[jira] [Updated] (PARQUET-660) Writing Protobuf messages with extensions results in an error or data corruption.

["Julien Le Dem (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/PARQUET-660?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Julien Le Dem updated PARQUET-660:
----------------------------------
    Assignee: Jakub Kukul

> Writing Protobuf messages with extensions results in an error or data corruption.
> ---------------------------------------------------------------------------------
>
>                 Key: PARQUET-660
>                 URL: https://issues.apache.org/jira/browse/PARQUET-660
>             Project: Parquet
>          Issue Type: Bug
>          Components: parquet-mr
>    Affects Versions: 1.8.1
>            Reporter: Jakub Kukul
>            Assignee: Jakub Kukul
>             Fix For: 1.9.0
>
>
> Currently, in ProtoParquetWriter there's not any support for extended protobuf messages. An attempt to write a protobuf message with extension either:
> * Results in an uninformative error like this:
> {code}
> parquet.proto.ProtoWriteSupport: Cannot write message 
> YOUR_EXTENSION_TYPE cannot be cast to A_BASE_FIELD_TYPE : BASE_FIELD_NAME 
> {code}
> * Results in a data corruption, if an extension type is compatible with a base field type with a corresponding index.
> Imo there are two possible solutions:
>  
> 1. Ignore extension fields.
> 2. When an extension field is detected in a message, throw an informative error.



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