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https://issues.apache.org/jira/browse/SPARK-40658?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17613806#comment-17613806
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Mohan Parthasarathy commented on SPARK-40658:
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Looking at the changes between proto2 and proto3 here:
[https://cloud.google.com/apis/design/proto3]
* Extensions and Group Syntax won't work from proto2
* When serializing, should we treat Optional fields any differently ?
Apart from that we don't support Any or OneOf as mentioned in the original PR
description.
[~rangadi] , [~sanysand...@gmail.com] do you see anything else ?
> Protobuf v2 & v3 support
> ------------------------
>
> Key: SPARK-40658
> URL: https://issues.apache.org/jira/browse/SPARK-40658
> Project: Spark
> Issue Type: Improvement
> Components: Structured Streaming
> Affects Versions: 3.3.0
> Reporter: Raghu Angadi
> Priority: Major
>
> We want to ensure Protobuf functions support both Protobuf version 2 and
> version 3 schemas (e.g. descriptor file or compiled classes with v2 and v3).
>
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