mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-12-04 21:42:39 +00:00
626 B
626 B
slug |
---|
/en/operations/system-tables/numbers |
numbers
This table contains a single UInt64 column named number
that contains almost all the natural numbers starting from zero.
You can use this table for tests, or if you need to do a brute force search.
Reads from this table are not parallelized.
Example
SELECT * FROM system.numbers LIMIT 10;
┌─number─┐
│ 0 │
│ 1 │
│ 2 │
│ 3 │
│ 4 │
│ 5 │
│ 6 │
│ 7 │
│ 8 │
│ 9 │
└────────┘
10 rows in set. Elapsed: 0.001 sec.