numbers

numbers(N) - returns the table with one column named number (UInt64 type), containing integer numbers from 0 to N-1.

numbers(N) (like a table system.numbers) can be used in tests or for sequences generation.

Two following queries are equal:

SELECT * FROM numbers(10);
SELECT * FROM system.numbers LIMIT 10;

Samples:

-- generation of sequence of dates from 2010-01-01 to 2010-12-31
select toDate('2010-01-01') + number as d FROM numbers(365);