BUG#28641350: mysqlx.result.Row objects cannot be printed directly

Printing a mysqlx.result.Row object shows the generic representation of
a class in Python.

This patch implements the __repr__ method in mysqlx.result.Row class so
the row values are shown.

Author: nmariz

CHANGES.txt

@@ -13,6 +13,7 @@ v8.0.27
 
 - WL#14689: Fallback conversion to str for types incompatible with MySQL
 - WL#14664: Allow SSPI Kerberos library usage with c-ext
+- BUG#28641350: mysqlx.result.Row objects cannot be printed directly
 
 v8.0.26
 =======

lib/mysqlx/result.py

@@ -766,6 +766,9 @@ def __init__(self, rs, fields):
         self._fields = fields
         self._resultset = rs
 
+    def __repr__(self):
+        return repr(self._fields)
+
     def __getitem__(self, index):
         """Returns the value of a column by name or index.
 

tests/test_mysqlx_crud.py

@@ -2564,10 +2564,20 @@ def test_select(self):
                          "".format(table_name)).execute()
 
         table = self.schema.get_table("test")
+
+        # test fetch_one()
+        result = table.select("age", "name").where("age = 21").execute()
+        row = result.fetch_one()
+        self.assertEqual(repr(row), repr([21, "Fred"]))
+
         result = table.select().order_by("age DESC").execute()
         rows = result.fetch_all()
         self.assertEqual(4, len(rows))
         self.assertEqual(67, rows[0]["age"])
+        self.assertEqual(
+            repr(rows),
+            repr([[67, "Betty"], [42, "Wilma"], [28, "Barney"], [21, "Fred"]])
+        )
 
         result = table.select("age").where("age = 42").execute()
         self.assertEqual(1, len(result.columns))