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Posted to dev@parquet.apache.org by "ASF GitHub Bot (JIRA)" <ji...@apache.org> on 2018/12/11 14:29:00 UTC
[jira] [Commented] (PARQUET-1472) Dictionary filter fails on
FIXED_LEN_BYTE_ARRAY
[ https://issues.apache.org/jira/browse/PARQUET-1472?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16717266#comment-16717266 ]
ASF GitHub Bot commented on PARQUET-1472:
-----------------------------------------
gszadovszky opened a new pull request #562: PARQUET-1472: Dictionary filter fails on FIXED_LEN_BYTE_ARRAY
URL: https://github.com/apache/parquet-mr/pull/562
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> Dictionary filter fails on FIXED_LEN_BYTE_ARRAY
> -----------------------------------------------
>
> Key: PARQUET-1472
> URL: https://issues.apache.org/jira/browse/PARQUET-1472
> Project: Parquet
> Issue Type: Bug
> Components: parquet-mr
> Reporter: Gabor Szadovszky
> Assignee: Gabor Szadovszky
> Priority: Major
> Labels: pull-request-available
>
> DictonaryFilter does not handle FIXED_LEN_BYTE_ARRAY. Moreover, [DictionaryFilter.expandFilter(ColumnChunkMetaData)|https://github.com/apache/parquet-mr/blob/dc61e510126aaa1a95a46fe39bf1529f394147e9/parquet-hadoop/src/main/java/org/apache/parquet/filter2/dictionarylevel/DictionaryFilter.java#L78] returns an empty map instead of null therefore the row-group might be dropped as the value seems to not being in the dictionary.
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