Class

org.apache.spark.sql.execution

MapGroupsExec

Related Doc: package execution

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case class MapGroupsExec(func: (Any, Iterator[Any]) ⇒ TraversableOnce[Any], keyDeserializer: Expression, valueDeserializer: Expression, groupingAttributes: Seq[Attribute], dataAttributes: Seq[Attribute], outputObjAttr: Attribute, child: SparkPlan) extends SparkPlan with UnaryExecNode with ObjectProducerExec with Product with Serializable

Groups the input rows together and calls the function with each group and an iterator containing all elements in the group. The result of this function is flattened before being output.

Linear Supertypes
ObjectProducerExec, UnaryExecNode, SparkPlan, Serializable, Serializable, Logging, QueryPlan[SparkPlan], TreeNode[SparkPlan], Product, Equals, AnyRef, Any
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Inherited
  1. MapGroupsExec
  2. ObjectProducerExec
  3. UnaryExecNode
  4. SparkPlan
  5. Serializable
  6. Serializable
  7. Logging
  8. QueryPlan
  9. TreeNode
  10. Product
  11. Equals
  12. AnyRef
  13. Any
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Visibility
  1. Public
  2. All

Instance Constructors

  1. new MapGroupsExec(func: (Any, Iterator[Any]) ⇒ TraversableOnce[Any], keyDeserializer: Expression, valueDeserializer: Expression, groupingAttributes: Seq[Attribute], dataAttributes: Seq[Attribute], outputObjAttr: Attribute, 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. lazy val allAttributes: AttributeSeq

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    Definition Classes
    QueryPlan
  5. def apply(number: Int): SparkPlan

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    Definition Classes
    TreeNode
  6. def argString: String

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    Definition Classes
    TreeNode
  7. def asCode: String

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

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    Definition Classes
    Any
  9. lazy val canonicalized: SparkPlan

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    Attributes
    protected
    Definition Classes
    QueryPlan
  10. val child: SparkPlan

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    Definition Classes
    MapGroupsExec → UnaryExecNode
  11. def children: Seq[SparkPlan]

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    Definition Classes
    UnaryExecNode → TreeNode
  12. lazy val cleanArgs: Seq[Any]

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    Attributes
    protected
    Definition Classes
    QueryPlan
  13. def clone(): AnyRef

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

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

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    Definition Classes
    TreeNode
  18. val dataAttributes: Seq[Attribute]

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  19. 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
    MapGroupsExecSparkPlan
  20. def doExecuteBroadcast[T](): Broadcast[T]

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    Overridden by concrete implementations of SparkPlan.

    Overridden by concrete implementations of SparkPlan. Produces the result of the query as a broadcast variable.

    Attributes
    protected[org.apache.spark.sql]
    Definition Classes
    SparkPlan
  21. 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.

    This will only be called once, protected by this.

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

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

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    Returns the result of this query as an RDD[InternalRow] by delegating to doExecute after preparations.

    Returns the result of this query as an RDD[InternalRow] by delegating to doExecute after preparations.

    Concrete implementations of SparkPlan should override doExecute.

    Definition Classes
    SparkPlan
  24. final def executeBroadcast[T](): Broadcast[T]

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    Returns the result of this query as a broadcast variable by delegating to doExecuteBroadcast after preparations.

    Returns the result of this query as a broadcast variable by delegating to doExecuteBroadcast after preparations.

    Concrete implementations of SparkPlan should override doExecuteBroadcast.

    Definition Classes
    SparkPlan
  25. def executeCollect(): Array[InternalRow]

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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
  26. def executeCollectPublic(): Array[Row]

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    Runs this query returning the result as an array, using external Row format.

    Runs this query returning the result as an array, using external Row format.

    Definition Classes
    SparkPlan
  27. final def executeQuery[T](query: ⇒ T): T

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    Execute a query after preparing the query and adding query plan information to created RDDs for visualization.

    Execute a query after preparing the query and adding query plan information to created RDDs for visualization.

    Attributes
    protected
    Definition Classes
    SparkPlan
  28. def executeTake(n: Int): Array[InternalRow]

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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
  29. def executeToIterator(): Iterator[InternalRow]

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    Runs this query returning the result as an iterator of InternalRow.

    Runs this query returning the result as an iterator of InternalRow.

    Note: this will trigger multiple jobs (one for each partition).

    Definition Classes
    SparkPlan
  30. final def expressions: Seq[Expression]

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

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    Definition Classes
    TreeNode
  32. def finalize(): Unit

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

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

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

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

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    Definition Classes
    TreeNode
  37. val func: (Any, Iterator[Any]) ⇒ TraversableOnce[Any]

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  38. def generateTreeString(depth: Int, lastChildren: Seq[Boolean], builder: StringBuilder, verbose: Boolean, prefix: String): StringBuilder

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    Definition Classes
    TreeNode
  39. final def getClass(): Class[_]

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

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    Attributes
    protected
    Definition Classes
    TreeNode
  41. def getRelevantConstraints(constraints: Set[Expression]): Set[Expression]

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    Attributes
    protected
    Definition Classes
    QueryPlan
  42. val groupingAttributes: Seq[Attribute]

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  43. def hashCode(): Int

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    Definition Classes
    TreeNode → AnyRef → Any
  44. def initializeLogIfNecessary(isInterpreter: Boolean): Unit

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    Attributes
    protected
    Definition Classes
    Logging
  45. def innerChildren: Seq[QueryPlan[_]]

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    Attributes
    protected
    Definition Classes
    QueryPlan → TreeNode
  46. def inputSet: AttributeSet

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

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    Definition Classes
    Any
  48. def isTraceEnabled(): Boolean

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    Attributes
    protected
    Definition Classes
    Logging
  49. def jsonFields: List[JField]

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    Attributes
    protected
    Definition Classes
    TreeNode
  50. val keyDeserializer: Expression

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  51. def log: Logger

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

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

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

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

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

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

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    Attributes
    protected
    Definition Classes
    Logging
  58. def logName: String

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

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

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

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

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

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    Overridden make copy also propagates sqlContext to copied plan.

