lgbo-ustc commented on issue #8325:
URL: 
https://github.com/apache/incubator-gluten/issues/8325#issuecomment-2561555205

   `\s` needs to be escaped
   ```
   0: jdbc:hive2://localhost:10000> select regexp_extract(n_name, 
'.*youtube.com/@(.*?)(\\s|$|,| )', 1) from (select if(n_regionkey = 0, 
'sadsdyoutube.com/@ko\nsd', n_name) as n_na
   me from tpch_pq.nation);
   +----------------------------------------------------+
   | regexp_extract(n_name, .*youtube.com/@(.*?)(\s|$|,| ), 1) |
   +----------------------------------------------------+
   | ko                                                 |
   |                                                    |
   |                                                    |
   |                                                    |
   |                                                    |
   | ko                                                 |
   |                                                    |
   |                                                    |
   |                                                    |
   |                                                    |
   |                                                    |
   |                                                    |
   |                                                    |
   |                                                    |
   | ko                                                 |
   | ko                                                 |
   | ko                                                 |
   |                                                    |
   |                                                    |
   |                                                    |
   |                                                    |
   |                                                    |
   |                                                    |
   |                                                    |
   |                                                    |
   +----------------------------------------------------+
   ```


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