tustvold commented on code in PR #5235:
URL: https://github.com/apache/arrow-rs/pull/5235#discussion_r1435414837
##########
arrow-string/src/regexp.rs:
##########
@@ -216,15 +215,14 @@ pub fn regexp_match<OffsetSize: OffsetSizeTrait>(
(Some(value), Some(pattern)) => {
let existing_pattern = patterns.get(&pattern);
let re = match existing_pattern {
- Some(re) => re.clone(),
+ Some(re) => re,
None => {
let re = Regex::new(pattern.as_str()).map_err(|e| {
ArrowError::ComputeError(format!(
"Regular expression did not compile: {e:?}"
))
})?;
- patterns.insert(pattern, re.clone());
- re
+ patterns.entry(pattern).or_insert(re)
Review Comment:
That is what I meant, perhaps the regression is because of the added clone
(which i think can be removed)
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