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26 lines
1 KiB
C++
26 lines
1 KiB
C++
--eval create table t1(a int not null, b int, c char(10), d varchar(20), primary key (a)) engine = innodb default charset=$charset
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insert into t1 values (1,1,'ab','ab'),(2,2,'ac','ac'),(3,2,'ad','ad'),(4,4,'afe','afe');
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commit;
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--error ER_DUP_ENTRY
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alter table t1 add unique index (b);
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insert into t1 values(8,9,'fff','fff');
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select * from t1;
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show create table t1;
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alter table t1 add index (b);
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insert into t1 values(10,10,'kkk','iii');
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select * from t1;
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select * from t1 force index(b) order by b;
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explain select * from t1 force index(b) order by b;
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show create table t1;
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alter table t1 add unique index (c), add index (d);
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insert into t1 values(11,11,'aaa','mmm');
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select * from t1;
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select * from t1 force index(b) order by b;
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select * from t1 force index(c) order by c;
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select * from t1 force index(d) order by d;
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explain select * from t1 force index(b) order by b;
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explain select * from t1 force index(c) order by c;
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explain select * from t1 force index(d) order by d;
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show create table t1;
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check table t1;
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drop table t1;
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