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Posted to dev@parquet.apache.org by "Sanjay Sharma (Jira)" <ji...@apache.org> on 2023/06/02 13:20:00 UTC

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

Sanjay Sharma created PARQUET-2305:
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             Summary: 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


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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