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23 lines
625 B
Plaintext
23 lines
625 B
Plaintext
--disable_warnings
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drop table if exists t1,t2;
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--enable_warnings
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#
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# SELECT that uses a virtual column and executed with BKA
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#
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create table t1 (a int, b int);
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insert into t1 values (3, 30), (4, 20), (1, 20);
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create table t2 (c int, d int, v int as (d+1), index idx(c));
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insert into t2(c,d) values
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(20, 100), (20, 300), (30, 100), (30, 200), (40, 500),
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(70, 100), (40, 300), (60, 100), (40, 100), (70, 100);
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set join_cache_level=6;
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explain
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select * from t1,t2 where t1.b=t2.c and d <= 100;
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select * from t1,t2 where t1.b=t2.c and d <= 100;
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set join_cache_level=default;
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drop table t1, t2; |