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14 lines
675 B
SQL
14 lines
675 B
SQL
drop table if exists lc_lambda;
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create table lc_lambda (arr Array(LowCardinality(UInt64))) engine = Memory;
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insert into lc_lambda select range(number) from system.numbers limit 10;
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select arrayFilter(x -> x % 2 == 0, arr) from lc_lambda;
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drop table if exists lc_lambda;
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drop table if exists test_array;
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CREATE TABLE test_array(resources_host Array(LowCardinality(String))) ENGINE = MergeTree() ORDER BY (resources_host);
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insert into test_array values (['a']);
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SELECT arrayMap(i -> [resources_host[i]], arrayEnumerate(resources_host)) FROM test_array;
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drop table if exists test_array;
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SELECT arrayMap(x -> (x + (arrayMap(y -> ((x + y) + toLowCardinality(1)), [])[1])), []);
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