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Posted to dev@parquet.apache.org by "Wes McKinney (JIRA)" <ji...@apache.org> on 2018/08/23 14:22:00 UTC

[jira] [Updated] (PARQUET-1403) [C++] Coerce Arrow half-precision float to float32

     [ https://issues.apache.org/jira/browse/PARQUET-1403?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Wes McKinney updated PARQUET-1403:
----------------------------------
    Summary: [C++] Coerce Arrow half-precision float to float32  (was: Can't save a df using Parquet if using float16)

> [C++] Coerce Arrow half-precision float to float32
> --------------------------------------------------
>
>                 Key: PARQUET-1403
>                 URL: https://issues.apache.org/jira/browse/PARQUET-1403
>             Project: Parquet
>          Issue Type: Bug
>          Components: parquet-cpp
>    Affects Versions: cpp-1.4.0
>            Reporter: Naor Volkovich
>            Priority: Major
>
> When trying to save a Pandas DF using "to_parquet" when that DF has a column with a dtype of float16, I get the error: "pyarrow.lib.ArrowNotImplementedError: Unhandled type for Arrow to Parquet schema conversion: halffloat"



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