From e9e94b475264afde5bf3969f39332ca8894dfcaf Mon Sep 17 00:00:00 2001
From: Michael Xu <xzhseh@gmail.com>
Date: Tue, 20 Feb 2024 11:39:20 -0500
Subject: [PATCH] return None if regex compilation fails

---
 src/frontend/src/handler/create_sql_function.rs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/frontend/src/handler/create_sql_function.rs b/src/frontend/src/handler/create_sql_function.rs
index 435d1fe09f111..71fb480ae9ab3 100644
--- a/src/frontend/src/handler/create_sql_function.rs
+++ b/src/frontend/src/handler/create_sql_function.rs
@@ -66,7 +66,9 @@ fn find_target(input: &str, target: &str) -> Option<usize> {
     // The pattern uses negative lookbehind (?<!...) and lookahead (?!...) to ensure
     // the target is not surrounded by ASCII alphabetic characters
     let pattern = format!(r"(?<![A-Za-z]){0}(?![A-Za-z])", fancy_regex::escape(target));
-    let re = Regex::new(&pattern).unwrap();
+    let Ok(re) = Regex::new(&pattern) else {
+        return None;
+    };
 
     let Ok(Some(ma)) = re.find(input) else {
         return None;