org.apache.spark.sql

execution

package execution

:: DeveloperApi :: An execution engine for relational query plans that runs on top Spark and returns RDDs.

Note that the operators in this package are created automatically by a query planner using a SQLContext and are not intended to be used directly by end users of Spark SQL. They are documented here in order to make it easier for others to understand the performance characteristics of query plans that are generated by Spark SQL.

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  1. case class Aggregate(partial: Boolean, groupingExpressions: Seq[Expression], aggregateExpressions: Seq[NamedExpression], child: SparkPlan) extends SparkPlan with UnaryNode with Product with Serializable

    :: DeveloperApi :: Groups input data by groupingExpressions and computes the aggregateExpressions for each group.

  2. case class AggregateEvaluation(schema: Seq[Attribute], initialValues: Seq[Expression], update: Seq[Expression], result: Expression) extends Product with Serializable

  3. case class BatchPythonEvaluation(udf: PythonUDF, output: Seq[Attribute], child: SparkPlan) extends SparkPlan with Product with Serializable

    :: DeveloperApi :: Uses PythonRDD to evaluate a PythonUDF, one partition of tuples at a time.

  4. case class BroadcastHashJoin(leftKeys: Seq[Expression], rightKeys: Seq[Expression], buildSide: BuildSide, left: SparkPlan, right: SparkPlan) extends SparkPlan with BinaryNode with HashJoin with Product with Serializable

    :: DeveloperApi :: Performs an inner hash join of two child relations.

  5. case class BroadcastNestedLoopJoin(left: SparkPlan, right: SparkPlan, buildSide: BuildSide, joinType: JoinType, condition: Option[Expression]) extends SparkPlan with BinaryNode with Product with Serializable

    :: DeveloperApi ::

  6. sealed abstract class BuildSide extends AnyRef

    Annotations
    @DeveloperApi()
  7. case class CacheCommand(tableName: String, doCache: Boolean)(context: SQLContext) extends SparkPlan with LeafNode with Command with Product with Serializable

    :: DeveloperApi ::

  8. case class CartesianProduct(left: SparkPlan, right: SparkPlan) extends SparkPlan with BinaryNode with Product with Serializable

    :: DeveloperApi ::

  9. trait Command extends AnyRef

  10. case class DescribeCommand(child: SparkPlan, output: Seq[Attribute])(context: SQLContext) extends SparkPlan with LeafNode with Command with Product with Serializable

    :: DeveloperApi ::

  11. case class Distinct(partial: Boolean, child: SparkPlan) extends SparkPlan with UnaryNode with Product with Serializable

    :: DeveloperApi :: Computes the set of distinct input rows using a HashSet.

  12. case class EvaluatePython(udf: PythonUDF, child: LogicalPlan) extends catalyst.plans.logical.UnaryNode with Product with Serializable

    :: DeveloperApi :: Evaluates a PythonUDF, appending the result to the end of the input tuple.

  13. case class Except(left: SparkPlan, right: SparkPlan) extends SparkPlan with BinaryNode with Product with Serializable

    :: DeveloperApi :: Returns a table with the elements from left that are not in right using the built-in spark subtract function.

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

    :: DeveloperApi ::

  15. case class ExistingRdd(output: Seq[Attribute], rdd: RDD[catalyst.expressions.Row]) extends SparkPlan with LeafNode with Product with Serializable

    :: DeveloperApi ::

  16. case class ExplainCommand(logicalPlan: LogicalPlan, output: Seq[Attribute], extended: Boolean)(context: SQLContext) extends SparkPlan with LeafNode with Command with Product with Serializable

    An explain command for users to see how a command will be executed.

  17. case class Filter(condition: Expression, child: SparkPlan) extends SparkPlan with UnaryNode with Product with Serializable

    :: DeveloperApi ::

  18. case class Generate(generator: Generator, join: Boolean, outer: Boolean, child: SparkPlan) extends SparkPlan with UnaryNode with Product with Serializable

    :: DeveloperApi :: Applies a Generator to a stream of input rows, combining the output of each into a new stream of rows.

  19. case class GeneratedAggregate(partial: Boolean, groupingExpressions: Seq[Expression], aggregateExpressions: Seq[NamedExpression], child: SparkPlan) extends SparkPlan with UnaryNode with Product with Serializable

    :: DeveloperApi :: Alternate version of aggregation that leverages projection and thus code generation.