    Overridden make copy also propagates sqlContext to copied plan.

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

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

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    Definition Classes
    TreeNode
  66. def mapProductIterator[B](f: (Any) ⇒ B)(implicit arg0: ClassTag[B]): Array[B]

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    Attributes
    protected
    Definition Classes
    TreeNode
  67. def missingInput: AttributeSet

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

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    Definition Classes
    AnyRef
  69. def newMutableProjection(expressions: Seq[Expression], inputSchema: Seq[Attribute], useSubexprElimination: Boolean = false): MutableProjection

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    Attributes
    protected
    Definition Classes
    SparkPlan
  70. 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
  71. def newOrdering(order: Seq[SortOrder], inputSchema: Seq[Attribute]): Ordering[InternalRow]

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    Attributes
    protected
    Definition Classes
    SparkPlan
  72. def newPredicate(expression: Expression, inputSchema: Seq[Attribute]): (InternalRow) ⇒ Boolean

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    Attributes
    protected
    Definition Classes
    SparkPlan
  73. def nodeName: String

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    Definition Classes
    TreeNode
  74. final def notify(): Unit

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

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    Definition Classes
    AnyRef
  76. def numberedTreeString: String

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    Definition Classes
    TreeNode
  77. val origin: Origin

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

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

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    Definition Classes
    ObjectProducerExec → QueryPlan
  80. val outputObjAttr: Attribute

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    Definition Classes
    MapGroupsExecObjectProducerExec
  81. def outputObjectType: DataType

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    Definition Classes
    ObjectProducerExec
  82. 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
  83. 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
    UnaryExecNode → SparkPlan
  84. def outputSet: AttributeSet

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    Definition Classes
    QueryPlan
  85. final def prepare(): Unit

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    Prepare a SparkPlan for execution.

    Prepare a SparkPlan for execution. It's idempotent.

    Definition Classes
    SparkPlan
  86. def prepareSubqueries(): Unit

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    Finds scalar subquery expressions in this plan node and starts evaluating them.

    Finds scalar subquery expressions in this plan node and starts evaluating them. The list of subqueries are added to subqueryResults.

    Attributes
    protected
    Definition Classes
    SparkPlan
  87. def prettyJson: String

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    Definition Classes
    TreeNode
  88. def printSchema(): Unit

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    Definition Classes
    QueryPlan
  89. def producedAttributes: AttributeSet

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    Definition Classes
    ObjectProducerExec → QueryPlan
  90. def references: AttributeSet

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    Definition Classes
    QueryPlan
  91. 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
    MapGroupsExecSparkPlan
  92. 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
    MapGroupsExecSparkPlan
  93. def sameResult(plan: SparkPlan): Boolean

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    Definition Classes
    QueryPlan
  94. lazy val schema: StructType

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    Definition Classes
    QueryPlan
  95. def schemaString: String

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    Definition Classes
    QueryPlan
  96. def simpleString: String

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    Definition Classes
    QueryPlan → TreeNode
  97. def sparkContext: SparkContext

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    Attributes
    protected
    Definition Classes
    SparkPlan
  98. 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.

    Definition Classes
    SparkPlan
  99. def statePrefix: String

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

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    Attributes
    protected
    Definition Classes
    TreeNode
  101. val subexpressionEliminationEnabled: Boolean

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    Definition Classes
    SparkPlan
  102. def subqueries: Seq[SparkPlan]

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    Definition Classes
    QueryPlan
  103. final def synchronized[T0](arg0: ⇒ T0): T0

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    Definition Classes
    AnyRef
  104. def toJSON: String

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    Definition Classes
    TreeNode
  105. def toString(): String

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

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

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

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

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

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

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

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

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    Definition Classes
    TreeNode
  114. def treeString(verbose: Boolean): String

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    Definition Classes
    TreeNode
  115. def treeString: String

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    Definition Classes
    TreeNode
  116. def validConstraints: Set[Expression]

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    Attributes
    protected
    Definition Classes
    QueryPlan
  117. val valueDeserializer: Expression

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  118. def verboseString: String

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    Definition Classes
    QueryPlan → TreeNode
  119. final def wait(): Unit

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

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

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  122. def waitForSubqueries(): Unit

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    Blocks the thread until all subqueries finish evaluation and update the results.

    Blocks the thread until all subqueries finish evaluation and update the results.

    Attributes
    protected
    Definition Classes
    SparkPlan
  123. def withNewChildren(newChildren: Seq[SparkPlan]): SparkPlan

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    Definition Classes
    TreeNode

Inherited from ObjectProducerExec

Inherited from UnaryExecNode

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