[CALCITE-2889] IndexOutOfBoundsException in EnumUtils#fromInternal when handling UDFs with varargs

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: core
• Labels: pull-request-available
• Assignee: Unassigned
• Reporter: Rui Wang
• Created: 03/Mar/19 07:26
• Updated: 25/May/19 16:04

Description

https://github.com/apache/calcite/blob/master/core/src/main/java/org/apache/calcite/adapter/enumerable/EnumUtils.java#L210

If "targetTypes" is from "method.getParameterTypes()" and if method's signature is "func(stirng ... args)", then "targetTypes" will contain one type "String[].class", but "expressions" could contain one than one element, so it throws IndexOutOfBoundsException.

Issue Links

• is related to: CALCITE-2772 Support varargs for user-defined functions (UDFs)
• links to: GitHub Pull Request #1083