Class

org.apache.spark.sql.catalyst.planning

GenericStrategy

Related Doc: package planning

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abstract class GenericStrategy[PhysicalPlan <: TreeNode[PhysicalPlan]] extends internal.Logging

Given a LogicalPlan, returns a list of PhysicalPlans that can be used for execution. If this strategy does not apply to the give logical operation then an empty list should be returned.

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Instance Constructors

  1. new GenericStrategy()

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Abstract Value Members

  1. abstract def apply(plan: LogicalPlan): Seq[PhysicalPlan]

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  2. abstract def planLater(plan: LogicalPlan): PhysicalPlan

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    Returns a placeholder for a physical plan that executes plan.

    Returns a placeholder for a physical plan that executes plan. This placeholder will be filled in automatically by the QueryPlanner using the other execution strategies that are available.

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Concrete Value Members

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

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

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  7. def equals(arg0: Any): Boolean

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  8. def finalize(): Unit

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

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  10. def hashCode(): Int

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  11. def initializeLogIfNecessary(isInterpreter: Boolean, silent: Boolean = false): Boolean

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    Logging
  12. def initializeLogIfNecessary(isInterpreter: Boolean): Unit

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  13. final def isInstanceOf[T0]: Boolean

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  14. def isTraceEnabled(): Boolean

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  15. def log: Logger

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  16. def logDebug(msg: ⇒ String, throwable: Throwable): Unit

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  17. def logDebug(msg: ⇒ String): Unit

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  18. def logError(msg: ⇒ String, throwable: Throwable): Unit

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    Logging
  19. def logError(msg: ⇒ String): Unit

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  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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  23. def logTrace(msg: ⇒ String, throwable: Throwable): Unit

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  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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  29. final def notifyAll(): Unit

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

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  31. def toString(): String

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  32. final def wait(): Unit

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

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

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Inherited from internal.Logging

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