org.apache.spark.sql.catalyst.expressions

SplitEvaluation

Related Doc: package expressions

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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Serializable, Serializable, Product, Equals, AnyRef, Any
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Instance Constructors

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

    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

    Definition Classes
    AnyRef → Any
  2. final def ##(): Int

    Definition Classes
    AnyRef → Any
  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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    Annotations
    @throws( ... )
  6. final def eq(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef
  7. val finalEvaluation: Expression

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

  8. def finalize(): Unit

    Attributes
    protected[java.lang]
    Definition Classes
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    @throws( classOf[java.lang.Throwable] )
  9. final def getClass(): Class[_]

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    AnyRef → Any
  10. final def isInstanceOf[T0]: Boolean

    Definition Classes
    Any
  11. final def ne(arg0: AnyRef): Boolean

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    AnyRef
  12. final def notify(): Unit

    Definition Classes
    AnyRef
  13. final def notifyAll(): Unit

    Definition Classes
    AnyRef
  14. val partialEvaluations: Seq[NamedExpression]

    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

    Definition Classes
    AnyRef
  16. final def wait(): Unit

    Definition Classes
    AnyRef
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    @throws( ... )
  17. final def wait(arg0: Long, arg1: Int): Unit

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

    Definition Classes
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    @throws( ... )

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