.

Author: neilconway

datafusion/expr/src/type_coercion/other.rs

@@ -19,20 +19,6 @@ use arrow::datatypes::DataType;
 
 use super::binary::type_union_coercion;
 
-/// Attempts to coerce the types of `list_types` to be comparable with the
-/// `expr_type`.
-/// Returns the common data type for `expr_type` and `list_types`
-pub fn get_coerce_type_for_list(
-    expr_type: &DataType,
-    list_types: &[DataType],
-) -> Option<DataType> {
-    list_types
-        .iter()
-        .try_fold(expr_type.clone(), |left_type, right_type| {
-            type_union_coercion(&left_type, right_type)
-        })
-}
-
 /// Find a common coerceable type for all `when_or_then_types` as well
 /// and the `case_or_else_type`, if specified.
 /// Returns the common data type for `when_or_then_types` and `case_or_else_type`

datafusion/optimizer/src/analyzer/type_coercion.rs

@@ -2821,7 +2821,6 @@ mod test {
         )
     }
 
-    #[test]
     #[test]
     fn try_cast_string_literal_to_numeric() {
         use super::try_cast_string_literal_to_type;