ClickHouse/docs/en/sql-reference/aggregate-functions/reference/argmax.md

toc_priority
106

argMax

Syntax: argMax(arg, val) or argMax(tuple(arg, val))

Calculates the arg value for a maximum val value. If there are several different values of arg for maximum values of val, the first of these values encountered is output.

Tuple version of this function will return the tuple with the maximum val value. It is convinient for use with SimpleAggregateFunction.

Example:

┌─user─────┬─salary─┐
│ director │   5000 │
│ manager  │   3000 │
│ worker   │   1000 │
└──────────┴────────┘

SELECT argMax(user, salary), argMax(tuple(user, salary)) FROM salary

┌─argMax(user, salary)─┬─argMax(tuple(user, salary))─┐
│ director             │ ('director',5000)           │
└──────────────────────┴─────────────────────────────┘