From 3d94339157099fc2eee7102c86a78176412fb892 Mon Sep 17 00:00:00 2001
From: Neil Conway <neil.conway@gmail.com>
Date: Sun, 8 Feb 2026 07:10:19 -0500
Subject: [PATCH] fix: Fix panic in regexp_like() (#20200)

## Which issue does this PR close?

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- Closes #.

## Rationale for this change

Evaluating
```
CREATE TABLE t0(v0 BOOLEAN, v1 BOOLEAN, v2 BIGINT);
INSERT INTO t0(v2) VALUES (680485277);
SELECT 'NaN'::Double FROM t0 AS tt0 WHERE REGEXP_LIKE('f', REGEXP_REPLACE((('v\r') LIKE ('f_*sP6H1*')), '339629555', '-1459539013'));
```

Yields a panic:

```
DataFusion CLI v52.1.0
0 row(s) fetched.
Elapsed 0.010 seconds.

+-------+
| count |
+-------+
| 1     |
+-------+
1 row(s) fetched.
Elapsed 0.008 seconds.


thread 'main' (41417869) panicked at /Users/neilconway/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/arrow-array-57.2.0/src/cast.rs:878:33:
string view array
stack backtrace:
   0: __rustc::rust_begin_unwind
             at /rustc/ded5c06cf21d2b93bffd5d884aa6e96934ee4234/library/std/src/panicking.rs:698:5
   1: core::panicking::panic_fmt
             at /rustc/ded5c06cf21d2b93bffd5d884aa6e96934ee4234/library/core/src/panicking.rs:80:14
   2: core::panicking::panic_display
             at /rustc/ded5c06cf21d2b93bffd5d884aa6e96934ee4234/library/core/src/panicking.rs:264:5
   3: core::option::expect_failed
             at /rustc/ded5c06cf21d2b93bffd5d884aa6e96934ee4234/library/core/src/option.rs:2183:5
   4: core::option::Option<T>::expect
             at /Users/neilconway/.rustup/toolchains/1.92.0-aarch64-apple-darwin/lib/rustlib/src/rust/library/core/src/option.rs:970:21
   5: arrow_array::cast::AsArray::as_string_view
             at /Users/neilconway/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/arrow-array-57.2.0/src/cast.rs:878:33
   6: datafusion_functions::regex::regexplike::handle_regexp_like
             at ./datafusion/functions/src/regex/regexplike.rs:359:32
   7: datafusion_functions::regex::regexplike::regexp_like
             at ./datafusion/functions/src/regex/regexplike.rs:272:14
```

## Are these changes tested?

Tested manually. It seemed a bit arbitrary to add a unit test for this
case specifically, but I'm happy to do so if folks think it would be
useful.
---
 datafusion/functions/src/regex/regexplike.rs              | 2 +-
 datafusion/sqllogictest/test_files/regexp/regexp_like.slt | 5 +++++
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/datafusion/functions/src/regex/regexplike.rs b/datafusion/functions/src/regex/regexplike.rs
index f707c8e0d8c7..7f875fb603c6 100644
--- a/datafusion/functions/src/regex/regexplike.rs
+++ b/datafusion/functions/src/regex/regexplike.rs
@@ -356,7 +356,7 @@ fn handle_regexp_like(
                 .map_err(|e| arrow_datafusion_err!(e))?
         }
         (Utf8, LargeUtf8) => {
-            let value = values.as_string_view();
+            let value = values.as_string::<i32>();
             let pattern = patterns.as_string::<i64>();
 
             regexp::regexp_is_match(value, pattern, flags)
diff --git a/datafusion/sqllogictest/test_files/regexp/regexp_like.slt b/datafusion/sqllogictest/test_files/regexp/regexp_like.slt
index 6f2d5a873c1b..2b304c8de1a3 100644
--- a/datafusion/sqllogictest/test_files/regexp/regexp_like.slt
+++ b/datafusion/sqllogictest/test_files/regexp/regexp_like.slt
@@ -334,5 +334,10 @@ true true
 false false
 false false
 
+query TT
+select * from regexp_test where regexp_like('f', regexp_replace((('v\r') like ('f_*sP6H1*')), '339629555', '-1459539013'));
+----
+
+
 statement ok
 drop table if exists dict_table;