[jira] [Created] (CALCITE-3323) Handle arbitrary/unknown functions that have ordinary syntax

["Ryan Fu (Jira)" <ji...@apache.org>]

Ryan Fu created CALCITE-3323:
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             Summary: Handle arbitrary/unknown functions that have ordinary syntax
                 Key: CALCITE-3323
                 URL: https://issues.apache.org/jira/browse/CALCITE-3323
             Project: Calcite
          Issue Type: New Feature
            Reporter: Ryan Fu


Add a strategy where if a function has ordinary function syntax and we don't recognize it we assume that it can take any argument types and returns a result of unknown type.

We will still need to change the parser to handle functions with non-standard syntax (e.g. DATEADD). And it's a good idea to explicitly add commonly used non-standard functions (e.g. MD5, CONCAT).”



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