mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-10 01:25:21 +00:00
19 lines
656 B
SQL
19 lines
656 B
SQL
DROP TABLE IF EXISTS test_00974;
|
|
|
|
set allow_deprecated_syntax_for_merge_tree=1;
|
|
CREATE TABLE test_00974
|
|
(
|
|
date Date,
|
|
x Int32,
|
|
ver UInt64
|
|
)
|
|
ENGINE = ReplacingMergeTree(date, x, 1);
|
|
|
|
INSERT INTO test_00974 VALUES ('2019-07-23', 1, 1), ('2019-07-23', 1, 2);
|
|
INSERT INTO test_00974 VALUES ('2019-07-23', 2, 1), ('2019-07-23', 2, 2);
|
|
|
|
SELECT COUNT() FROM (SELECT * FROM test_00974 FINAL) where x = 1 SETTINGS enable_optimize_predicate_expression_to_final_subquery = 0;
|
|
SELECT COUNT() FROM (SELECT * FROM test_00974 FINAL) where x = 1 SETTINGS enable_optimize_predicate_expression_to_final_subquery = 1, max_rows_to_read = 2;
|
|
|
|
DROP TABLE test_00974;
|