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Posted to issues@kylin.apache.org by "nichunen (Jira)" <ji...@apache.org> on 2020/05/18 14:06:00 UTC

[jira] [Updated] (KYLIN-4281) Precisely set the data type of tuple expression

     [ https://issues.apache.org/jira/browse/KYLIN-4281?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

nichunen updated KYLIN-4281:
----------------------------
    Sprint: Sprint 51

> Precisely set the data type of tuple expression
> -----------------------------------------------
>
>                 Key: KYLIN-4281
>                 URL: https://issues.apache.org/jira/browse/KYLIN-4281
>             Project: Kylin
>          Issue Type: Improvement
>            Reporter: Zhong Yanghong
>            Assignee: Zhong Yanghong
>            Priority: Major
>             Fix For: v3.1.0
>
>
> Previously to simplify the calculating of sum(case when), all of the binary calculation is based on BigDecimal, which is not good for all, especially when dealing with count(distinct case when), whose inner data type may be hll or bitmap.



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