diff --git a/datafusion/core/src/physical_planner.rs b/datafusion/core/src/physical_planner.rs
index d7bfb3bead54..d854cf41af96 100644
--- a/datafusion/core/src/physical_planner.rs
+++ b/datafusion/core/src/physical_planner.rs
@@ -1012,7 +1012,7 @@ impl DefaultPhysicalPlanner {
                 let left_df_schema = left.schema();
                 let right_df_schema = right.schema();
                 let execution_props = session_state.execution_props();
-                let config_options = Arc::new(session_state.config_options().clone());
+                let config_options = session_state.config_options();
                 let join_on = keys
                     .iter()
                     .map(|(l, r)| {
@@ -1020,13 +1020,13 @@ impl DefaultPhysicalPlanner {
                             l,
                             left_df_schema,
                             execution_props,
-                            &config_options,
+                            config_options,
                         )?;
                         let r = create_physical_expr(
                             r,
                             right_df_schema,
                             execution_props,
-                            &config_options,
+                            config_options,
                         )?;
                         Ok((l, r))
                     })
@@ -1099,7 +1099,7 @@ impl DefaultPhysicalPlanner {
                             expr,
                             &filter_df_schema,
                             session_state.execution_props(),
-                            &config_options,
+                            config_options,
                         )?;
                         let column_indices = join_utils::JoinFilter::build_column_indices(
                             left_field_indices,
diff --git a/datafusion/optimizer/src/decorrelate_predicate_subquery.rs b/datafusion/optimizer/src/decorrelate_predicate_subquery.rs
index 5b70d091312f..d99755be9970 100644
--- a/datafusion/optimizer/src/decorrelate_predicate_subquery.rs
+++ b/datafusion/optimizer/src/decorrelate_predicate_subquery.rs
@@ -104,12 +104,8 @@ impl OptimizerRule for DecorrelatePredicateSubquery {
                 }
                 // The subquery expression is embedded within another expression
                 SubqueryPredicate::Embedded(expr) => {
-                    let (plan, expr_without_subqueries) = rewrite_inner_subqueries(
-                        cur_input,
-                        expr,
-                        config,
-                        config.options(),
-                    )?;
+                    let (plan, expr_without_subqueries) =
+                        rewrite_inner_subqueries(cur_input, expr, config)?;
                     cur_input = plan;
                     other_exprs.push(expr_without_subqueries);
                 }
@@ -137,7 +133,6 @@ fn rewrite_inner_subqueries(
     outer: LogicalPlan,
     expr: Expr,
     config: &dyn OptimizerConfig,
-    config_options: &ConfigOptions,
 ) -> Result<(LogicalPlan, Expr)> {
     let mut cur_input = outer;
     let alias = config.alias_generator();
@@ -151,7 +146,7 @@ fn rewrite_inner_subqueries(
             None,
             negated,
             alias,
-            config_options,
+            config.options(),
         )? {
             Some((plan, exists_expr)) => {
                 cur_input = plan;
@@ -176,7 +171,7 @@ fn rewrite_inner_subqueries(
                 Some(in_predicate),
                 negated,
                 alias,
-                config_options,
+                config.options(),
             )? {
                 Some((plan, exists_expr)) => {
                     cur_input = plan;
diff --git a/datafusion/optimizer/src/simplify_expressions/expr_simplifier.rs b/datafusion/optimizer/src/simplify_expressions/expr_simplifier.rs
index ae3cb286a231..2f2644d65117 100644
--- a/datafusion/optimizer/src/simplify_expressions/expr_simplifier.rs
+++ b/datafusion/optimizer/src/simplify_expressions/expr_simplifier.rs
@@ -137,7 +137,6 @@ impl<S: SimplifyInfo> ExprSimplifier<S> {
     /// `b > 2`
     ///
     /// ```
-    /// use std::sync::Arc;
     /// use arrow::datatypes::DataType;
     /// use datafusion_common::config::ConfigOptions;
     /// use datafusion_expr::{col, lit, Expr};