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Posted to issues@kylin.apache.org by "Shaofeng SHI (JIRA)" <ji...@apache.org> on 2018/06/04 03:26:00 UTC

[jira] [Updated] (KYLIN-3161) Enforce global dictionary for bitmap count distinct column

     [ https://issues.apache.org/jira/browse/KYLIN-3161?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Shaofeng SHI updated KYLIN-3161:
--------------------------------
    Fix Version/s: v2.4.0

> Enforce global dictionary for bitmap count distinct column
> ----------------------------------------------------------
>
>                 Key: KYLIN-3161
>                 URL: https://issues.apache.org/jira/browse/KYLIN-3161
>             Project: Kylin
>          Issue Type: Improvement
>          Components: Measure - Count Distinct
>            Reporter: Shaofeng SHI
>            Priority: Major
>             Fix For: v2.4.0
>
>
> For bitmap based count distinct column (as the data type is not int), a Global dictionary is required. But now user can use normal dictionary, which may cause incorrect result.



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