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https://issues.apache.org/jira/browse/HIVE-11926?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14906699#comment-14906699
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Chaoyu Tang commented on HIVE-11926:
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Three failed tests seem not be related to patch. They failed even without this
patch.
> Stats annotation might not extract stats for varchar/decimal columns
> --------------------------------------------------------------------
>
> Key: HIVE-11926
> URL: https://issues.apache.org/jira/browse/HIVE-11926
> Project: Hive
> Issue Type: Bug
> Components: Logical Optimizer, Statistics
> Affects Versions: 1.2.1
> Reporter: Chaoyu Tang
> Assignee: Chaoyu Tang
> Attachments: HIVE-11926.patch
>
>
> It is because StatsUtils uses the String.startWith to compare VARCHAR/DECIMAL
> column type name with serdeConstants which are in lowercase. But these type
> names in stats might not be in lower case. We ran into a case where the type
> name from TAB_COL_STATS/PART_COL_STATS was actually in uppercase (e.g.
> VARCHAR, DECIMAL) because these column stats were populated from other HMS
> clients like Impala.
> We need changes these type name comparison to be case insensitive
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