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Merge bk@192.168.21.1:mysql-5.1
into mysql.com:/home/hf/work/mrg/mysql-5.1-opt
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commit
cdcf3ec097
32 changed files with 629 additions and 114 deletions
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@ -950,6 +950,14 @@ NULL
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2
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3
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DROP TABLE t1,t2,t3,t4;
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create table t1 (a int, b int, c int);
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insert into t1 values (1,2,3), (9,8,3), (19,4,3), (1,4,9);
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select a,(sum(b)/sum(c)) as ratio from t1 group by a order by sum(b)/sum(c) asc;
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a ratio
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1 0.5000
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19 1.3333
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9 2.6667
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drop table t1;
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CREATE TABLE t1 (a INT, b INT, PRIMARY KEY (a), UNIQUE KEY b (b));
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INSERT INTO t1 VALUES (1,1),(2,2);
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CREATE TABLE t2 (a INT, b INT, KEY a (a,b));
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