system.numbers_mt - ClickHouse Documentation

Description

The same as system.numbers but reads are parallelized. The numbers can be returned in any order. Used for tests.

Columns

Example

SELECT * FROM system.numbers_mt LIMIT 10;

┌─number─┐
│      0 │
│      1 │
│      2 │
│      3 │
│      4 │
│      5 │
│      6 │
│      7 │
│      8 │
│      9 │
└────────┘

10 rows in set. Elapsed: 0.001 sec.

Last modified on June 23, 2026

system.oneSystem table containing a single row with a single `dummy` UInt8 column containing the value 0. Similar to the `DUAL` table found in other DBMSs.