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22 lines
485 B
MySQL
22 lines
485 B
MySQL
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drop table if exists t;
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create table t (a Int8, val Float32) engine = Memory();
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insert into t values (1,1.1), (1,1.2), (2,2.1);
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SET enable_optimize_predicate_expression = 0;
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SELECT * FROM (
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SELECT a, t1.val as val1, t2.val as val2
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FROM t t1
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ANY LEFT JOIN t t2 USING a
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) ORDER BY val1;
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SET enable_optimize_predicate_expression = 1;
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SELECT * FROM (
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SELECT a, t1.val as val1, t2.val as val2
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FROM t t1
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ANY LEFT JOIN t t2 USING a
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) ORDER BY val1;
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drop table t;
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