MIN_IF
MIN_IF
The suffix _IF
can be appended to the name of any aggregate function. In this case, the aggregate function accepts an extra argument – a condition.
MIN_IF(column, cond)
Examples
tip
numbers(N) – A table for test with the single number
column (UInt64) that contains integers from 0 to N-1.
SELECT min(number) FROM numbers(10);
+-------------+
| min(number) |
+-------------+
| 0 |
+-------------+
SELECT min_if(number, number > 7) FROM numbers(10);
+------------------------------+
| min_if(number, (number > 7)) |
+------------------------------+
| 8 |
+------------------------------+