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Merge branch '10.2' into 10.3
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@ -94,7 +94,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
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2 DEPENDENT SUBQUERY t3 ALL bb NULL NULL NULL 2 100.00 Using where
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Warnings:
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Note 1276 Field or reference 'test.t1.a' of SELECT #2 was resolved in SELECT #1
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Note 1003 /* select#1 */ select `test`.`t1`.`a` AS `a` from `test`.`t1` where exists(/* select#2 */ select `test`.`t3`.`a` from `test`.`t3` where `test`.`t3`.`b` = `test`.`t1`.`a`)
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Note 1003 /* select#1 */ select `test`.`t1`.`a` AS `a` from `test`.`t1` where exists(/* select#2 */ select `test`.`t3`.`a` from `test`.`t3` where `test`.`t3`.`b` = `test`.`t1`.`a` limit 1)
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set optimizer_switch=default;
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set optimizer_switch='exists_to_in=on';
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drop table t1,t2,t3;
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@ -358,7 +358,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
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3 SUBQUERY t3 ALL NULL NULL NULL NULL 2 100.00 Using where
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Warnings:
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Note 1276 Field or reference 'test.t2.b' of SELECT #3 was resolved in SELECT #2
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Note 1003 /* select#1 */ select (/* select#2 */ select 1 from dual where !exists(/* select#3 */ select `test`.`t3`.`c` from `test`.`t3` where `test`.`t3`.`c` = 1)) AS `( SELECT b FROM t2 WHERE NOT EXISTS ( SELECT c FROM t3 WHERE c = b ) )` from `test`.`t1`
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Note 1003 /* select#1 */ select (/* select#2 */ select 1 from dual where !exists(/* select#3 */ select `test`.`t3`.`c` from `test`.`t3` where `test`.`t3`.`c` = 1 limit 1)) AS `( SELECT b FROM t2 WHERE NOT EXISTS ( SELECT c FROM t3 WHERE c = b ) )` from `test`.`t1`
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SELECT ( SELECT b FROM t2 WHERE NOT EXISTS ( SELECT c FROM t3 WHERE c = b ) ) FROM t1;
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( SELECT b FROM t2 WHERE NOT EXISTS ( SELECT c FROM t3 WHERE c = b ) )
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1
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@ -429,7 +429,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
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Warnings:
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Note 1276 Field or reference 'test.t1.a' of SELECT #2 was resolved in SELECT #1
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Note 1276 Field or reference 'test.t1.a1' of SELECT #2 was resolved in SELECT #1
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Note 1003 /* select#1 */ select `test`.`t1`.`a` AS `a`,`test`.`t1`.`a1` AS `a1` from `test`.`t1` where exists(/* select#2 */ select 1 from `test`.`t3` where `test`.`t3`.`b` = `test`.`t1`.`a` and `test`.`t3`.`b1` = `test`.`t1`.`a1`)
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Note 1003 /* select#1 */ select `test`.`t1`.`a` AS `a`,`test`.`t1`.`a1` AS `a1` from `test`.`t1` where exists(/* select#2 */ select 1 from `test`.`t3` where `test`.`t3`.`b` = `test`.`t1`.`a` and `test`.`t3`.`b1` = `test`.`t1`.`a1` limit 1)
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set optimizer_switch=default;
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set optimizer_switch='exists_to_in=on';
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drop table t1,t3;
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@ -905,7 +905,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
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Warnings:
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Note 1276 Field or reference 'sq1.pk' of SELECT #3 was resolved in SELECT #1
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Note 1276 Field or reference 'sq1.f1' of SELECT #3 was resolved in SELECT #1
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Note 1003 /* select#1 */ select straight_join `test`.`t1`.`f2` AS `f2` from `test`.`t1` where <expr_cache><`test`.`t1`.`f1`,`test`.`t1`.`pk`>(exists(/* select#3 */ select 1 from `test`.`t1` `sq2` semi join (`test`.`t1`) where `test`.`sq2`.`f1` = `test`.`t1`.`f1` and `test`.`t1`.`pk` = `test`.`t1`.`f1`))
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Note 1003 /* select#1 */ select straight_join `test`.`t1`.`f2` AS `f2` from `test`.`t1` where <expr_cache><`test`.`t1`.`f1`,`test`.`t1`.`pk`>(exists(/* select#3 */ select 1 from `test`.`t1` `sq2` semi join (`test`.`t1`) where `test`.`sq2`.`f1` = `test`.`t1`.`f1` and `test`.`t1`.`pk` = `test`.`t1`.`f1` limit 1))
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SELECT STRAIGHT_JOIN sq1.f2
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FROM ( SELECT * FROM t1 ) AS sq1
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WHERE EXISTS ( SELECT * FROM t1 AS sq2
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