rich7420 commented on code in PR #5322:
URL: https://github.com/apache/datafusion-comet/pull/5322#discussion_r3969272883


##########
native/spark-expr/src/string_funcs/contains.rs:
##########
@@ -134,6 +138,21 @@ fn contains_with_arrow_scalar(
     Ok(Arc::new(result))
 }
 
+fn contains_scalar_array(
+    haystack_scalar: &ScalarValue,
+    needle_array: &ArrayRef,
+) -> Result<ArrayRef> {
+    if haystack_scalar.is_null() {
+        return Ok(Arc::new(BooleanArray::new_null(needle_array.len())));
+    }
+
+    let haystack_str = get_string_scalar_value(haystack_scalar, "haystack")?;
+    let haystack_scalar_array = StringArray::new_scalar(haystack_str);
+
+    let result = arrow_contains(&haystack_scalar_array, needle_array)?;

Review Comment:
   Thanks for the update! Chao’s dictionary-string scalar case still fails at 
`get_string_scalar_value` on `79efafd8`, though it passes before this change. 
Could you preserve support for that case and add a regression test?



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