BUG28627768: JSON_REPLACE NOT WORKING CORRECTLY FOR SQL TABLES

This patch adds a test case for JSON_REPLACE usege, which requires the use of
mysql.expr method to correctly evaluate an expresion.

Author: isrgomez

lib/mysqlx/__init__.py

@@ -1,4 +1,4 @@
-# Copyright (c) 2016, 2019, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2016, 2020, Oracle and/or its affiliates. All rights reserved.
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License, version 2.0, as

tests/test_mysqlx_crud.py

@@ -2527,6 +2527,11 @@ def test_update(self):
         result = statement.where( "name = 'Barney' or name = 'Betty'").execute()
         assert (2 == result.get_affected_items_count())
 
+        statement =  table.update()
+        statement.set("info", mysqlx.expr("JSON_REPLACE(info, '$.married', False)"))
+        result = statement.where( "name = 'Fred' or name = 'Wilma'").execute()
+        assert (2 == result.get_affected_items_count())
+
         drop_table(self.schema, "test")
 
     def test_delete(self):