Martijn Visser created FLINK-41476:
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Summary: Calling a procedure with primitive varargs fails with
ArrayStoreException
Key: FLINK-41476
URL: https://issues.apache.org/jira/browse/FLINK-41476
Project: Flink
Issue Type: Bug
Components: Table SQL / Planner
Reporter: Martijn Visser
Calling a procedure whose call method takes primitive varargs fails. For a
procedure with call(ProcedureContext context, double... d), CALL p(1.5e0,
2.5e0) fails with:
{code}
java.lang.ArrayStoreException: arraycopy: type mismatch: can not copy object
array[] into double[]
{code}
PlannerCallProcedureOperation#invokeCallMethod copies the converted arguments
into the varargs array with System.arraycopy, which only works for object
arrays. The same happens when the class also has call(ProcedureContext,
Integer, Integer): CALL p(1, 2) picks the varargs method instead of the exact
match and fails the same way.
We should fill primitive varargs element by element, and prefer a fixed-arity
method when one matches.
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