Improve performance sort TPCH q3 with Utf8Vew ( Sort-preserving merging on a single Utf8View ) (#15447)

Author: zhuqi-lucas

datafusion/physical-plan/src/sorts/cursor.rs

@@ -284,7 +284,7 @@ impl<T: ByteArrayType> CursorArray for GenericByteArray<T> {
 impl CursorArray for StringViewArray {
     type Values = StringViewArray;
     fn values(&self) -> Self {
-        self.clone()
+        self.gc()
     }
 }