indigophox commented on code in PR #34817:
URL: https://github.com/apache/arrow/pull/34817#discussion_r1383656978
##########
format/Flight.proto:
##########
@@ -503,3 +504,100 @@ message FlightData {
message PutResult {
bytes app_metadata = 1;
}
+
+/*
+ * Request message for the "Close Session" action.
+ *
+ * The exiting session is referenced via a cookie header.
+ */
+message CloseSessionRequest {
+ option (experimental) = true;
+}
+
+/*
+ * The result of closing a session.
+ *
+ * The result should be wrapped in a google.protobuf.Any message.
+ */
+message CloseSessionResult {
+ option (experimental) = true;
+
+ enum Status {
+ // The session close status is unknown. Servers should avoid using
+ // this value (send a NOT_FOUND error if the requested query is
+ // not known). Clients can retry the request.
+ CLOSE_RESULT_UNSPECIFIED = 0;
+ // The session close request is complete. Subsequent requests with
+ // a NOT_FOUND error.
+ CLOSE_RESULT_CLOSED = 1;
+ // The session close request is in progress. The client may retry
+ // the close request.
+ CLOSE_RESULT_CLOSING = 2;
+ // The session is not closeable. The client should not retry the
+ // close request.
+ CLOSE_RESULT_NOT_CLOSEABLE = 3;
+ }
+
+ Status status = 1;
+}
+
+message SessionOptionValue {
+ option (experimental) = true;
+
+ message StringListValue {
+ repeated string values = 1;
+ }
+
+ oneof option_value {
+ string string_value = 1;
+ bool bool_value = 2;
+ sfixed32 int32_value = 3;
+ sfixed64 int64_value = 4;
+ float float_value = 5;
+ double double_value = 6;
+ StringListValue string_list_value = 7;
+ }
+}
+
+message SetSessionOptionsRequest {
+ option (experimental) = true;
+
+ map<string, SessionOptionValue> session_options = 1;
+}
+
+message SetSessionOptionsResult {
+ option (experimental) = true;
+
+ enum Status {
+ // The status of setting the option is unknown. Servers should avoid using
+ // this value (send a NOT_FOUND error if the requested query is
+ // not known). Clients can retry the request.
+ SET_SESSION_OPTION_RESULT_UNSPECIFIED = 0;
+ // The session option setting completed successfully.
+ SET_SESSION_OPTION_RESULT_OK = 1;
+ // The given session option name was an alias for another option name.
+ SET_SESSION_OPTION_RESULT_OK_MAPPED = 2;
Review Comment:
When (as with lots of software) an option might have more than one common
name due e.g. to how server software evolved, e.g. we might be looking at
"catalog" and "project" being interchangeable, where one would get mapped to
the canonical one and then GetSessionOptions would return the value under that
key rather than the one it was set via.
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