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      The design document around TypeInference already mentioned an InputTypesInference that enables the derivation of missing or incomplete input signatures. The Calcite equivalent is called SqlOperandTypeInference.

      For FLIP-65, we will need to implement those interfaces as the planner needs infer the DataType s out of logical types that come from the logical query. This is also beneficial to support the NULL literal in the future.

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              • Assignee:
                twalthr Timo Walther
                Reporter:
                twalthr Timo Walther
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