[jira] [Created] (KYLIN-2681) Convert input sql's expression to computed column if computed colum defined

["jiatao.tao (JIRA)" <ji...@apache.org>]

jiatao.tao created KYLIN-2681:
---------------------------------

             Summary: 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: liyang
            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



--
This message was sent by Atlassian JIRA
(v6.4.14#64029)