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5.3 merge
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@ -11,34 +11,9 @@ INSERT INTO t1 VALUES('aa','bb');
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SET SESSION sql_big_tables = 1;
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SET @diskTableCount = 0;
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SET @tempTableCount = 0;
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SELECT * FROM (SELECT ta.a as a, tb.b as b
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FROM t1 as ta INNER JOIN t1 as tb ON ta.a = tb.a) sub;
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a b
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aa bb
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aa bb
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aa bb
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aa bb
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aa bb
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aa bb
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aa bb
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aa bb
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aa bb
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aa bb
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aa bb
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aa bb
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aa bb
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aa bb
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aa bb
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aa bb
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aa bb
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aa bb
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aa bb
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aa bb
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aa bb
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aa bb
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aa bb
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aa bb
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aa bb
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select count(a), b from t1 group by b;
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count(a) b
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5 bb
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SET @diskTableCount = 1 - @diskTableCount;
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SET @tempTableCount = 1 - @tempTableCount;
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SELECT @diskTableCount;
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