[jira] [Updated] (ARROW-2677) Missing pyarrow ZSTD support for Parquet

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

     [ https://issues.apache.org/jira/browse/ARROW-2677?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

ASF GitHub Bot updated ARROW-2677:
----------------------------------
    Labels: pull-request-available  (was: )

> Missing pyarrow ZSTD support for Parquet
> ----------------------------------------
>
>                 Key: ARROW-2677
>                 URL: https://issues.apache.org/jira/browse/ARROW-2677
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: Python
>    Affects Versions: 0.9.0
>            Reporter: William Lee
>            Priority: Major
>              Labels: pull-request-available
>
> It seems like in the python/pyarrow/_parquet.pyx file there's a check for the supported compression scheme:
> {code}
> cdef int check_compression_name(name) except -1:
>     if name.upper() not in ['NONE', 'SNAPPY', 'GZIP', 'LZO', 'BROTLI', 'LZ4']:
>         raise ArrowException("Unsupported compression: " + name)
>     return 0{code}
> which does not include ZSTD (Zstandard).  From my understanding it should be supported in the underlying c++ library already.  Is it possible to add that support?
>  



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