cloud-fan commented on a change in pull request #33413:
URL: https://github.com/apache/spark/pull/33413#discussion_r680646683



##########
File path: 
external/avro/src/main/scala/org/apache/spark/sql/avro/AvroDeserializer.scala
##########
@@ -147,6 +147,21 @@ private[sql] class AvroDeserializer(
           s"Avro logical type $other cannot be converted to SQL type 
${TimestampType.sql}.")
       }
 
+      case (LONG, TimestampNTZType) => avroType.getLogicalType match {
+        // For backward compatibility, if the Avro type is Long and it is not 
logical type

Review comment:
       then can we at least update the comment? it's no thing about backward 
compatibility, but to keep consistent with TS LTZ.

##########
File path: 
external/avro/src/main/scala/org/apache/spark/sql/avro/AvroDeserializer.scala
##########
@@ -147,6 +147,21 @@ private[sql] class AvroDeserializer(
           s"Avro logical type $other cannot be converted to SQL type 
${TimestampType.sql}.")
       }
 
+      case (LONG, TimestampNTZType) => avroType.getLogicalType match {
+        // For backward compatibility, if the Avro type is Long and it is not 
logical type

Review comment:
       then can we at least update the comment? it's nothing about backward 
compatibility, but to keep consistent with TS LTZ.




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