DROP TABLE IF EXISTS t_tuple_element_default; CREATE TABLE t_tuple_element_default(t1 Tuple(a UInt32, s String), t2 Tuple(UInt32, String)) ENGINE = Memory; INSERT INTO t_tuple_element_default VALUES ((1, 'a'), (2, 'b')); SELECT tupleElement(t1, 'z', 'z') FROM t_tuple_element_default; EXPLAIN SYNTAX SELECT tupleElement(t1, 'z', 'z') FROM t_tuple_element_default; SELECT tupleElement(t1, 'z', 0) FROM t_tuple_element_default; EXPLAIN SYNTAX SELECT tupleElement(t1, 'z', 0) FROM t_tuple_element_default; SELECT tupleElement(t2, 'z', 'z') FROM t_tuple_element_default; EXPLAIN SYNTAX SELECT tupleElement(t2, 'z', 'z') FROM t_tuple_element_default; SELECT tupleElement(t1, 3, 'z') FROM t_tuple_element_default; -- { serverError 127 } SELECT tupleElement(t1, 0, 'z') FROM t_tuple_element_default; -- { serverError 127 } DROP TABLE t_tuple_element_default; SELECT '--------------------'; SELECT tupleElement(array(tuple(1, 2)), 'a', 0); -- { serverError 645 } SELECT tupleElement(array(tuple(1, 2)), 'a', array(tuple(1, 2), tuple(3, 4))); -- { serverError 190 } SELECT tupleElement(array(array(tuple(1))), 'a', array(array(1, 2, 3))); -- { serverError 190 } SELECT tupleElement(array(tuple(1, 2)), 'a', array(tuple(3, 4))); EXPLAIN SYNTAX SELECT tupleElement(array(tuple(1, 2)), 'a', array(tuple(3, 4))); SELECT '--------------------'; CREATE TABLE t_tuple_element_default(t1 Array(Tuple(UInt32)), t2 UInt32) ENGINE = Memory; SELECT tupleElement(t1, 'a', array(tuple(1))) FROM t_tuple_element_default; EXPLAIN SYNTAX SELECT tupleElement(t1, 'a', array(tuple(1))) FROM t_tuple_element_default; SELECT '--------------------'; INSERT INTO t_tuple_element_default VALUES ([(1)], 100); SELECT tupleElement(t1, 'a', array(tuple(0))) FROM t_tuple_element_default; EXPLAIN SYNTAX SELECT tupleElement(t1, 'a', array(tuple(0))) FROM t_tuple_element_default; SELECT tupleElement(t1, 'a', array(0)) FROM t_tuple_element_default; EXPLAIN SYNTAX SELECT tupleElement(t1, 'a', array(0)) FROM t_tuple_element_default; INSERT INTO t_tuple_element_default VALUES ([(2)], 200); SELECT tupleElement(t1, 'a', array(0)) FROM t_tuple_element_default; EXPLAIN SYNTAX SELECT tupleElement(t1, 'a', array(0)) FROM t_tuple_element_default; DROP TABLE t_tuple_element_default;