argMin

Calculates the arg value for a minimum val value. If there are several different values of arg for minimum values of val, returns the first of these values encountered.

Syntax

argMin(arg, val)

Arguments

Arguments	Description
arg	Argument
val	Value

Return Type

arg value that corresponds to minimum val value.

matches arg type.

Examples

note

numbers(N) – A table for test with the single number column (UInt64) that contains integers from 0 to N-1.

Input table:

mysql> SELECT sum(number) AS salary, number%3 AS user FROM numbers_mt(10000) GROUP BY user ORDER BY salary ASC;
+----------+------+
| salary   | user |
+----------+------+
| 16661667 |    1 |
| 16665000 |    2 |
| 16668333 |    0 |
+----------+------+

mysql> SELECT argMin(user, salary)  FROM (SELECT sum(number) AS salary, number%3 AS user FROM numbers_mt(10000) GROUP BY user);
+----------------------+
| argMin(user, salary) |
+----------------------+
|                    1 |
+----------------------+