ClickHouse/tests/queries/0_stateless/02116_tuple_element.sql

DROP TABLE IF EXISTS t_tuple_element;

CREATE TABLE t_tuple_element(t1 Tuple(a UInt32, s String), t2 Tuple(UInt32, String)) ENGINE = Memory;
INSERT INTO t_tuple_element VALUES ((1, 'a'), (2, 'b'));

SET optimize_functions_to_subcolumns = 1;

SELECT t1.1 FROM t_tuple_element;
EXPLAIN SYNTAX SELECT t1.1 FROM t_tuple_element;

SELECT tupleElement(t1, 2) FROM t_tuple_element;
EXPLAIN SYNTAX SELECT tupleElement(t1, 2) FROM t_tuple_element;

SELECT tupleElement(t1, 'a') FROM t_tuple_element;
EXPLAIN SYNTAX SELECT tupleElement(t1, 'a') FROM t_tuple_element;

SELECT tupleElement(number, 1) FROM numbers(1); -- { serverError ILLEGAL_TYPE_OF_ARGUMENT }
SELECT tupleElement(t1) FROM t_tuple_element; -- { serverError NUMBER_OF_ARGUMENTS_DOESNT_MATCH }
SELECT tupleElement(t1, 'b') FROM t_tuple_element; -- { serverError NOT_FOUND_COLUMN_IN_BLOCK, UNKNOWN_IDENTIFIER }
SELECT tupleElement(t1, 0) FROM t_tuple_element; -- { serverError ILLEGAL_INDEX, NOT_FOUND_COLUMN_IN_BLOCK }
SELECT tupleElement(t1, 3) FROM t_tuple_element; -- { serverError ILLEGAL_INDEX, NOT_FOUND_COLUMN_IN_BLOCK }
SELECT tupleElement(t1, materialize('a')) FROM t_tuple_element; -- { serverError ILLEGAL_TYPE_OF_ARGUMENT, NOT_FOUND_COLUMN_IN_BLOCK }

SELECT t2.1 FROM t_tuple_element;
EXPLAIN SYNTAX SELECT t2.1 FROM t_tuple_element;

SELECT tupleElement(t2, 1) FROM t_tuple_element;
EXPLAIN SYNTAX SELECT tupleElement(t2, 1) FROM t_tuple_element;

SELECT tupleElement(t2) FROM t_tuple_element; -- { serverError NUMBER_OF_ARGUMENTS_DOESNT_MATCH }
SELECT tupleElement(t2, 'a') FROM t_tuple_element; -- { serverError NOT_FOUND_COLUMN_IN_BLOCK, UNKNOWN_IDENTIFIER }
SELECT tupleElement(t2, 0) FROM t_tuple_element; -- { serverError ILLEGAL_INDEX, NOT_FOUND_COLUMN_IN_BLOCK }
SELECT tupleElement(t2, 3) FROM t_tuple_element; -- { serverError ILLEGAL_INDEX, NOT_FOUND_COLUMN_IN_BLOCK }
SELECT tupleElement(t2, materialize(1)) FROM t_tuple_element; -- { serverError ILLEGAL_TYPE_OF_ARGUMENT, NOT_FOUND_COLUMN_IN_BLOCK }

DROP TABLE t_tuple_element;

WITH (1, 2) AS t SELECT t.1, t.2;
EXPLAIN SYNTAX WITH (1, 2) AS t SELECT t.1, t.2;

WITH (1, 2)::Tuple(a UInt32, b UInt32) AS t SELECT t.1, tupleElement(t, 'b');
EXPLAIN SYNTAX WITH (1, 2)::Tuple(a UInt32, b UInt32) AS t SELECT t.1, tupleElement(t, 'b');