[jira] [Created] (FLINK-18286) Implement type inference for functions on composite types

[Shang Yuanchun (Jira)]

Dawid Wysakowicz created FLINK-18286:
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             Summary: Implement type inference for functions on composite types
                 Key: FLINK-18286
                 URL: https://issues.apache.org/jira/browse/FLINK-18286
             Project: Flink
          Issue Type: Sub-task
          Components: Table SQL / API, Table SQL / Planner
            Reporter: Dawid Wysakowicz
            Assignee: Dawid Wysakowicz


We should implement type inference for functions such as AT/ITEM/ELEMENT/GET.

Additionally we should make sure they are consistent in Table API & SQL.



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