Ian Cook created ARROW-12952:
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Summary: [C++] Add regex count kernel
Key: ARROW-12952
URL: https://issues.apache.org/jira/browse/ARROW-12952
Project: Apache Arrow
Issue Type: New Feature
Components: C++
Reporter: Ian Cook
Returns the number of times the regular expression pattern occurs in the
string, like {{len(re.findall(...))}} in Python and {{regexp_count()}} in some
SQL dialects
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