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Merge dl145s.mysql.com:/data/bk/team_tree_merge/MERGE/mysql-5.0-opt
into dl145s.mysql.com:/data/bk/team_tree_merge/MERGE/mysql-5.1-opt
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@ -290,6 +290,22 @@ id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t2 index NULL fkey 5 NULL 5 Using index
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1 SIMPLE t1 eq_ref PRIMARY PRIMARY 4 test.t2.fkey 1 Using where
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DROP TABLE t1,t2;
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CREATE TABLE t1 (a INT PRIMARY KEY, b INT, c FLOAT, KEY b(b)) ENGINE = INNODB;
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INSERT INTO t1 VALUES ( 1 , 1 , 1);
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INSERT INTO t1 SELECT a + 1 , MOD(a + 1 , 20), 1 FROM t1;
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INSERT INTO t1 SELECT a + 2 , MOD(a + 2 , 20), 1 FROM t1;
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INSERT INTO t1 SELECT a + 4 , MOD(a + 4 , 20), 1 FROM t1;
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INSERT INTO t1 SELECT a + 8 , MOD(a + 8 , 20), 1 FROM t1;
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INSERT INTO t1 SELECT a + 16, MOD(a + 16, 20), 1 FROM t1;
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INSERT INTO t1 SELECT a + 32, MOD(a + 32, 20), 1 FROM t1;
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INSERT INTO t1 SELECT a + 64, MOD(a + 64, 20), 1 FROM t1;
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EXPLAIN SELECT b, SUM(c) FROM t1 GROUP BY b;
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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 NULL b 5 NULL 128
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EXPLAIN SELECT SQL_BIG_RESULT b, SUM(c) FROM t1 GROUP BY b;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 ALL NULL NULL NULL NULL 128 Using filesort
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DROP TABLE t1;
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CREATE TABLE t1 (a int, b int);
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insert into t1 values (1,1),(1,2);
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CREATE TABLE t2 (primary key (a)) select * from t1;
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