org.apache.spark.sql.catalyst.expressions.aggregate.AlgebraicAggregate

RichAttribute

implicit class RichAttribute extends AnyRef

A helper class for representing an attribute used in merging two aggregation buffers. When merging two buffers, bufferLeft and bufferRight, we merge buffer values and then update bufferLeft. A RichAttribute of an AttributeReference a has two functions left and right, which represent a in bufferLeft and bufferRight, respectively.

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Instance Constructors

  1. new RichAttribute(a: AttributeReference)

    a

Value Members

  1. final def !=(arg0: AnyRef): Boolean

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  2. final def !=(arg0: Any): Boolean

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  3. final def ##(): Int

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  4. final def ==(arg0: AnyRef): Boolean

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  5. final def ==(arg0: Any): Boolean

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  6. final def asInstanceOf[T0]: T0

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  7. def clone(): AnyRef

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  8. final def eq(arg0: AnyRef): Boolean

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  9. def equals(arg0: Any): Boolean

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  10. def finalize(): Unit

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  11. final def getClass(): Class[_]

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  12. def hashCode(): Int

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  13. final def isInstanceOf[T0]: Boolean

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  14. def left: AttributeReference

    Represents this attribute at the mutable buffer side.

  15. final def ne(arg0: AnyRef): Boolean

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  16. final def notify(): Unit

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  17. final def notifyAll(): Unit

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  18. def right: AttributeReference

    Represents this attribute at the input buffer side (the data value is read-only).

  19. final def synchronized[T0](arg0: ⇒ T0): T0

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  20. def toString(): String

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  21. final def wait(): Unit

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  22. final def wait(arg0: Long, arg1: Int): Unit

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  23. final def wait(arg0: Long): Unit

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