Class

org.apache.spark.sql.catalyst.expressions

SplitEvaluation

Related Doc: package expressions

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case class SplitEvaluation(finalEvaluation: Expression, partialEvaluations: Seq[NamedExpression]) extends Product with Serializable

Represents an aggregation that has been rewritten to be performed in two steps.

finalEvaluation

an aggregate expression that evaluates to same final result as the original aggregation.

partialEvaluations

A sequence of NamedExpressions that can be computed on partial data sets and are required to compute the finalEvaluation.

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Instance Constructors

  1. new SplitEvaluation(finalEvaluation: Expression, partialEvaluations: Seq[NamedExpression])

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    finalEvaluation

    an aggregate expression that evaluates to same final result as the original aggregation.

    partialEvaluations

    A sequence of NamedExpressions that can be computed on partial data sets and are required to compute the finalEvaluation.

Value Members

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

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    AnyRef → Any

  2. final def ##(): Int

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

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  4. final def asInstanceOf[T0]: T0

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  5. def clone(): AnyRef

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    protected[java.lang]
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    @throws( ... )

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

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  7. val finalEvaluation: Expression

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    an aggregate expression that evaluates to same final result as the original aggregation.

  8. def finalize(): Unit

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    protected[java.lang]
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    @throws( classOf[java.lang.Throwable] )

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

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  10. final def isInstanceOf[T0]: Boolean

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

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  12. final def notify(): Unit

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  13. final def notifyAll(): Unit

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    AnyRef

  14. val partialEvaluations: Seq[NamedExpression]

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    A sequence of NamedExpressions that can be computed on partial data sets and are required to compute the finalEvaluation.

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

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  16. final def wait(): Unit

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    @throws( ... )

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

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

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Inherited from Serializable

Inherited from Serializable

Inherited from Product

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