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https://issues.apache.org/jira/browse/KYLIN-2901?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16198000#comment-16198000
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peng.jianhua commented on KYLIN-2901:
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[[email protected]], Ok. thanks.
> Update correct cardinality for empty table
> ------------------------------------------
>
> Key: KYLIN-2901
> URL: https://issues.apache.org/jira/browse/KYLIN-2901
> Project: Kylin
> Issue Type: Bug
> Components: Web
> Affects Versions: v2.0.0
> Reporter: peng.jianhua
> Assignee: peng.jianhua
> Priority: Minor
> Fix For: v2.3.0
>
> Attachments:
> 0001-KYLIN-2901-update-Cardinality-after-truncate-table.patch,
> KYLIN-2901-01.png, KYLIN-2901-02.png, KYLIN-2901-03.png, KYLIN-2901-04.png
>
>
> 1. Load KYLIN_CAL_DT table from 'Load Hive Table Metadata From Tree' screen.
> 2. Delete data using 'truncate table KYLIN_CAL_DT' command.
> 3. Query 'Cardinality' data from 'Data Source' screen.
> The Cardinality value is always the same after clicked 'reload table' button
> . The right result should be blank.
> Please refer to KYLIN-2901-01.png, KYLIN-2901-02.png, KYLIN-2901-03.png and
> KYLIN-2901-04.png
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