Class

org.apache.spark.sql.execution

Exchange

Related Doc: package execution

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case class Exchange(newPartitioning: Partitioning, child: SparkPlan) extends SparkPlan with UnaryNode with Product with Serializable

:: DeveloperApi :: Performs a shuffle that will result in the desired newPartitioning.

Annotations
@DeveloperApi()
Linear Supertypes
UnaryNode, SparkPlan, Serializable, Serializable, Logging, QueryPlan[SparkPlan], TreeNode[SparkPlan], Product, Equals, AnyRef, Any
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Inherited
  1. Exchange
  2. UnaryNode
  3. SparkPlan
  4. Serializable
  5. Serializable
  6. Logging
  7. QueryPlan
  8. TreeNode
  9. Product
  10. Equals
  11. AnyRef
  12. Any
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Visibility
  1. Public
  2. All

Instance Constructors

  1. new Exchange(newPartitioning: Partitioning, child: SparkPlan)

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Value Members

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

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

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    Definition Classes
    AnyRef → Any
  3. final def ==(arg0: Any): Boolean

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    Definition Classes
    AnyRef → Any
  4. def apply(number: Int): SparkPlan

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    Definition Classes
    TreeNode
  5. def argString: String

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    Definition Classes
    TreeNode
  6. def asCode: String

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    Definition Classes
    TreeNode
  7. final def asInstanceOf[T0]: T0

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    Definition Classes
    Any
  8. def canProcessSafeRows: Boolean

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    Specifies whether this operator is capable of processing Java-object-based Rows (i.e.

    Specifies whether this operator is capable of processing Java-object-based Rows (i.e. rows that are not UnsafeRows).

    Definition Classes
    ExchangeSparkPlan
  9. def canProcessUnsafeRows: Boolean

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    Specifies whether this operator is capable of processing UnsafeRows

    Specifies whether this operator is capable of processing UnsafeRows

    Definition Classes
    ExchangeSparkPlan
  10. val child: SparkPlan

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    Definition Classes
    Exchange → UnaryNode
  11. def children: Seq[SparkPlan]

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    Definition Classes
    UnaryNode → TreeNode
  12. def clone(): AnyRef

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    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  13. val codegenEnabled: Boolean

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    Definition Classes
    SparkPlan
  14. def collect[B](pf: PartialFunction[SparkPlan, B]): Seq[B]

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    Definition Classes
    TreeNode
  15. def collectFirst[B](pf: PartialFunction[SparkPlan, B]): Option[B]

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    Definition Classes
    TreeNode
  16. lazy val containsChild: Set[TreeNode[_]]

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    Definition Classes
    TreeNode
  17. def doExecute(): RDD[InternalRow]

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    Overridden by concrete implementations of SparkPlan.

    Overridden by concrete implementations of SparkPlan. Produces the result of the query as an RDD[InternalRow]

    Attributes
    protected
    Definition Classes
    ExchangeSparkPlan
  18. def doPrepare(): Unit

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    Overridden by concrete implementations of SparkPlan.

    Overridden by concrete implementations of SparkPlan. It is guaranteed to run before any execute of SparkPlan. This is helpful if we want to set up some state before executing the query, e.g., BroadcastHashJoin uses it to broadcast asynchronously.

    Note: the prepare method has already walked down the tree, so the implementation doesn't need to call children's prepare methods.

    Attributes
    protected
    Definition Classes
    SparkPlan
  19. final def eq(arg0: AnyRef): Boolean

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    Definition Classes
    AnyRef
  20. final def execute(): RDD[InternalRow]

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    Returns the result of this query as an RDD[InternalRow] by delegating to doExecute after adding query plan information to created RDDs for visualization.

    Returns the result of this query as an RDD[InternalRow] by delegating to doExecute after adding query plan information to created RDDs for visualization. Concrete implementations of SparkPlan should override doExecute instead.

    Definition Classes
    SparkPlan
  21. def executeCollect(): Array[Row]

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    Runs this query returning the result as an array.

    Runs this query returning the result as an array.

    Definition Classes
    SparkPlan
  22. def executeTake(n: Int): Array[Row]

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    Runs this query returning the first n rows as an array.

    Runs this query returning the first n rows as an array.

    This is modeled after RDD.take but never runs any job locally on the driver.

