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Merge moonbone.local:/work/tmp_merge-5.0-mysql
into moonbone.local:/work/tmp_merge-5.1-opt-mysql
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@ -838,3 +838,61 @@ select a, hex(filler) from t1 where a not between 'b' and 'b';
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a hex(filler)
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a 0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
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drop table t1,t2,t3;
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create table t1 (a int);
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insert into t1 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
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create table t2 (a int, key(a));
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insert into t2 select 2*(A.a + 10*(B.a + 10*C.a)) from t1 A, t1 B, t1 C;
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set @a="select * from t2 force index (a) where a NOT IN(0";
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select count(*) from (select @a:=concat(@a, ',', a) from t2 ) Z;
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count(*)
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1000
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set @a=concat(@a, ')');
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insert into t2 values (11),(13),(15);
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set @b= concat("explain ", @a);
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prepare stmt1 from @b;
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execute stmt1;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t2 index a a 5 NULL 1003 Using where; Using index
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prepare stmt1 from @a;
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execute stmt1;
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a
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11
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13
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15
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drop table t1, t2;
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CREATE TABLE t1 (
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id int NOT NULL DEFAULT '0',
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b int NOT NULL DEFAULT '0',
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c int NOT NULL DEFAULT '0',
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INDEX idx1(b,c), INDEX idx2(c));
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INSERT INTO t1(id) VALUES (1), (2), (3), (4), (5), (6), (7), (8);
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INSERT INTO t1(b,c) VALUES (3,4), (3,4);
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SELECT * FROM t1 WHERE b<=3 AND 3<=c;
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id b c
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0 3 4
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0 3 4
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SELECT * FROM t1 WHERE 3 BETWEEN b AND c;
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id b c
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0 3 4
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0 3 4
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EXPLAIN SELECT * FROM t1 WHERE b<=3 AND 3<=c;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 range idx1,idx2 idx2 4 NULL 3 Using where
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EXPLAIN SELECT * FROM t1 WHERE 3 BETWEEN b AND c;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 range idx1,idx2 idx2 4 NULL 3 Using where
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SELECT * FROM t1 WHERE 0 < b OR 0 > c;
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id b c
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0 3 4
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0 3 4
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SELECT * FROM t1 WHERE 0 NOT BETWEEN b AND c;
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id b c
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0 3 4
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0 3 4
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EXPLAIN SELECT * FROM t1 WHERE 0 < b OR 0 > c;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 index_merge idx1,idx2 idx1,idx2 4,4 NULL 4 Using sort_union(idx1,idx2); Using where
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EXPLAIN SELECT * FROM t1 WHERE 0 NOT BETWEEN b AND c;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 index_merge idx1,idx2 idx1,idx2 4,4 NULL 4 Using sort_union(idx1,idx2); Using where
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DROP TABLE t1;
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