681: only space character is considered as trailing whitespace

Author: AmosAidoo

crates/df-builtins/src/rtrimmed_length.rs

@@ -57,7 +57,7 @@ impl ScalarUDFImpl for RTrimmedLengthFunc {
 
         let new_array = strs
             .iter()
-            .map(|array_elem| array_elem.map(|value| value.trim_end().len() as u64))
+            .map(|array_elem| array_elem.map(|value| value.trim_end_matches(' ').len() as u64))
             .collect::<UInt64Array>();
 
         Ok(ColumnarValue::Array(Arc::new(new_array)))
@@ -89,6 +89,8 @@ mod tests {
               ('   '),
               (''),
               ('ABC'),
+              (E'ABCDEFGH  \t'),
+              (E'ABCDEFGH  \n'),
               (NULL);
           ";
         ctx.sql(insert).await?.collect().await?;
@@ -107,6 +109,8 @@ mod tests {
                 "| 0                               |",
                 "| 0                               |",
                 "| 3                               |",
+                "| 11                              |",
+                "| 11                              |",
                 "|                                 |",
                 "+---------------------------------+",
             ],