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  1. Flink
  2. FLINK-12251 Rework the Table API & SQL type system
  3. FLINK-17484

[FLIP-154] Enable type coercion

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    • Sub-task
    • Status: Open
    • Major
    • Resolution: Unresolved
    • None
    • None
    • Table SQL / API

    Description

      Calcite supports better inference for untyped NULL literals by enabling type coercion. This is currently still disabled in Flink SQL. We should think about enabling it. A first research around this topic has shown that this feature is still experimental. Maybe we only support a custom type coercion.

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          is duplicated by

          Bug - A problem which impairs or prevents the functions of the product. FLINK-18234 Implicit type conversion in join condition

          • Not a Priority -
          • Closed

          New Feature - A new feature of the product, which has yet to be developed. FLINK-27795 SqlValidatorException when insert null value

          • Major - Major loss of function.
          • Closed

          Improvement - An improvement or enhancement to an existing feature or task. FLINK-23288 Inserting (1.378593404E9) (0.6047707965147558) to a double type, it will generate CodeGenException

          • Major - Major loss of function.
          • Closed

          Improvement - An improvement or enhancement to an existing feature or task. FLINK-28132 Should we remove type validations when using lookup-key join ?

          • Major - Major loss of function.
          • Closed

          Improvement - An improvement or enhancement to an existing feature or task. FLINK-32363 calcite 1.21 supports type coercion but flink don't enable it in validate

          • Major - Major loss of function.
          • Closed

          Improvement - An improvement or enhancement to an existing feature or task. FLINK-24914 Support implicit type conversion in SQL like "select int_field = varchar_field"

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Closed
          mentioned in

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              Unassigned Unassigned
              twalthr Timo Walther
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              Dates

                Created:
                Updated: