lostluck commented on a change in pull request #16923:
URL: https://github.com/apache/beam/pull/16923#discussion_r813364522
##########
File path: model/pipeline/src/main/proto/beam_runner_api.proto
##########
@@ -1081,6 +1081,14 @@ message StandardCoders {
// Components: the user key coder.
// Experimental.
SHARDED_KEY = 15 [(beam_urn) = "beam:coder:sharded_key:v1"];
+
+ //Wraps a coder of a potentially null value
+ //
+ // A Nullable coder encodes nullable values of wrapped coder value that
does
+ // not tolerate null values. A Nullable coder uses exactly 1 byte per entry
+ // to indicate whether the value is null, then adds the encoding of the
+ // inner coder for non-null values.
Review comment:
+1
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: [email protected]
For queries about this service, please contact Infrastructure at:
[email protected]
