Minor: Make messages consistent for LogicalPlan::Dml

datafusion/core/src/physical_plan/planner.rs

@@ -1183,7 +1183,7 @@ impl DefaultPhysicalPlanner {
                 LogicalPlan::Dml(_) => {
                     // DataFusion is a read-only query engine, but also a library, so consumers may implement this
                     Err(DataFusionError::Internal(
-                        "Unsupported logical plan: Write".to_string(),
+                        "Unsupported logical plan: Dml".to_string(),
                     ))
                 }
                 LogicalPlan::SetVariable(_) => {

datafusion/expr/src/logical_plan/plan.rs

@@ -937,7 +937,7 @@ impl LogicalPlan {
                         Ok(())
                     }
                     LogicalPlan::Dml(DmlStatement { table_name, op, .. }) => {
-                        write!(f, "Write: op=[{op}] table=[{table_name}]")
+                        write!(f, "Dml: op=[{op}] table=[{table_name}]")
                     }
                     LogicalPlan::Filter(Filter {
                         predicate: ref expr,

datafusion/proto/src/logical_plan/mod.rs

@@ -1346,7 +1346,7 @@ impl AsLogicalPlan for LogicalPlanNode {
                 "LogicalPlan serde is not yet implemented for DropView",
             )),
             LogicalPlan::Dml(_) => Err(proto_error(
-                "LogicalPlan serde is not yet implemented for Write",
+                "LogicalPlan serde is not yet implemented for Dml",
             )),
         }
     }