zhenlineo commented on code in PR #41129:
URL: https://github.com/apache/spark/pull/41129#discussion_r1198063524
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connector/connect/common/src/main/protobuf/spark/connect/commands.proto:
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@@ -216,6 +216,7 @@ message WriteStreamOperationStart {
message StreamingForeachWriter {
oneof writer {
PythonUDF python_writer = 1;
+ ScalarScalaUDF scala_writer = 2;
Review Comment:
Yeah, but feel this adds more layers to your design. Do you expect to expand
the writer to be more than bytes? Would you add more fields in the UDFs or in
this StreamingForeachWriter?
If you plan to add in StreamingForeachWriter, then it does not matter too
much if you use UDF or bytes here.
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