ClickHouse/tests/queries/0_stateless/01029_early_constant_folding.sql

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-- constant folding
EXPLAIN SYNTAX SELECT 1 WHERE 1 = 0;
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EXPLAIN SYNTAX SELECT 1 WHERE 1 IN (0, 1, 2);
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EXPLAIN SYNTAX SELECT 1 WHERE 1 IN (0, 2) AND 2 = (SELECT 2);
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-- no constant folding
EXPLAIN SYNTAX SELECT 1 WHERE 1 IN ((SELECT arrayJoin([1, 2, 3])) AS subquery);
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EXPLAIN SYNTAX SELECT 1 WHERE NOT ignore();