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test for no column cause of bug in query optimisation

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chertus 2019-04-09 20:43:23 +03:00
parent e53a50e01a
commit 69ed2a5112
2 changed files with 16 additions and 0 deletions
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dbms/tests/queries/0_stateless/00856_no_column_issue_4242.reference Normal file
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dbms/tests/queries/0_stateless/00856_no_column_issue_4242.sql Normal file
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USE test;
DROP TABLE IF EXISTS t1;
DROP TABLE IF EXISTS t2;
CREATE TABLE t1 (n Int32) ENGINE = Memory;
CREATE TABLE t2 (a Int32, n Int32) ENGINE = Memory;
SELECT count() FROM t1 WHERE if(1, 1, n = 0);
SELECT count(n) FROM t2 WHERE if(1, 1, n = 0);
SELECT count() FROM t2 WHERE if(1, 1, n = 0);
DROP TABLE t1;
DROP TABLE t2;