linjianchang commented on code in PR #3833:
URL: https://github.com/apache/flink-cdc/pull/3833#discussion_r2055105276


##########
flink-cdc-connect/flink-cdc-source-connectors/flink-connector-debezium/src/main/java/org/apache/flink/cdc/debezium/event/DebeziumSchemaDataTypeInference.java:
##########
@@ -188,6 +188,10 @@ protected DataType inferBytes(Object value, Schema schema) 
{
     protected DataType inferStruct(Object value, Schema schema) {
         Struct struct = (Struct) value;
         if (VariableScaleDecimal.LOGICAL_NAME.equals(schema.name())) {
+            if (struct == null) {
+                // set the default value
+                return DataTypes.DECIMAL(10, 0);

Review Comment:
   > @linjianchang Can you add unit test for this scenario?
   
   have added unit test,please review again,thanks@GOODBOY008
   



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