[CALCITE-3195] Handle UDF that throws checked exceptions in enumerable code generator

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.21.0
• Component/s: core, piglet
• Labels: pull-request-available
• Assignee: Feng Zhu
• Reporter: Khai Tran
• Created: 13/Jul/19 00:29
• Updated: 10/Sep/19 21:37
• Resolved: 24/Jul/19 15:03

Description

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.

Issue Links

• is related to: CALCITE-3122 Convert Pig Latin scripts into Calcite logical plans
• links to: GitHub Pull Request #1319
• links to: GitHub Pull Request #1319