diff --git a/external/avro/src/main/scala/org/apache/spark/sql/avro/AvroDataToCatalyst.scala b/external/avro/src/main/scala/org/apache/spark/sql/avro/AvroDataToCatalyst.scala
index 915769fa708b0..8641b9ffad8b0 100644
--- a/external/avro/src/main/scala/org/apache/spark/sql/avro/AvroDataToCatalyst.scala
+++ b/external/avro/src/main/scala/org/apache/spark/sql/avro/AvroDataToCatalyst.scala
@@ -51,13 +51,7 @@ case class AvroDataToCatalyst(child: Expression, jsonFormatSchema: String)
     deserializer.deserialize(result)
   }
 
-  override def simpleString: String = {
-    s"from_avro(${child.sql}, ${dataType.simpleString})"
-  }
-
-  override def sql: String = {
-    s"from_avro(${child.sql}, ${dataType.catalogString})"
-  }
+  override def prettyName: String = "from_avro"
 
   override protected def doGenCode(ctx: CodegenContext, ev: ExprCode): ExprCode = {
     val expr = ctx.addReferenceObj("this", this)
diff --git a/external/avro/src/main/scala/org/apache/spark/sql/avro/CatalystDataToAvro.scala b/external/avro/src/main/scala/org/apache/spark/sql/avro/CatalystDataToAvro.scala
index 141ff3782adfb..6ed330d92f5e6 100644
--- a/external/avro/src/main/scala/org/apache/spark/sql/avro/CatalystDataToAvro.scala
+++ b/external/avro/src/main/scala/org/apache/spark/sql/avro/CatalystDataToAvro.scala
@@ -52,13 +52,7 @@ case class CatalystDataToAvro(child: Expression) extends UnaryExpression {
     out.toByteArray
   }
 
-  override def simpleString: String = {
-    s"to_avro(${child.sql}, ${child.dataType.simpleString})"
-  }
-
-  override def sql: String = {
-    s"to_avro(${child.sql}, ${child.dataType.catalogString})"
-  }
+  override def prettyName: String = "to_avro"
 
   override protected def doGenCode(ctx: CodegenContext, ev: ExprCode): ExprCode = {
     val expr = ctx.addReferenceObj("this", this)