wuyunfeng opened a new pull request #3277: [Doris on es] Support compound_and 
predicate push down to Elasticsearch
URL: https://github.com/apache/incubator-doris/pull/3277
 
 
   Relate Issue: https://github.com/apache/incubator-doris/issues/3248
   
   
   SQL:
   
   ```
   select * from test where (k2 = 6 and k3 = 1) or (k2 = 2 and k3 =3 and k4 = 
'beijing');
   ```
   
   Output filter:
   
   ```
   ConstantScore(((#k2:[6 TO 6] #k3:[7 TO 7]) (#(#k2:[2 TO 2] #k3:[3 TO 3]) 
#k4:beijing))~1))^0.0
   ```
   
   SQL:
   
   ```
   select * from test where (k2 = 6 or k3 = 7) or (k2 = 2 and k3 =3 and (k4 = 
'beijing' or k4 = 'zhaochun'));
   ```
   Output filter:
   
   ```
   (k2:[6 TO 6] k3:[7 TO 7] (#(#k2:[2 TO 2] #k3:[3 TO 3]) #((k4:beijing 
k4:zhaochun)~1)))~1
   ```
   
   SQL:
   
   ```
   select * from test where (k2 = 6 or k3 = 7) or (k2 = 2 and abs(k3) =3 and 
(k4 = 'beijing' or k4 = 'zhaochun'));
   ```
   
   Output filter (`abs` can not be pushed down to es, so doris on es would not 
process this scenario ):
   
   ```
   match_all
   ```

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