[GitHub] [incubator-pinot] HyunjoonCho commented on issue #6307: Getting list of non singleFieldValue field using select / group by

[GitBox <gi...@apache.org>]

HyunjoonCho commented on issue #6307:
URL: https://github.com/apache/incubator-pinot/issues/6307#issuecomment-737610665


   Thanks for the comment,
   
   > select tags from metric 
   
   Yeah, this lists tags but what I'm trying to do is filtering out duplicate ones.
   
   To illustrate, if there are tags like below: 
   ```
   ["tag1", "tag2", "tag3"], ["tag1", "tag2", "tag3"], ["tag1", "tag2"], ["tag1", "tag2"], ["tag1", "tag2", "tag3"], ["tag4"] 
   ```
   When I do query with above one, it lists all the tags as they are.
   I want to print out each tags list only once like this: 
   
   ```
   ["tag1", "tag2", "tag3"], ["tag1", "tag2"], ["tag4"] 
   ```
   Is there a proper query for this? 
   Thank you.


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