[GitHub] [incubator-doris] jackwener commented on pull request #8910: [WIP][feature](optimizer) : convert out join to inner join

[GitBox]

jackwener commented on PR #8910:
URL: https://github.com/apache/incubator-doris/pull/8910#issuecomment-1096159553

   TODO：
   Now, this rule apply just predicate all is `AND` like `expr1 And expr2 And 
expr3`.
   
   The future ticklet is normalize `Expr`, we should conjunct all `OR`, like
   
   ```sql
   (A and B) or C -> (A or C) and (B or C)
   (A and B or C) or (D or E)-> (A and B and E) or (C and D) -> (A or C) and (A 
or D) and (B or C) and (B or D) and (E or C) and (E or D)
   ```
   
   For each (`left` `OR` `right`), `left` and `right` must have same `column`.


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