dianfu commented on a change in pull request #9858: [FLINK-14208][python]
Optimize Python UDFs with parameters of constant values
URL: https://github.com/apache/flink/pull/9858#discussion_r332886468
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File path: flink-python/pyflink/proto/flink-fn-execution.proto
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@@ -26,10 +26,15 @@ option java_outer_classname = "FlinkFnApi";
// User-defined function definition. It supports chaining functions, that's,
the execution
// result of one user-defined function as the input of another user-defined
function.
message UserDefinedFunction {
+ message Constant {
+ bytes value = 1;
+ }
+
message Input {
oneof input {
UserDefinedFunction udf = 1;
int32 inputOffset = 2;
+ Constant inputConstant = 3;
Review comment:
What about `bytes inputConstant = 3;`? Then we can avoid define message
Constant.
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