15 lines
394 B
Plaintext
15 lines
394 B
Plaintext
CREATE TABLE t1 (f1 INT, f2 INT);
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INSERT into t1 VALUE(1,1),(1,2),(1,3),(2,1),(2,2),(2,3);
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FLUSH STATUS;
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CREATE TABLE t2 SELECT SQL_BIG_RESULT f1, COUNT(f2) FROM t1 GROUP BY f1;
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SHOW STATUS LIKE 'handler_read%';
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Variable_name Value
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Handler_read_first 1
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Handler_read_key 30
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Handler_read_last 0
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Handler_read_next 0
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Handler_read_prev 0
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Handler_read_rnd 0
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Handler_read_rnd_next 7
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DROP TABLE t1,t2;
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