[
https://issues.apache.org/jira/browse/PARQUET-2088?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17414092#comment-17414092
]
Gabor Szadovszky commented on PARQUET-2088:
-------------------------------------------
Could you please list what exact features do you think parquet-mr is
enabling/disabling based on {{created_by}}? This field is used by the actual
writer implementations (e.g. Impala, parquet-mr, parquet-cpp etc.). The example
already explains how to use it: {{impala version 1.0 (build
6cf94d29b2b7115df4de2c06e2ab4326d721eb55)}}
> Different created_by field values for application and library
> -------------------------------------------------------------
>
> Key: PARQUET-2088
> URL: https://issues.apache.org/jira/browse/PARQUET-2088
> Project: Parquet
> Issue Type: Improvement
> Components: parquet-mr
> Affects Versions: format-2.9.0
> Reporter: Joshua Howard
> Priority: Minor
>
> There seems to be a discrepancy in the Parquet format created_by field
> regarding how it should be filled out. The parquet-mr library uses this value
> to enable/disable features based on the parquet-mr version [here|#L64-L68].
> Meanwhile, users are encouraged to make use of the application version
> [here|[https://www.javadoc.io/doc/org.apache.parquet/parquet-format/latest/org/apache/parquet/format/FileMetaData.html]].
> It seems like there are multiple fields needed for an application and
> library version.
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
