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Posted to jira@arrow.apache.org by "Caleb Epstein (Jira)" <ji...@apache.org> on 2022/01/04 15:56:00 UTC

[jira] [Updated] (ARROW-15236) Cannot stream DATE to Parquet

     [ https://issues.apache.org/jira/browse/ARROW-15236?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Caleb Epstein updated ARROW-15236:
----------------------------------
    Summary: Cannot stream DATE to Parquet  (was: Cannot stream Dates to Parquet)

> Cannot stream DATE to Parquet
> -----------------------------
>
>                 Key: ARROW-15236
>                 URL: https://issues.apache.org/jira/browse/ARROW-15236
>             Project: Apache Arrow
>          Issue Type: Bug
>          Components: C++
>    Affects Versions: 6.0.1
>            Reporter: Caleb Epstein
>            Priority: Minor
>         Attachments: parquet.cpp
>
>
> I cannot for the life of me figure out how to write a DATE to a Parquet file using the parquet::StreamWriter API.  See attached example code, which generates this exception when writing the second column:
> {code:java}
> ❯ ./parquet
> terminate called after throwing an instance of 'parquet::ParquetException'
>   what():  Column converted type mismatch.  Column 'date' has converted type[DATE] not 'INT_32'
> {code}
> I have also tried:
> * Declaring the field's type as `INT64`, which yields the exception {{DATE can only annotate INT32}} when defining the schema.
> * Declaring the field using the alternate version of {{Make}} with {{LogicalType::Date(), Type::INT32}}.  This yields the same exception as the code attached.



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