  20. trait HashJoin extends AnyRef

  21. case class HashOuterJoin(leftKeys: Seq[Expression], rightKeys: Seq[Expression], joinType: JoinType, condition: Option[Expression], left: SparkPlan, right: SparkPlan) extends SparkPlan with BinaryNode with Product with Serializable

    :: DeveloperApi :: Performs a hash based outer join for two child relations by shuffling the data using the join keys.

  22. case class Intersect(left: SparkPlan, right: SparkPlan) extends SparkPlan with BinaryNode with Product with Serializable

    :: DeveloperApi :: Returns the rows in left that also appear in right using the built in spark intersection function.

  23. case class LeftSemiJoinBNL(streamed: SparkPlan, broadcast: SparkPlan, condition: Option[Expression]) extends SparkPlan with BinaryNode with Product with Serializable

    :: DeveloperApi :: Using BroadcastNestedLoopJoin to calculate left semi join result when there's no join keys for hash join.

  24. case class LeftSemiJoinHash(leftKeys: Seq[Expression], rightKeys: Seq[Expression], left: SparkPlan, right: SparkPlan) extends SparkPlan with BinaryNode with HashJoin with Product with Serializable

    :: DeveloperApi :: Build the right table's join keys into a HashSet, and iteratively go through the left table, to find the if join keys are in the Hash set.

  25. case class Limit(limit: Int, child: SparkPlan) extends SparkPlan with UnaryNode with Product with Serializable

    :: DeveloperApi :: Take the first limit elements.

  26. case class OutputFaker(output: Seq[Attribute], child: SparkPlan) extends SparkPlan with Product with Serializable

    :: DeveloperApi :: A plan node that does nothing but lie about the output of its child.

  27. case class Project(projectList: Seq[NamedExpression], child: SparkPlan) extends SparkPlan with UnaryNode with Product with Serializable

    :: DeveloperApi ::

  28. class QueryExecutionException extends Exception

  29. case class Sample(fraction: Double, withReplacement: Boolean, seed: Long, child: SparkPlan) extends SparkPlan with UnaryNode with Product with Serializable

    :: DeveloperApi ::

  30. case class SetCommand(key: Option[String], value: Option[String], output: Seq[Attribute])(context: SQLContext) extends SparkPlan with LeafNode with Command with Logging with Product with Serializable

    :: DeveloperApi ::

  31. case class ShuffledHashJoin(leftKeys: Seq[Expression], rightKeys: Seq[Expression], buildSide: BuildSide, left: SparkPlan, right: SparkPlan) extends SparkPlan with BinaryNode with HashJoin with Product with Serializable

    :: DeveloperApi :: Performs an inner hash join of two child relations by first shuffling the data using the join keys.

  32. case class Sort(sortOrder: Seq[SortOrder], global: Boolean, child: SparkPlan) extends SparkPlan with UnaryNode with Product with Serializable

    :: DeveloperApi ::

  33. case class SparkLogicalPlan(alreadyPlanned: SparkPlan)(sqlContext: SQLContext) extends LogicalPlan with MultiInstanceRelation with Product with Serializable

    :: DeveloperApi :: Allows already planned SparkQueries to be linked into logical query plans.

  34. abstract class SparkPlan extends QueryPlan[SparkPlan] with Logging with Serializable

    :: DeveloperApi ::

  35. case class TakeOrdered(limit: Int, sortOrder: Seq[SortOrder], child: SparkPlan) extends SparkPlan with UnaryNode with Product with Serializable

    :: DeveloperApi :: Take the first limit elements as defined by the sortOrder.

  36. case class Union(children: Seq[SparkPlan]) extends SparkPlan with Product with Serializable

    :: DeveloperApi ::

Value Members

  1. object BuildLeft extends BuildSide with Product with Serializable

    Annotations
    @DeveloperApi()
  2. object BuildRight extends BuildSide with Product with Serializable

    Annotations
    @DeveloperApi()
  3. object ExistingRdd extends Serializable

    :: DeveloperApi ::

  4. object SparkPlan extends Serializable

  5. package debug

    :: DeveloperApi :: Contains methods for debugging query execution.

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