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Merge with 4.0.9
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@ -260,7 +260,7 @@ t3 CREATE TABLE `t3` (
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`othr` int(11) NOT NULL default '0'
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) TYPE=MRG_MyISAM CHARSET=latin1 UNION=(t1,t2)
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drop table t3,t2,t1;
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create table t1 (a int not null) type=merge;
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create table t1 (a int not null, key(a)) type=merge;
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select * from t1;
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a
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drop table t1;
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@ -536,7 +536,7 @@ INSERT INTO t2 VALUES (1,2), (2,2);
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CREATE TABLE t3 ( a int(11) NOT NULL default '0', b int(11) NOT NULL default '0', KEY a (a,b)) TYPE=MRG_MyISAM UNION=(t1,t2);
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select max(b) from t3 where a = 2;
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max(b)
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NULL
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2
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select max(b) from t1 where a = 2;
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max(b)
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1
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