seddonm1 commented on a change in pull request #1042:
URL: https://github.com/apache/arrow-rs/pull/1042#discussion_r769072767
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File path: arrow/src/compute/kernels/comparison.rs
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@@ -360,7 +360,11 @@ pub fn like_utf8_scalar<OffsetSize: StringOffsetSizeTrait>(
}
}
} else {
- let re_pattern = right.replace("%", ".*").replace("_", ".");
+ let re_pattern = right
+ .replace("%", ".*")
+ .replace("_", ".")
+ .replace("(", r#"\("#)
Review comment:
I found the rust regex crate syntax difficult at the time so I would
suggest adding test cases for all their escaping. Regex is so powerful it would
be easy to miss something.
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