org.apache.spark.sql.catalyst.planning

QueryPlanner

abstract class QueryPlanner[PhysicalPlan <: TreeNode[PhysicalPlan]] extends AnyRef

Abstract class for transforming LogicalPlans into physical plans. Child classes are responsible for specifying a list of Strategy objects that each of which can return a list of possible physical plan options. If a given strategy is unable to plan all of the remaining operators in the tree, it can call planLater, which returns a placeholder object that will be filled in using other available strategies.

TODO: RIGHT NOW ONLY ONE PLAN IS RETURNED EVER... PLAN SPACE EXPLORATION WILL BE IMPLEMENTED LATER.

PhysicalPlan

The type of physical plan produced by this QueryPlanner

Linear Supertypes
AnyRef, Any
Ordering
  1. Alphabetic
  2. By inheritance
Inherited
  1. QueryPlanner
  2. AnyRef
  3. Any
  1. Hide All
  2. Show all
Learn more about member selection
Visibility
  1. Public
  2. All

Instance Constructors

  1. new QueryPlanner()

Abstract Value Members

  1. abstract def strategies: Seq[GenericStrategy[PhysicalPlan]]

    A list of execution strategies that can be used by the planner

Concrete 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: LogicalPlan): Iterator[PhysicalPlan]

  5. final def asInstanceOf[T0]: T0

    Definition Classes
    Any

  6. def clone(): AnyRef

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

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

    Definition Classes
    AnyRef

  8. def equals(arg0: Any): Boolean

    Definition Classes
    AnyRef → Any

  9. def finalize(): Unit

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )

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

    Definition Classes
    AnyRef → Any

  11. def hashCode(): Int

    Definition Classes
    AnyRef → Any

  12. final def isInstanceOf[T0]: Boolean

    Definition Classes
    Any

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

    Definition Classes
    AnyRef

  14. final def notify(): Unit

    Definition Classes
    AnyRef

  15. final def notifyAll(): Unit

    Definition Classes
    AnyRef

  16. def planLater(plan: LogicalPlan): PhysicalPlan

    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.

    Attributes
    protected

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

    Definition Classes
    AnyRef

  18. def toString(): String

    Definition Classes
    AnyRef → Any

  19. final def wait(): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

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

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

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

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

Inherited from AnyRef

Inherited from Any

Ungrouped