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Bug #27531: 5.1 part of the fix
- Renamed "Using join cache" to "Using join buffer". - "Using join buffer" is now printed on the last table that "reads" from the join buffer cache.
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@ -184,8 +184,8 @@ min(7)
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7
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explain select min(7) from t2i join t1i;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t2i ALL NULL NULL NULL NULL 1 Using join cache
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1 SIMPLE t1i ALL NULL NULL NULL NULL 1
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1 SIMPLE t2i ALL NULL NULL NULL NULL 1
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1 SIMPLE t1i ALL NULL NULL NULL NULL 1 Using join buffer
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select min(7) from t2i join t1i;
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min(7)
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NULL
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@ -200,8 +200,8 @@ max(7)
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7
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explain select max(7) from t2i join t1i;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t2i ALL NULL NULL NULL NULL 1 Using join cache
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1 SIMPLE t1i ALL NULL NULL NULL NULL 1
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1 SIMPLE t2i ALL NULL NULL NULL NULL 1
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1 SIMPLE t1i ALL NULL NULL NULL NULL 1 Using join buffer
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select max(7) from t2i join t1i;
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max(7)
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NULL
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