ClickHouse/tests/queries/0_stateless/00688_case_without_else.sql

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DROP TABLE IF EXISTS test_00688;
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CREATE TABLE test_00688 (a UInt8) ENGINE = Memory;
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INSERT INTO test_00688 VALUES (1), (2), (1), (3);
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SELECT CASE WHEN a=1 THEN 0 END FROM test_00688;
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DROP TABLE test_00688;