chore: Add proper format for SchemaPivotNode (#1744)

query/src/exec/schema_pivot.rs

@@ -36,8 +36,8 @@ use datafusion::{
     error::{DataFusionError as Error, Result},
     logical_plan::{self, DFSchemaRef, Expr, LogicalPlan, ToDFSchema, UserDefinedLogicalNode},
     physical_plan::{
-        common::SizedRecordBatchStream, Distribution, ExecutionPlan, Partitioning,
-        SendableRecordBatchStream,
+        common::SizedRecordBatchStream, DisplayFormatType, Distribution, ExecutionPlan,
+        Partitioning, SendableRecordBatchStream,
     },
 };
 
@@ -280,6 +280,14 @@ impl ExecutionPlan for SchemaPivotExec {
             batches,
         )))
     }
+
+    fn fmt_as(&self, t: DisplayFormatType, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        match t {
+            DisplayFormatType::Default => {
+                write!(f, "SchemaPivotExec")
+            }
+        }
+    }
 }
 
 #[cfg(test)]