Quick patch for the solution for issue #19

postgres_kernel/kernel.py

@@ -188,10 +188,10 @@ def do_execute(self, code, silent, store_history=True,
             self.send_response(self.iopub_socket, 'stream',
                                {'name': 'stderr', 'text': str(e)})
             self._conn.rollback()
-            return {'status': 'error', 'execution_count': self.execution_count,
-                    'ename': 'ProgrammingError', 'evalue': str(e),
-                    'traceback': []}
+            return {'status': 'abort', 'execution_count': self.execution_count}
+
         else:
+
             if rows is not None:
                 self.send_response(
                     self.iopub_socket, 'stream', {
@@ -210,6 +210,8 @@ def do_execute(self, code, silent, store_history=True,
             if header is not None and len(rows) > 0:
                 self.send_response(self.iopub_socket, 'display_data', display_data(header, rows))
 
+            self._conn.commit()
+
         return {'status': 'ok', 'execution_count': self.execution_count,
                 'payload': [], 'user_expressions': {}}