    Definition Classes
    SparkPlan
  23. def expressions: Seq[Expression]

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    Definition Classes
    QueryPlan
  24. def fastEquals(other: TreeNode[_]): Boolean

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    Definition Classes
    TreeNode
  25. def finalize(): Unit

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    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  26. def find(f: (SparkPlan) ⇒ Boolean): Option[SparkPlan]

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    Definition Classes
    TreeNode
  27. def flatMap[A](f: (SparkPlan) ⇒ TraversableOnce[A]): Seq[A]

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    Definition Classes
    TreeNode
  28. def foreach(f: (SparkPlan) ⇒ Unit): Unit

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    Definition Classes
    TreeNode
  29. def foreachUp(f: (SparkPlan) ⇒ Unit): Unit

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    Definition Classes
    TreeNode
  30. def generateTreeString(depth: Int, builder: StringBuilder): StringBuilder

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    Attributes
    protected
    Definition Classes
    TreeNode
  31. final def getClass(): Class[_]

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    Definition Classes
    AnyRef → Any
  32. def getNodeNumbered(number: MutableInt): SparkPlan

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    Attributes
    protected
    Definition Classes
    TreeNode
  33. def inputSet: AttributeSet

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    Definition Classes
    QueryPlan
  34. final def isInstanceOf[T0]: Boolean

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    Definition Classes
    Any
  35. def isTraceEnabled(): Boolean

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    Attributes
    protected
    Definition Classes
    Logging
  36. def log: Logger

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    Attributes
    protected
    Definition Classes
    Logging
  37. def logDebug(msg: ⇒ String, throwable: Throwable): Unit

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    Attributes
    protected
    Definition Classes
    Logging
  38. def logDebug(msg: ⇒ String): Unit

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    Attributes
    protected
    Definition Classes
    Logging
  39. def logError(msg: ⇒ String, throwable: Throwable): Unit

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    Attributes
    protected
    Definition Classes
    Logging
  40. def logError(msg: ⇒ String): Unit

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    Attributes
    protected
    Definition Classes
    Logging
  41. def logInfo(msg: ⇒ String, throwable: Throwable): Unit

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    Attributes
    protected
    Definition Classes
    Logging
  42. def logInfo(msg: ⇒ String): Unit

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    Attributes
    protected
    Definition Classes
    Logging
  43. def logName: String

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    Attributes
    protected
    Definition Classes
    Logging
  44. def logTrace(msg: ⇒ String, throwable: Throwable): Unit

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    Attributes
    protected
    Definition Classes
    Logging
  45. def logTrace(msg: ⇒ String): Unit

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    Attributes
    protected
    Definition Classes
    Logging
  46. def logWarning(msg: ⇒ String, throwable: Throwable): Unit

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    Attributes
    protected
    Definition Classes
    Logging
  47. def logWarning(msg: ⇒ String): Unit

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    Attributes
    protected
    Definition Classes
    Logging
  48. def makeCopy(newArgs: Array[AnyRef]): SparkPlan

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    Overridden make copy also propogates sqlContext to copied plan.

    Overridden make copy also propogates sqlContext to copied plan.

    Definition Classes
    SparkPlan → TreeNode
  49. def map[A](f: (SparkPlan) ⇒ A): Seq[A]

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    Definition Classes
    TreeNode
  50. def mapChildren(f: (SparkPlan) ⇒ SparkPlan): SparkPlan

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    Definition Classes
    TreeNode
  51. def missingInput: AttributeSet

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    Definition Classes
    QueryPlan
  52. final def ne(arg0: AnyRef): Boolean

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    Definition Classes
    AnyRef
  53. def newMutableProjection(expressions: Seq[Expression], inputSchema: Seq[Attribute]): () ⇒ MutableProjection

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    Attributes
    protected
    Definition Classes
    SparkPlan
  54. def newNaturalAscendingOrdering(dataTypes: Seq[DataType]): Ordering[InternalRow]

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    Creates a row ordering for the given schema, in natural ascending order.

    Creates a row ordering for the given schema, in natural ascending order.

    Attributes
    protected
    Definition Classes
    SparkPlan
  55. def newOrdering(order: Seq[SortOrder], inputSchema: Seq[Attribute]): Ordering[InternalRow]

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    Attributes
    protected
    Definition Classes
    SparkPlan
  56. val newPartitioning: Partitioning

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  57. def newPredicate(expression: Expression, inputSchema: Seq[Attribute]): (InternalRow) ⇒ Boolean

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    Attributes
    protected
    Definition Classes
    SparkPlan
  58. def newProjection(expressions: Seq[Expression], inputSchema: Seq[Attribute]): Projection

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    Attributes
    protected
    Definition Classes
    SparkPlan
  59. def nodeName: String

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    Definition Classes
    Exchange → TreeNode
  60. final def notify(): Unit

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

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    Definition Classes
    AnyRef
  62. def numberedTreeString: String

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    Definition Classes
    TreeNode
  63. val origin: Origin

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    Definition Classes
    TreeNode
  64. def otherCopyArgs: Seq[AnyRef]

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    Attributes
    protected
    Definition Classes
    TreeNode
  65. def output: Seq[Attribute]

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    Definition Classes
    Exchange → QueryPlan
  66. def outputOrdering: Seq[SortOrder]

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    Specifies how data is ordered in each partition.

