liyubin117 commented on code in PR #23678:
URL: https://github.com/apache/flink/pull/23678#discussion_r1429393701


##########
flink-table/flink-table-api-java-bridge/src/main/java/org/apache/flink/connector/datagen/table/DataGenTableSourceFactory.java:
##########
@@ -141,15 +143,15 @@ private DataGeneratorContainer createContainer(
     }
 
     private void validateFieldOptions(String name, DataType type, 
ReadableConfig options) {
-        ConfigOption<Boolean> lenOption =
+        ConfigOption<Boolean> varLenOption =
                 key(DataGenConnectorOptionsUtil.FIELDS
                                 + "."
                                 + name
                                 + "."
                                 + DataGenConnectorOptionsUtil.VAR_LEN)
                         .booleanType()
                         .defaultValue(false);
-        options.getOptional(lenOption)
+        options.getOptional(varLenOption)

Review Comment:
   sorry to misunderstand. I invoke this to filter the table that contains ` 
'fields.#.var-len' = 'true' `, then we could use `ifPresent` check if it is 
sufficient to use such option.



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