Hussain Towaileb created ASTERIXDB-2685:
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             Summary: Regexp_split implement inside RegExpMatcher class
                 Key: ASTERIXDB-2685
                 URL: https://issues.apache.org/jira/browse/ASTERIXDB-2685
             Project: Apache AsterixDB
          Issue Type: Task
            Reporter: Hussain Towaileb


Currently, the regex_split function is using the Java String.split behavior, 
which compiles the regex with each call, creating an extra object. This could 
be done inside our RegExpMatcher which re-uses the existing regex part if it's 
the same, avoiding the creation of a new object sometimes.



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