alamb commented on code in PR #13414:
URL: https://github.com/apache/datafusion/pull/13414#discussion_r1842900042


##########
datafusion/functions/src/regex/regexpcount.rs:
##########
@@ -548,16 +549,22 @@ where
     }
 }
 
-fn compile_and_cache_regex<'a>(
-    regex: &'a str,
-    flags: Option<&'a str>,
-    regex_cache: &'a mut HashMap<String, Regex>,
-) -> Result<&'a Regex, ArrowError> {
-    if !regex_cache.contains_key(regex) {

Review Comment:
   the bug is that this check doesn't include the flags, is that correct?



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