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https://issues.apache.org/jira/browse/HIVE-17593?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Junjie Chen updated HIVE-17593:
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Description:
DataWritableWriter strip spaces for CHAR type before writing. While when
generating predicate, it does NOT do same striping which should cause data
missing!
In current version, it doesn't cause data missing since predicate is not well
push down to parquet due to HIVE-17261.
Please see ConvertAstTosearchArg.java, getTypes treats CHAR and STRING as same
which will build a predicate with tail spaces.
was:
DataWritableWriter strip spaces for CHAR type before writing. While when
generating predicate, it does't do same striping which should cause data
missing!
ConvertAstTosearchArg.java#getTypes treat CHAR and STRING as same.
> DataWritableWriter strip spaces for CHAR type before writing, but predicate
> generator doesn't do same thing.
> ------------------------------------------------------------------------------------------------------------
>
> Key: HIVE-17593
> URL: https://issues.apache.org/jira/browse/HIVE-17593
> Project: Hive
> Issue Type: Bug
> Affects Versions: 3.0.0
> Reporter: Junjie Chen
>
> DataWritableWriter strip spaces for CHAR type before writing. While when
> generating predicate, it does NOT do same striping which should cause data
> missing!
> In current version, it doesn't cause data missing since predicate is not well
> push down to parquet due to HIVE-17261.
> Please see ConvertAstTosearchArg.java, getTypes treats CHAR and STRING as
> same which will build a predicate with tail spaces.
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