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9 lines
374 B
Text
9 lines
374 B
Text
create table t1 (pk int, i int, v int as (i*2) virtual, primary key (pk), key (v)) engine=myisam;
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insert into t1 (pk,i) values (1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(7,7),(8,8);
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create table t2 (a int, b int) engine=myisam;
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insert into t2 values (1,2),(2,4);
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select * from t1 inner join t2 on ( t2.b = t1.v or t2.a = t1.pk );
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pk i v a b
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1 1 0 1 2
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2 2 0 2 4
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drop table t1, t2;
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