MAXBY

Finds the maximum of a list of numbers, partitioned by the unique values of a separate column

MAXBY(column, partition column )

Returns the maximum value in a column when grouped by unique values within a partition column

MAXBY() is a window function, which performs MAX() except partitioned by the unique values of a separate column.

Arguments

Arguments	Description
column	Column to search for maximum
partition column	Column containing unique values

Output

Outputs the maximum value of a column when grouped by partition column

Example