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Posted to dev@parquet.apache.org by "Wes McKinney (JIRA)" <ji...@apache.org> on 2018/09/13 22:13:00 UTC

[jira] [Commented] (PARQUET-1402) incorrect calculation column start offset for files created by parquet-mr 1.8.1

    [ https://issues.apache.org/jira/browse/PARQUET-1402?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16614119#comment-16614119 ] 

Wes McKinney commented on PARQUET-1402:
---------------------------------------

[~rip.nsk@gmail.com] we need you to use your real name when submitting patches -- it's a legal requirement for IP provenance purposes. 

> incorrect calculation column start offset for files created by parquet-mr 1.8.1
> -------------------------------------------------------------------------------
>
>                 Key: PARQUET-1402
>                 URL: https://issues.apache.org/jira/browse/PARQUET-1402
>             Project: Parquet
>          Issue Type: Bug
>          Components: parquet-cpp
>            Reporter: rip.nsk
>            Assignee: rip.nsk
>            Priority: Major
>              Labels: pull-request-available
>         Attachments: test.parquet
>
>
> parquet-mr (at least version 1.8.1-fast-201712141648170019-ab0622b)
> writes to ColumnChunk's metadata dictionary_page_offset == 0 when it is (supposed?) equal to data_page_offset.
> calculation of col_start in std::unique_ptr<PageReader> GetColumnPageReader(int i)
> works incorrectly in this case.



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