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