mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-21 07:01:59 +00:00
15 lines
501 B
SQL
15 lines
501 B
SQL
DROP TABLE IF EXISTS t_comp_subcolumns;
|
|
|
|
CREATE TABLE t_comp_subcolumns (id UInt32, n Nullable(String), arr Array(Array(UInt32)))
|
|
ENGINE = MergeTree ORDER BY id;
|
|
|
|
INSERT INTO t_comp_subcolumns SELECT number, 'a', [range(number % 11), range(number % 13)] FROM numbers(20000);
|
|
|
|
SELECT sum(n.null) FROM t_comp_subcolumns;
|
|
SELECT n.null FROM t_comp_subcolumns LIMIT 10000, 5;
|
|
|
|
SELECT sum(arr.size0) FROM t_comp_subcolumns;
|
|
SELECT sumArray(arr.size1) FROM t_comp_subcolumns;
|
|
|
|
DROP TABLE t_comp_subcolumns;
|