[jira] [Assigned] (DRILL-7518) Parquet INT64 Nullable Type Support

["Arina Ielchiieva (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/DRILL-7518?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Arina Ielchiieva reassigned DRILL-7518:
---------------------------------------

    Assignee: Arina Ielchiieva

> Parquet INT64 Nullable Type Support
> -----------------------------------
>
>                 Key: DRILL-7518
>                 URL: https://issues.apache.org/jira/browse/DRILL-7518
>             Project: Apache Drill
>          Issue Type: Bug
>    Affects Versions: 1.17.0
>         Environment: Tested on the apache/drill:1.17.0 docker image.
>            Reporter: David Severski
>            Assignee: Arina Ielchiieva
>            Priority: Major
>             Fix For: 1.18.0
>
>
> Querying a parquet file with fields of type INT64 generates an immediate error in the complex parquet reader with an error of "Unsupported nullable converted type INT_64 for primitive type INT64". Attempts to work around this via explicit CAST() and CONVERT_FROM() are unsuccessful. The suggestion from drill-users is that an implementation needs to be made at https://github.com/apache/drill/blob/9993fa3547b029db5fe33a2210fa6f07e8ac1990/exec/java-exec/src/main/java/org/apache/drill/exec/store/parquet/columnreaders/ColumnReaderFactory.java#L303.
>  
> If related, a similar INT32 type field in the same file exhibits this problem, but can be worked around via an explicit CAST() to INT.
>  
> At this time, I do not have a sanitized parquet file to submit as a reference example. :(
>  
> Reference thread on drill-users list: http://mail-archives.apache.org/mod_mbox/drill-user/202001.mbox/%3cCAJgUOA53LDKxqsH1fSVtJ+dk5421Eg4Aw4PaiM++8BfErxDvjQ@mail.gmail.com%3e



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