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  1. Flink
  2. FLINK-6033

Support UNNEST query in the stream SQL API

    Details

    • Type: Improvement
    • Status: Closed
    • Priority: Major
    • Resolution: Implemented
    • Affects Version/s: None
    • Fix Version/s: 1.3.0
    • Component/s: Table API & SQL
    • Labels:
      None

      Description

      It would be nice to support the UNNEST keyword in the stream SQL API.
      The keyword is widely used in queries that relate to nested fields.

        Issue Links

          Activity

          Hide
          fhueske Fabian Hueske added a comment -

          Implemented with fe4e96a726dd32fb948db050b975312e120e2461

          Show
          fhueske Fabian Hueske added a comment - Implemented with fe4e96a726dd32fb948db050b975312e120e2461
          Hide
          wheat9 Haohui Mai added a comment -

          Discussed offline with Fabian Hueske – the proposed approach is to build on top of the user-define table function supported introduced in FLINK-4469, by adding a rule to transform the UNNEST keyword into the explode() function.

          Show
          wheat9 Haohui Mai added a comment - Discussed offline with Fabian Hueske – the proposed approach is to build on top of the user-define table function supported introduced in FLINK-4469 , by adding a rule to transform the UNNEST keyword into the explode() function.

            People

            • Assignee:
              wheat9 Haohui Mai
              Reporter:
              wheat9 Haohui Mai
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              Dates

              • Created:
                Updated:
                Resolved:

                Development