[jira] [Commented] (PARQUET-2305) Allow Parquet to Proto conversion even though Target Schema has less fields

["ASF GitHub Bot (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/PARQUET-2305?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17728740#comment-17728740 ] 

ASF GitHub Bot commented on PARQUET-2305:
-----------------------------------------

tddfan commented on PR #1102:
URL: https://github.com/apache/parquet-mr/pull/1102#issuecomment-1573730431

   > @tddfan Thanks for the fix. Would you please create a JIRA issue and link it to the title?
   
   Thanks for the guidance. I have created jira and put this PR title. Please let me know if anything else is needed.




> Allow Parquet to Proto conversion even though Target Schema has less fields
> ---------------------------------------------------------------------------
>
>                 Key: PARQUET-2305
>                 URL: https://issues.apache.org/jira/browse/PARQUET-2305
>             Project: Parquet
>          Issue Type: Improvement
>          Components: parquet-protobuf
>            Reporter: Sanjay Sharma
>            Priority: Major
>
> If Parquet has any field which has been removed from the schema and Parquet to Proto conversion happens, it errors out due to Unknown fields. There could be some scenarios that we want to still convert PARQUET into the target proto schema object which has lesser fields.
> If specified "ignoreUnknownFields" as an argument, this should allow the conversion which ignore fields it can't convert and not error out.
> Similar functionality exist in [https://github.com/protocolbuffers/protobuf/blob/main/java/util/src/main/java/com/google/protobuf/util/JsonFormat.java] with field "ignoringUnknownFields"



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