[GitHub] [pinot] cxing opened a new issue #7627: Pinot can't skip creating derived column when configured in transform functions

Sun, 24 Oct 2021 20:02:34 -0700 


cxing opened a new issue #7627:
URL: https://github.com/apache/pinot/issues/7627


   When reloading segments, pinot will skip many segments when derived column 
not configured in schema or segments metadata , which will cause some segments 
not synced latest new columns
   
   We got the following error message when query from table:
   
![image](https://user-images.githubusercontent.com/13634486/138628158-fe6abe65-7572-4130-9e73-0d0ff05ba96d.png)
   
   Code need remove:
   ```
   for (String argument : arguments) {
     ColumnMetadata columnMetadata = 
_segmentMetadata.getColumnMetadataFor(argument);
     if (columnMetadata == null) {
       LOGGER.warn("Skip creating derived column: {} because argument: {} does 
not exist in the segment", column,
           argument);
       return false;
     }
     argumentsMetadata.add(columnMetadata);
   }
   ```
   


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