Fix max_pk query

Author: jjh-kim

src/sbosc/controller/controller.py

@@ -65,8 +65,8 @@ def create_bulk_import_chunks(self):
         metadata = self.redis_data.metadata
         with self.db.cursor(role="reader") as cursor:
             cursor.execute('''
-                  SELECT MIN(%s), MAX(%s) FROM %s.%s
-              ''' % (metadata.pk_column, metadata.pk_column, metadata.source_db, metadata.source_table))
+                  SELECT MAX(%s) FROM %s.%s
+              ''' % (metadata.pk_column, metadata.source_db, metadata.source_table))
             max_pk = cursor.fetchone()[0]
             if max_pk is None:
                 raise Exception("No data in source table")