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Posted to commits@doris.apache.org by GitBox <gi...@apache.org> on 2022/04/15 05:56:04 UTC

[GitHub] [incubator-doris] jackwener opened a new issue, #9042: [Feature] Split the implict `is not null` from `whereclause`

jackwener opened a new issue, #9042:
URL: https://github.com/apache/incubator-doris/issues/9042

   ### Search before asking
   
   - [X] I had searched in the [issues](https://github.com/apache/incubator-doris/issues?q=is%3Aissue) and found no similar issues.
   
   
   ### Description
   
   *It's original from the comment from #9018, more detail discussion in it*
   
   > For comparison operator, semantics is different in select expr and where expr. Only where expr implicit include is not null.
   
   I'd like to split the predicate with implicit `is not null` from `whereclause`, like:
   
   ```sql
   select * from table where c1 > 0;
   --->
   select * from table where c1 > 0 and c1 is not null;
   ```
   
   After this, I don't need to consider `implicit not null` in `whereclause predicate` 😍
   
   Like #7698 #9016, we just need to consider the explicit `not null`.
   
   ### Use case
   
   _No response_
   
   ### Related issues
   
   - #9018 
   - #7698 
   - #9016
   
   ### Are you willing to submit PR?
   
   - [X] Yes I am willing to submit a PR!
   
   ### Code of Conduct
   
   - [X] I agree to follow this project's [Code of Conduct](https://www.apache.org/foundation/policies/conduct)
   


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[GitHub] [doris] jackwener closed issue #9042: [Feature] Split the implict `is not null` from `whereclause`

Posted by GitBox <gi...@apache.org>.
jackwener closed issue #9042: [Feature] Split the implict `is not null` from `whereclause`
URL: https://github.com/apache/doris/issues/9042


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