xyz');
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CREATE INDEX idx_name ON test_name USING gin (i);
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SELECT * FROM test_name WHERE i<'abc' ORDER BY i;
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SELECT * FROM test_name WHERE i<='abc' ORDER BY i;
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SELECT * FROM test_name WHERE i='abc' ORDER BY i;
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SELECT * FROM test_name WHERE i>='abc' ORDER BY i;
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SELECT * FROM test_name WHERE i>'abc' ORDER BY i;
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EXPLAIN (COSTS OFF) SELECT * FROM test_name WHERE i<'abc' ORDER BY i;
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EXPLAIN (COSTS OFF) SELECT * FROM test_name WHERE i<='abc' ORDER BY i;
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EXPLAIN (COSTS OFF) SELECT * FROM test_name WHERE i='abc' ORDER BY i;
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EXPLAIN (COSTS OFF) SELECT * FROM test_name WHERE i>='abc' ORDER BY i;
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EXPLAIN (COSTS OFF) SELECT * FROM test_name WHERE i>'abc' ORDER BY i;
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