[GitHub] [pinot] jackluo923 commented on issue #10981: json_extract_scalar times out when the expression contains index

["jackluo923 (via GitHub)" <gi...@apache.org>]

jackluo923 commented on issue #10981:
URL: https://github.com/apache/pinot/issues/10981#issuecomment-1611358390

   Based on my experimentation and the version of Pinot you are currently using, it appears that there may be difficulties when using json_extract_scalar to extract values from JSON documents that contain keys with an array of maps. A work around is to extract the maps within the array using `regexpExtract` before running `json_extract_scalar`. Specifically, this will work with your example: 
   
   ```
   select json_extract_scalar(regexpExtract("direct_tags", '(?<=\"root_workflow\":\[)[^\]]*'), '$.tag_value', 'STRING') from foo 
    where event_time=1687826999657
   ```


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