mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-21 15:12:02 +00:00
12 lines
585 B
SQL
12 lines
585 B
SQL
drop table if exists lc_lambda;
|
|
create table lc_lambda (arr Array(LowCardinality(UInt64))) engine = Memory;
|
|
insert into lc_lambda select range(number) from system.numbers limit 10;
|
|
select arrayFilter(x -> x % 2 == 0, arr) from lc_lambda;
|
|
drop table if exists lc_lambda;
|
|
|
|
drop table if exists test_array;
|
|
CREATE TABLE test_array(resources_host Array(LowCardinality(String))) ENGINE = MergeTree() ORDER BY (resources_host);
|
|
insert into test_array values (['a']);
|
|
SELECT arrayMap(i -> [resources_host[i]], arrayEnumerate(resources_host)) FROM test_array;
|
|
drop table if exists test_array;
|