amaliujia commented on code in PR #38374:
URL: https://github.com/apache/spark/pull/38374#discussion_r1003781192
##########
connector/connect/src/main/protobuf/spark/connect/base.proto:
##########
@@ -51,6 +52,12 @@ message Request {
message UserContext {
string user_id = 1;
string user_name = 2;
+
+ // To extend the existing user context message that is used to identify
incoming requests,
+ // Spark Connect leverages the Any protobuf type that can be used to
inject arbitrary other
+ // messages into this message. Extensions are stored as a `repeated` type
to be able to
+ // handle multiple active extensions.
+ repeated google.protobuf.Any extensions = 999;
Review Comment:
I see. Makes sense.
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