STRING_MAX_EACH

Collects the maximum value per given group.

This is the string comparison equivalent of MAX_EACH.

Syntax

STRING_MAX_EACH([MAX_VALUES,] GROUP, VALUE)

Arguments

MAX_VALUES

Type: integer

Default: 2,147,483,647

(Optional) The maximum number of groups. Groups beyond this amount are discarded. When omitted, there is effectively no limit.

In some cases, discarding groups via this option may cause some data to be discarded from groups that would otherwise have been kept.

GROUP

Type: any

The field to group by.

VALUE

Type: string

The field to get the maximum value of.

Returns

Type: array

Returns an array of key-value pairs where each GROUP is matched to the maximum VALUE seen for that group.