2010-09-07 16:06:33 +00:00
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SET STORAGE_ENGINE = 'tokudb';
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DROP TABLE IF EXISTS t;
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CREATE TABLE t (r INT, s INT, t BIGINT, PRIMARY KEY (r, s));
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INSERT INTO t VALUES (1,2,3),(4,5,6);
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EXPLAIN SELECT * FROM t WHERE r > 0;
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id select_type table type possible_keys key key_len ref rows Extra
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2012-01-16 17:44:31 +00:00
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1 SIMPLE t range PRIMARY PRIMARY 4 NULL NULL; Using where
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2010-09-07 16:06:33 +00:00
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CREATE INDEX it on t(t);
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EXPLAIN SELECT * FROM t WHERE r > 0;
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id select_type table type possible_keys key key_len ref rows Extra
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2012-01-16 17:44:31 +00:00
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1 SIMPLE t index PRIMARY it 9 NULL NULL; Using where; Using index
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2010-09-07 16:06:33 +00:00
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DROP TABLE t;
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