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715dc5f99d
of the 5.3 code line after a merge with 5.2 on 2010-10-28 in order not to allow the cost to access a joined table to be equal to 0 ever. Expanded data sets for many test cases to get the same execution plans as before.
36 lines
918 B
Plaintext
36 lines
918 B
Plaintext
#
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# Check on condition on different length keys.
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--disable_warnings
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drop table if exists t1;
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--enable_warnings
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CREATE TABLE t1 (
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a char(5) NOT NULL,
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b char(4) NOT NULL,
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KEY (a),
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KEY (b)
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);
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INSERT INTO t1 VALUES ('A','B'),('b','A'),('C','c'),('D','E'),('a','a');
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INSERT INTO t1 VALUES
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('AA','BB'),('bb','AA'),('CC','cc'),('DD','EE'),('aa','aa');
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INSERT INTO t1 VALUES
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('AAA','BBB'),('bbb','AAA'),('CCC','ccc'),('DDD','EEE'),('aaa','aaa');
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select * from t1,t1 as t2
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where length(t1.A)=1 and length(t2.B)=1 ;
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explain select t1.*,t2.* from t1,t1 as t2
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where t1.A=t2.B and length(t1.A)=1 and length(t2.B)=1;
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#select t1.*,t2.* from t1,t1 as t2 where t1.A=t2.B;
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select t1.*,t2.* from t1,t1 as t2
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where t1.A=t2.B and length(t1.A)=1 and length(t2.B)=1
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order by binary t1.a,t2.a;
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select * from t1 where a='a';
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drop table t1;
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--disable_query_log
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drop database pbxt;
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--enable_query_log
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# End of 4.1 tests
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