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    root
  • package org
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  • package apache
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  • package spark
    Definition Classes
    apache
  • package sql

    Allows the execution of relational queries, including those expressed in SQL using Spark.

    Allows the execution of relational queries, including those expressed in SQL using Spark.

    Definition Classes
    spark
  • package execution

    The physical execution component of Spark SQL.

    The physical execution component of Spark SQL. Note that this is a private package. All classes in catalyst are considered an internal API to Spark SQL and are subject to change between minor releases.

    Definition Classes
    sql
  • class QueryExecution extends Logging

    The primary workflow for executing relational queries using Spark.

    The primary workflow for executing relational queries using Spark. Designed to allow easy access to the intermediate phases of query execution for developers.

    While this is not a public class, we should avoid changing the function names for the sake of changing them, because a lot of developers use the feature for debugging.

    Definition Classes
    execution
  • debug

object debug

A special namespace for commands that can be used to debug query execution.

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

    Prints to stdout all the generated code found in this plan (i.e.

    Prints to stdout all the generated code found in this plan (i.e. the output of each WholeStageCodegen subtree).

  7. def codegenToSeq(): Seq[(String, String, ByteCodeStats)]

    Get WholeStageCodegenExec subtrees and the codegen in a query plan

    Get WholeStageCodegenExec subtrees and the codegen in a query plan

    returns

    Sequence of WholeStageCodegen subtrees and corresponding codegen

  8. final def eq(arg0: AnyRef): Boolean
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  9. def equals(arg0: Any): Boolean
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  10. def finalize(): Unit
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  11. final def getClass(): Class[_]
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  13. final def isInstanceOf[T0]: Boolean
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  14. final def ne(arg0: AnyRef): Boolean
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  15. final def notify(): Unit
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  16. final def notifyAll(): Unit
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  17. final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
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  18. def toFile(path: String, maxFields: Int = Int.MaxValue, explainMode: Option[String] = None): Unit

    Dumps debug information about query execution into the specified file.

    Dumps debug information about query execution into the specified file.

    path

    path of the file the debug info is written to.

    maxFields

    maximum number of fields converted to string representation.

    explainMode

    the explain mode to be used to generate the string representation of the plan.

  19. def toString(): String
    Definition Classes
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  20. final def wait(): Unit
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  21. final def wait(arg0: Long, arg1: Int): Unit
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  22. final def wait(arg0: Long): Unit
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