[GitHub] qiuchenjian opened a new pull request #3122: [CARBONDATA-3289] MV datamap doesn't take effect when having clause use alias

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qiuchenjian opened a new pull request #3122: [CARBONDATA-3289] MV datamap doesn't take effect when having clause use alias
URL: https://github.com/apache/carbondata/pull/3122
 
 
   [Problem] 
   MV datamap doesn't take effect when having clause use alias
   `create table test_main(id int,name string,height int) using carbondata`
   `create datamap test_main_mv using 'mv' as select cast(id + 1 as bigint) as cast_id ,count(name) from test_main group by cast_id`
   `create datamap test_main_mv using 'mv' as select cast(id + 1 as bigint) as cast_id ,count(name) from test_main group by cast_id`
   `select cast(id + 1 as bigint) as cast_id,count(name) from test_main where cast(id + 1 as bigint) < 3 group by cast_id`
   
   [Solution]
   Add a rule to modify the logical plan to support this
   
   Be sure to do all of the following checklist to help us incorporate 
   your contribution quickly and easily:
   
    - [ ] Any interfaces changed?
    
    - [ ] Any backward compatibility impacted?
    
    - [ ] Document update required?
   
    - [ ] Testing done
           Please provide details on 
           - Whether new unit test cases have been added or why no new tests are required?
           - How it is tested? Please attach test report.
           - Is it a performance related change? Please attach the performance test report.
           - Any additional information to help reviewers in testing this change.
          
    - [ ] For large changes, please consider breaking it into sub-tasks under an umbrella JIRA. 
   
   

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