Uploaded image for project: 'Spark'
  1. Spark
  2. SPARK-6116 DataFrame API improvement umbrella ticket (Spark 1.5)
  3. SPARK-8300

DataFrame hint for broadcast join

Attach filesAttach ScreenshotVotersWatch issueWatchersLinkCloneUpdate Comment AuthorReplace String in CommentUpdate Comment VisibilityDelete Comments
    XMLWordPrintableJSON

    Details

    • Type: Sub-task
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 1.5.0
    • Component/s: SQL
    • Labels:
      None
    • Target Version/s:
    • Sprint:
      Spark 1.5 doc/QA sprint

      Description

      It is not always possible to have perfect cardinality estimation. We should allow users to give hint to the optimizer to do broadcast join.

        Attachments

          Activity
          $i18n.getText('security.level.explanation', $currentSelection) Viewable by All Users
          Cancel

            People

            • Assignee:
              rxin Reynold Xin
              Reporter:
              rxin Reynold Xin
              Shepherd:
              Michael Armbrust

              Dates

              • Created:
                Updated:
                Resolved:

                Agile

                  Issue deployment