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  1. Spark
  2. SPARK-24932

Allow update mode for streaming queries with join

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Details

    • Improvement
    • Status: Resolved
    • Major
    • Resolution: Incomplete
    • 2.3.0, 2.3.1
    • None
    • Structured Streaming

    Description

      In issue SPARK-19140 we supported update output mode for non-aggregation streaming queries. This should also be applied to streaming join to keep semantic consistent.

      PS. Streaming join feature is added after SPARK-19140.

      When using update output mode the join will works exactly as append mode. However, for example, this will allow user to run an aggregation-after-join query in update mode in order to get a more real-time result output.

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          is related to

          Improvement - An improvement or enhancement to an existing feature or task. SPARK-19140 Allow update mode for non-aggregation streaming queries

          • Major - Major loss of function.
          • Resolved
          links to

          Pull request #21890 [Github] Pull Request #21890 (fuyufjh)

          Web Link GitHub Pull Request #21890

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              Unassigned Unassigned
              fuyufjh Eric Fu
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              Dates

                Created:
                Updated:
                Resolved: