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  1. Calcite
  2. CALCITE-3195

Handle UDF that throws checked exceptions in enumerable code generator

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      Current auto-generated code cannot handle UDFs that throws checked exception, so the auto-generated code fails to compile.

      In piglet, the PigUDFWrapper class is a workaround for handling IOException from some Pig UDFs.

      Need to fix the codegen engine, then remove PigUDFWrapper class.

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            donnyzone Feng Zhu
            khaitran Khai Tran
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