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  1. Flink
  2. FLINK-3139

NULL values handling in Table API

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Details

    • Improvement
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • None
    • 1.1.0
    • Table SQL / API
    • None

    Description

      This is an umbrella task for NULL value handling in Table API.
      As the logical API for queries, Table API should support handling NULL values, NULL value is quite a common case during logical query, for example:

      1. Data source may miss column value in many cases("value missing", "value unknown", "value not applicable" .etc ).
      2. Some operators generate Null values on their own, like Outer Join/Cube/Rollup/Grouping Set, and so on. Null values handling in Table API is the prerequisite of these features.

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          is required by

          New Feature - A new feature of the product, which has yet to be developed. FLINK-2099 Add a SQL API

          • Major - Major loss of function.
          • Closed

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              Unassigned Unassigned
              chengxiang li Chengxiang Li
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              Dates

                Created:
                Updated:
                Resolved: