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数字
numbers(N) – Returns a table with the single ‘number’ 0からN-1までの整数を含む列(UInt64)。
numbers(N, M) -単一のテーブルを返します ‘number’ nから(N+M-1)までの整数を含む列(UInt64)。
に類似した system.numbers テーブルに使用でき試験および発生連続値, numbers(N, M) より有効 system.numbers.
次のクエリは同等です:
SELECT * FROM numbers(10);
SELECT * FROM numbers(0, 10);
SELECT * FROM system.numbers LIMIT 10;
例:
-- Generate a sequence of dates from 2010-01-01 to 2010-12-31
select toDate('2010-01-01') + number as d FROM numbers(365);