org.apache.spark.sql.expressions

WindowSpec

class WindowSpec extends AnyRef

:: Experimental :: A window specification that defines the partitioning, ordering, and frame boundaries.

Use the static methods in Window to create a WindowSpec.

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@Experimental()
Since

1.4.0

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  16. final def notifyAll(): Unit

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  17. def orderBy(cols: Column*): WindowSpec

    Defines the ordering columns in a WindowSpec.

    Defines the ordering columns in a WindowSpec.

    Annotations
    @varargs()
    Since

    1.4.0

  18. def orderBy(colName: String, colNames: String*): WindowSpec

    Defines the ordering columns in a WindowSpec.

    Defines the ordering columns in a WindowSpec.

    Annotations
    @varargs()
    Since

    1.4.0

  19. def partitionBy(cols: Column*): WindowSpec

    Defines the partitioning columns in a WindowSpec.

    Defines the partitioning columns in a WindowSpec.

    Annotations
    @varargs()
    Since

    1.4.0

  20. def partitionBy(colName: String, colNames: String*): WindowSpec

    Defines the partitioning columns in a WindowSpec.

    Defines the partitioning columns in a WindowSpec.

    Annotations
    @varargs()
    Since

    1.4.0

  21. def rangeBetween(start: Long, end: Long): WindowSpec

    Defines the frame boundaries, from start (inclusive) to end (inclusive).

    Defines the frame boundaries, from start (inclusive) to end (inclusive).

    Both start and end are relative from the current row. For example, "0" means "current row", while "-1" means one off before the current row, and "5" means the five off after the current row.

    start

    boundary start, inclusive. The frame is unbounded if this is the minimum long value.

    end

    boundary end, inclusive. The frame is unbounded if this is the maximum long value.

    Since

    1.4.0

  22. def rowsBetween(start: Long, end: Long): WindowSpec

    Defines the frame boundaries, from start (inclusive) to end (inclusive).

    Defines the frame boundaries, from start (inclusive) to end (inclusive).

    Both start and end are relative positions from the current row. For example, "0" means "current row", while "-1" means the row before the current row, and "5" means the fifth row after the current row.

    start

    boundary start, inclusive. The frame is unbounded if this is the minimum long value.

    end

    boundary end, inclusive. The frame is unbounded if this is the maximum long value.

    Since

    1.4.0

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