ClickHouse/tests/queries/0_stateless/02366_explain_query_tree.sql
2024-08-05 15:29:14 +00:00

39 lines
846 B
SQL

SET enable_analyzer = 1;
EXPLAIN QUERY TREE run_passes = 0 SELECT 1;
SELECT '--';
DROP TABLE IF EXISTS test_table;
CREATE TABLE test_table
(
id UInt64,
value String
) ENGINE=TinyLog;
INSERT INTO test_table VALUES (0, 'Value');
EXPLAIN QUERY TREE run_passes = 0 SELECT id, value FROM test_table;
SELECT '--';
EXPLAIN QUERY TREE run_passes = 1 SELECT id, value FROM test_table;
SELECT '--';
EXPLAIN QUERY TREE run_passes = 0 SELECT arrayMap(x -> x + id, [1, 2, 3]) FROM test_table;
SELECT '--';
EXPLAIN QUERY TREE run_passes = 1 SELECT arrayMap(x -> x + 1, [1, 2, 3]) FROM test_table;
SELECT '--';
EXPLAIN QUERY TREE run_passes = 0 WITH x -> x + 1 AS lambda SELECT lambda(id) FROM test_table;
SELECT '--';
EXPLAIN QUERY TREE run_passes = 1 WITH x -> x + 1 AS lambda SELECT lambda(id) FROM test_table;
DROP TABLE test_table;