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

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332 B
SQL

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