partitionBy

fun WindowSpecificationExpression.partitionBy(
    columns: Collection<ColumnDeclaring<*>>
): WindowSpecificationExpression

(source code)

fun WindowSpecificationExpression.partitionBy(
    vararg columns: ColumnDeclaring<*>
): WindowSpecificationExpression

(source code)

Specify the partition-by clause of this window using the given columns or expressions.

A partition-by clause indicates how to divide the query rows into groups. The window function result for a given row
is based on the rows of the partition that contains the row. If partition-by is omitted, there is a single partition
consisting of all query rows.

Since
3.6.0