CONPY-289: BIGINT out of range on bulk insert

If a bigint value is > LONGLONG_MAX it must be
indicated that it is an unsigned value
(param->is_unsigned= 1).

mariadb/mariadb_codecs.c

@@ -1100,10 +1100,18 @@ mariadb_get_parameter_info(MrdbCursor *self,
 
         if (pinfo.type == MYSQL_TYPE_LONGLONG)
         {
+            uint64_t tmp= PyLong_AsLongLong(paramvalue.value);
+
+            if (tmp == (uint64_t)-1 && PyErr_Occurred)
+            {
+              param->is_unsigned= 1;
+              PyErr_Clear();
+            }
             if (pinfo.bits > bits)
             {
                 bits= (uint32_t)pinfo.bits;
             }
+
         }
 
         if (!param->buffer_type ||

testing/test/integration/test_cursor.py

@@ -1645,6 +1645,23 @@ class TestCursor(unittest.TestCase):
         self.assertEqual(cursor.rowcount, 4)
         cursor.close()
 
+    def test_conpy289(self):
+        with create_connection() as conn:
+            cursor= conn.cursor()
+            cursor.execute("CREATE OR REPLACE TABLE t289 (a bigint unsigned,"\
+                           "b bigint unsigned, c bigint unsigned,"\
+                           "d bigint unsigned)")
+
+            data= [(0, 9232974212090577672, 11529232914765115761, 58),
+                   (0, 13837380911034793984, 11529233872889843812, 0),
+                   (0, 0, 2351636844950589488, 9999)]
+
+            cursor.executemany("insert into t289 values (?,?,?,?)", data)
+
+            cursor.execute("SELECT * FROM t289")
+            rows= cursor.fetchall()
+            self.assertEqual(rows, data)
+
     def test_conpy91(self):
         with create_connection() as connection:
             with connection.cursor() as cursor: