Packages

case class OptimizeLocalShuffleReader(conf: SQLConf) extends Rule[SparkPlan] with Product with Serializable

A rule to optimize the shuffle reader to local reader iff no additional shuffles will be introduced: 1. if the input plan is a shuffle, add local reader directly as we can never introduce extra shuffles in this case. 2. otherwise, add local reader to the probe side of broadcast hash join and then run EnsureRequirements to check whether additional shuffle introduced. If introduced, we will revert all the local readers.

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  1. OptimizeLocalShuffleReader
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Instance Constructors

  1. new OptimizeLocalShuffleReader(conf: SQLConf)

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
    Definition Classes
    AnyRef → Any
  4. def apply(plan: SparkPlan): SparkPlan
    Definition Classes
    OptimizeLocalShuffleReader → Rule
  5. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  6. def clone(): AnyRef
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... ) @native()
  7. val conf: SQLConf
  8. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  9. def finalize(): Unit
    Attributes
    protected[lang]
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    @throws( classOf[java.lang.Throwable] )
  10. final def getClass(): Class[_]
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    @native()
  11. def initializeLogIfNecessary(isInterpreter: Boolean, silent: Boolean): Boolean
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    protected
    Definition Classes
    Logging
  12. def initializeLogIfNecessary(isInterpreter: Boolean): Unit
    Attributes
    protected
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    Logging
  13. final def isInstanceOf[T0]: Boolean
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  14. def isTraceEnabled(): Boolean
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    protected
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    Logging
  15. def log: Logger
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    Logging
  16. def logDebug(msg: ⇒ String, throwable: Throwable): Unit
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  17. def logDebug(msg: ⇒ String): Unit
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    Logging
  18. def logError(msg: ⇒ String, throwable: Throwable): Unit
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  19. def logError(msg: ⇒ String): Unit
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    protected
    Definition Classes
    Logging
  20. def logInfo(msg: ⇒ String, throwable: Throwable): Unit
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  21. def logInfo(msg: ⇒ String): Unit
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  22. def logName: String
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    Definition Classes
    Logging
  23. def logTrace(msg: ⇒ String, throwable: Throwable): Unit
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    Logging
  24. def logTrace(msg: ⇒ String): Unit
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  25. def logWarning(msg: ⇒ String, throwable: Throwable): Unit
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  26. def logWarning(msg: ⇒ String): Unit
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  27. final def ne(arg0: AnyRef): Boolean
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  28. final def notify(): Unit
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    @native()
  29. final def notifyAll(): Unit
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    @native()
  30. val ruleName: String
    Definition Classes
    Rule
  31. final def synchronized[T0](arg0: ⇒ T0): T0
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  32. final def wait(): Unit
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    @throws( ... )
  33. final def wait(arg0: Long, arg1: Int): Unit
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    @throws( ... )
  34. final def wait(arg0: Long): Unit
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