[GitHub] [pinot] walterddr commented on issue #6599: Support REGEXP_EXTRACT function

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

walterddr commented on issue #6599:
URL: https://github.com/apache/pinot/issues/6599#issuecomment-920519302


   Reference: https://github.com/apache/pinot/pull/7114#pullrequestreview-753198294
   
   what would be the most useful feature for us to support.
   
   Comparing the features of REGEXP_EXTRACT between bigquery and presto
   big query:
   - supports starting position offset
   - supports finding multiple occurrence (e.g. number of full occurrent match starting from the first index)
   - doesn't support capture group extract, must extract the full regex
   
   presto:
   - doesn't support starting position offset or multiple occurrence
   - supports capture group extract for the first occurrence
   
   CC @Jackie-Jiang
   


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