[GitHub] [pinot] walterddr commented on pull request #7114: Support REGEXP_EXTRACT

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

walterddr commented on pull request #7114:
URL: https://github.com/apache/pinot/pull/7114#issuecomment-917336455


   > Let's also add the scalar function version of it which can be used during data ingestion
   
   could you share how the scalarFunction wrapper could be tested in ingestion?
   
   Also I dont know if this is a good idea on a second thought:
   in the regex spect, regex pattern actually only accepts string literal (it doesn't support column), so it would be super inefficient to do a per-row pattern compilation.


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