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Maksim Kita 2021-05-17 22:08:06 +03:00
parent 448fe5a6f9
commit 8ef916a1ba
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tests/queries/0_stateless/00911_tautological_compare.sql
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-- TODO: Return this test after simplifying InterpreterSelectQuery
-- TODO: Tautological optimization breaks JIT expression compilation, because it can return constant result
-- for non constant columns. And then sample blocks from same ActionsDAGs can be mismatched.
-- This optimization cannot be performed on AST rewrite level, because we does not have information about types
-- and equals(tuple(NULL), tuple(NULL)) have same hash code, but should not be optimized.
-- Return this test after refactoring of InterpreterSelectQuery.
-- SELECT count() FROM system.numbers WHERE number != number;
-- SELECT count() FROM system.numbers WHERE number < number;
-- SELECT count() FROM system.numbers WHERE number > number;