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Posted to dev@parquet.apache.org by "Deepak Majeti (JIRA)" <ji...@apache.org> on 2016/03/03 19:29:18 UTC

[jira] [Commented] (PARQUET-555) Encoding::PLAIN_DICTIONARY is unhandled in ColumnReader

    [ https://issues.apache.org/jira/browse/PARQUET-555?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15178313#comment-15178313 ] 

Deepak Majeti commented on PARQUET-555:
---------------------------------------

If I understood it correctly,
PLAIN_DICTIONARY: 1 PLAIN encoded Dictionary page with the dictionary values followed by rle-encoded Data pages with corresponding indices  (4 byte integers).
RLE_DICTIONARY: rle encoded Data pages with indices (4 byte integers). (There is no dictionary associated)

> Encoding::PLAIN_DICTIONARY is unhandled in ColumnReader
> -------------------------------------------------------
>
>                 Key: PARQUET-555
>                 URL: https://issues.apache.org/jira/browse/PARQUET-555
>             Project: Parquet
>          Issue Type: Bug
>          Components: parquet-cpp
>            Reporter: Wes McKinney
>            Assignee: Deepak Majeti
>
> See parquet-format re: PLAIN_DICTIONARY / RLE_DICTIONARY distinction — our handling of the page metadata is not consistent with the format.



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