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Posted to issues@kylin.apache.org by "yuzhang qiu (JIRA)" <ji...@apache.org> on 2019/01/24 12:41:00 UTC
[jira] [Commented] (KYLIN-2681) Convert input sql's expression to
computed column if computed colum defined
[ https://issues.apache.org/jira/browse/KYLIN-2681?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16751077#comment-16751077 ]
yuzhang qiu commented on KYLIN-2681:
------------------------------------
It's resovled? Could you show me the commit?
> Convert input sql's expression to computed column if computed colum defined
> ---------------------------------------------------------------------------
>
> Key: KYLIN-2681
> URL: https://issues.apache.org/jira/browse/KYLIN-2681
> Project: Kylin
> Issue Type: Improvement
> Components: Query Engine
> Affects Versions: v2.0.0
> Reporter: Jiatao Tao
> Assignee: Jiatao Tao
> Priority: Minor
> Fix For: Future
>
>
> convert user's input sql's expression to computed column if computed column already defined.For example :
> *define computed column:*
> cc1:a*b+c
> *user's input sql*
> select t1.a*t1.b+t1.c from table1 t1
> and then will be tranformed to:
> select t1.cc1 from table1 t1
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