tchivs commented on code in PR #4075:
URL: https://github.com/apache/flink-cdc/pull/4075#discussion_r2268693894


##########
flink-cdc-connect/flink-cdc-pipeline-connectors/flink-cdc-pipeline-connector-postgres/src/main/java/org/apache/flink/cdc/connectors/postgres/factory/PostgresDataSourceFactory.java:
##########
@@ -369,23 +369,21 @@ private Optional<String> getValidateDatabaseName(String 
tables) {
                     String.format(
                             "Tables format must db.schema.table, can not 
'tables' = %s",
                             TABLES.key()));
-            if (tableNameParts.length == 3) {
-                String currentDbName = tableNameParts[0];
+            String currentDbName = tableNameParts[0];
 
+            checkState(
+                    isValidPostgresDbName(currentDbName),
+                    String.format(
+                            "The value of option %s does not conform to 
PostgresSQL database name naming conventions",
+                            TABLES.key()));
+            if (dbName == null) {
+                dbName = currentDbName;
+            } else {
                 checkState(
-                        isValidPostgresDbName(currentDbName),
+                        dbName.equals(currentDbName),
                         String.format(
-                                "The value of option %s does not conform to 
PostgresSQL database name naming conventions",
+                                "The value of option %s all table names must 
have the same database name",

Review Comment:
    @lvyanquan  Finished Please merge



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