numbers_mt
The same as system.numbers but reads are parallelized. The numbers can be returned in any order.
Used for tests.
Example
:) SELECT * FROM system.numbers_mt LIMIT 10;
ββnumberββ
β 0 β
β 1 β
β 2 β
β 3 β
β 4 β
β 5 β
β 6 β
β 7 β
β 8 β
β 9 β
ββββββββββ
10 rows in set. Elapsed: 0.001 sec.