MukeshKumarKeepIt commented on code in PR #20048:
URL: https://github.com/apache/flink/pull/20048#discussion_r1378566025


##########
flink-connectors/flink-connector-jdbc/src/main/java/org/apache/flink/connector/jdbc/internal/converter/PostgresRowConverter.java:
##########
@@ -59,6 +63,25 @@ public JdbcDeserializationConverter 
createInternalConverter(LogicalType type) {
         }
     }
 
+    @Override
+    protected JdbcSerializationConverter createExternalConverter(LogicalType 
type) {
+        switch (type.getTypeRoot()) {
+            case CHAR:
+            case VARCHAR:
+                return (val, index, statement) -> {
+                    String valString = val.getString(index).toString();
+
+                    if (UUID_REGEX_PATTERN.matcher(valString).matches()) {

Review Comment:
   Hello, I am curious if some work is done on  
https://issues.apache.org/jira/browse/FLINK-29267 ? I require this solution, I 
tried to check the files but not sure how can i access connector configurations 
in PostgresRowConverter file.
   



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