    Specifies how data is ordered in each partition.

    Definition Classes
    SparkPlan
  67. def outputPartitioning: Partitioning

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    Specifies how data is partitioned across different nodes in the cluster.

    Specifies how data is partitioned across different nodes in the cluster.

    Definition Classes
    Exchange → UnaryNode → SparkPlan
  68. def outputSet: AttributeSet

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    Definition Classes
    QueryPlan
  69. def outputsUnsafeRows: Boolean

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    Specifies whether this operator outputs UnsafeRows

    Specifies whether this operator outputs UnsafeRows

    Definition Classes
    ExchangeSparkPlan
  70. final def prepare(): Unit

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    Prepare a SparkPlan for execution.

    Prepare a SparkPlan for execution. It's idempotent.

    Definition Classes
    SparkPlan
  71. def printSchema(): Unit

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    Definition Classes
    QueryPlan
  72. def references: AttributeSet

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    Definition Classes
    QueryPlan
  73. def requiredChildDistribution: Seq[Distribution]

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    Specifies any partition requirements on the input data for this operator.

    Specifies any partition requirements on the input data for this operator.

    Definition Classes
    SparkPlan
  74. def requiredChildOrdering: Seq[Seq[SortOrder]]

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    Specifies sort order for each partition requirements on the input data for this operator.

    Specifies sort order for each partition requirements on the input data for this operator.

    Definition Classes
    SparkPlan
  75. lazy val schema: StructType

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    Definition Classes
    QueryPlan
  76. def schemaString: String

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    Definition Classes
    QueryPlan
  77. def simpleString: String

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    Definition Classes
    QueryPlan → TreeNode
  78. def sparkContext: SparkContext

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    Attributes
    protected
    Definition Classes
    SparkPlan
  79. final val sqlContext: SQLContext

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    A handle to the SQL Context that was used to create this plan.

    A handle to the SQL Context that was used to create this plan. Since many operators need access to the sqlContext for RDD operations or configuration this field is automatically populated by the query planning infrastructure.

    Attributes
    protected[org.apache.spark]
    Definition Classes
    SparkPlan
  80. def statePrefix: String

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    Attributes
    protected
    Definition Classes
    QueryPlan
  81. def stringArgs: Iterator[Any]

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    Attributes
    protected
    Definition Classes
    TreeNode
  82. final def synchronized[T0](arg0: ⇒ T0): T0

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    Definition Classes
    AnyRef
  83. def toString(): String

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    Definition Classes
    TreeNode → AnyRef → Any
  84. def transform(rule: PartialFunction[SparkPlan, SparkPlan]): SparkPlan

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    Definition Classes
    TreeNode
  85. def transformAllExpressions(rule: PartialFunction[Expression, Expression]): Exchange.this.type

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    Definition Classes
    QueryPlan
  86. def transformChildren(rule: PartialFunction[SparkPlan, SparkPlan], nextOperation: (SparkPlan, PartialFunction[SparkPlan, SparkPlan]) ⇒ SparkPlan): SparkPlan

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    Attributes
    protected
    Definition Classes
    TreeNode
  87. def transformDown(rule: PartialFunction[SparkPlan, SparkPlan]): SparkPlan

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    Definition Classes
    TreeNode
  88. def transformExpressions(rule: PartialFunction[Expression, Expression]): Exchange.this.type

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    Definition Classes
    QueryPlan
  89. def transformExpressionsDown(rule: PartialFunction[Expression, Expression]): Exchange.this.type

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    Definition Classes
    QueryPlan
  90. def transformExpressionsUp(rule: PartialFunction[Expression, Expression]): Exchange.this.type

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    Definition Classes
    QueryPlan
  91. def transformUp(rule: PartialFunction[SparkPlan, SparkPlan]): SparkPlan

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    Definition Classes
    TreeNode
  92. def treeString: String

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    Definition Classes
    TreeNode
  93. val unsafeEnabled: Boolean

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    Definition Classes
    SparkPlan
  94. final def wait(): Unit

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

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  96. final def wait(arg0: Long): Unit

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  97. def withNewChildren(newChildren: Seq[SparkPlan]): SparkPlan

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    Definition Classes
    TreeNode

Inherited from UnaryNode

Inherited from SparkPlan

Inherited from Serializable

Inherited from Serializable

Inherited from Logging

Inherited from QueryPlan[SparkPlan]

Inherited from TreeNode[SparkPlan]

Inherited from Product

Inherited from Equals

Inherited from AnyRef

Inherited from Any

Ungrouped