Cleanup GetIndexedField (#10769)

* Cleanup GetIndexedField

* Generate pb

---------

Co-authored-by: Andrew Lamb <[email protected]>

datafusion/expr/src/expr.rs

@@ -541,28 +541,6 @@ pub enum GetFieldAccess {
     },
 }
 
-/// Returns the field of a [`ListArray`] or
-/// [`StructArray`] by `key`.
-///
-/// See [`GetFieldAccess`] for details.
-///
-/// [`ListArray`]: arrow::array::ListArray
-/// [`StructArray`]: arrow::array::StructArray
-#[derive(Clone, PartialEq, Eq, Hash, Debug)]
-pub struct GetIndexedField {
-    /// The expression to take the field from
-    pub expr: Box<Expr>,
-    /// The name of the field to take
-    pub field: GetFieldAccess,
-}
-
-impl GetIndexedField {
-    /// Create a new GetIndexedField expression
-    pub fn new(expr: Box<Expr>, field: GetFieldAccess) -> Self {
-        Self { expr, field }
-    }
-}
-
 /// Cast expression
 #[derive(Clone, PartialEq, Eq, Hash, Debug)]
 pub struct Cast {

datafusion/expr/src/lib.rs

@@ -63,8 +63,8 @@ pub use aggregate_function::AggregateFunction;
 pub use built_in_window_function::BuiltInWindowFunction;
 pub use columnar_value::ColumnarValue;
 pub use expr::{
-    Between, BinaryExpr, Case, Cast, Expr, GetFieldAccess, GetIndexedField, GroupingSet,
-    Like, Sort as SortExpr, TryCast, WindowFunctionDefinition,
+    Between, BinaryExpr, Case, Cast, Expr, GetFieldAccess, GroupingSet, Like,
+    Sort as SortExpr, TryCast, WindowFunctionDefinition,
 };
 pub use expr_fn::*;
 pub use expr_schema::ExprSchemable;

datafusion/proto/proto/datafusion.proto

@@ -407,15 +407,6 @@ message ListRange {
   LogicalExprNode stride = 3;
 }
 
-message GetIndexedField {
-  LogicalExprNode expr = 1;
-  oneof field {
-    NamedStructField named_struct_field = 2;
-    ListIndex list_index = 3;
-    ListRange list_range = 4;
-  }
-}
-
 message IsNull {
   LogicalExprNode expr = 1;
 }