diff --git a/tests/test_op_sql_execute.py b/tests/test_op_sql_execute.py
index 9d61232..cb2744a 100644
--- a/tests/test_op_sql_execute.py
+++ b/tests/test_op_sql_execute.py
@@ -5,6 +5,11 @@
 
 
 class SQLExecuteTestCase(BaseTarantoolTestCase):
+    def _compat_field_name(self, field_name: str) -> str:
+        if self.conn.version >= (3, 0):
+            return field_name
+        return field_name.upper()
+
     @ensure_version(min=(2, 0))
     async def test__sql_basic(self):
         res = await self.conn.execute("select 1, 2")
@@ -24,7 +29,10 @@ async def test__sql_with_param(self):
     async def test__sql_with_param_cols(self):
         res = await self.conn.execute("select 1 as a, 2 as b where 1 = ?", [1])
 
-        self.assertResponseEqualKV(res, [{"a": 1, "b": 2}], "Body ok")
+        self.assertResponseEqualKV(res, [{
+            self._compat_field_name("a"): 1,
+            self._compat_field_name("b"): 2,
+        }], "Body ok")
 
     @ensure_version(min=(2, 0))
     async def test__sql_with_param_cols2(self):
@@ -32,7 +40,10 @@ async def test__sql_with_param_cols2(self):
             "select 1 as a, 2 as b where 1 = ? and 2 = ?", [1, 2]
         )
 
-        self.assertResponseEqualKV(res, [{"a": 1, "b": 2}], "Body ok")
+        self.assertResponseEqualKV(res, [{
+            self._compat_field_name("a"): 1,
+            self._compat_field_name("b"): 2,
+        }], "Body ok")
 
     @ensure_version(min=(2, 0))
     async def test__sql_with_param_cols_maps(self):
@@ -44,16 +55,22 @@ async def test__sql_with_param_cols_maps(self):
             ],
         )
 
-        self.assertResponseEqualKV(res, [{"a": 1, "b": 2}], "Body ok")
+        self.assertResponseEqualKV(res, [{
+            self._compat_field_name("a"): 1,
+            self._compat_field_name("b"): 2,
+        }], "Body ok")
 
     @ensure_version(min=(2, 0))
     async def test__sql_with_param_cols_maps_and_positional(self):
         res = await self.conn.execute(
-            "select 1 as a, 2 as b " "where 1 = :p1 and 2 = :p2 and 3 = ? and 4 = ?",
+            "select 1 as a, 2 as b where 1 = :p1 and 2 = :p2 and 3 = ? and 4 = ?",
             [{":p1": 1}, {":p2": 2}, 3, 4],
         )
 
-        self.assertResponseEqualKV(res, [{"a": 1, "b": 2}], "Body ok")
+        self.assertResponseEqualKV(res, [{
+            self._compat_field_name("a"): 1,
+            self._compat_field_name("b"): 2,
+        }], "Body ok")
 
     @ensure_version(min=(2, 0))
     async def test__sql_insert(self):
@@ -127,10 +144,10 @@ async def test__sql_select(self):
 
         res = await self.conn.execute("select * from sql_space")
         self.assertEqual(2, res.rowcount, "rowcount is surely ok")
-        self.assertEqual(1, res.body[0]["id"])
-        self.assertEqual("one", res.body[0]["name"])
-        self.assertEqual(2, res.body[1]["id"])
-        self.assertEqual("two", res.body[1]["name"])
+        self.assertEqual(1, res.body[0][self._compat_field_name("id")])
+        self.assertEqual("one", res.body[0][self._compat_field_name("name")])
+        self.assertEqual(2, res.body[1][self._compat_field_name("id")])
+        self.assertEqual("two", res.body[1][self._compat_field_name("name")])
 
     @ensure_version(min=(2, 0))
     async def test__sql_delete_multiple(self):
@@ -166,9 +183,9 @@ async def test__metadata_names(self):
         self.assertIsNotNone(res.metadata.fields)
         self.assertEqual(2, len(res.metadata.fields))
 
-        self.assertEqual("a", res.metadata.fields[0].name)
+        self.assertEqual(self._compat_field_name("a"), res.metadata.fields[0].name)
         self.assertEqual("integer", res.metadata.fields[0].type)
-        self.assertEqual("b", res.metadata.fields[1].name)
+        self.assertEqual(self._compat_field_name("b"), res.metadata.fields[1].name)
         self.assertEqual("integer", res.metadata.fields[1].type)
 
     @ensure_version(min=(2, 0))
@@ -181,13 +198,13 @@ async def test__metadata_actual_space(self):
         res = await self.conn.execute("select * from sql_space")
         self.assertEqual(2, res.rowcount, "rowcount is ok")
         self.assertEqual(2, len(res.metadata.fields))
-        self.assertEqual("id", res.metadata.fields[0].name)
+        self.assertEqual(self._compat_field_name("id"), res.metadata.fields[0].name)
         self.assertEqual("integer", res.metadata.fields[0].type)
         self.assertIsNone(res.metadata.fields[0].is_nullable)
         self.assertIsNone(res.metadata.fields[0].is_autoincrement)
         self.assertIsNone(res.metadata.fields[0].collation)
 
-        self.assertEqual("name", res.metadata.fields[1].name)
+        self.assertEqual(self._compat_field_name("name"), res.metadata.fields[1].name)
         self.assertEqual("string", res.metadata.fields[1].type)
         self.assertIsNone(res.metadata.fields[1].is_nullable)
         self.assertIsNone(res.metadata.fields[1].is_autoincrement)
@@ -207,13 +224,13 @@ async def test__sql_select_full_metadata(self):
         try:
             res = await self.conn.execute("select * from sql_space")
             self.assertEqual(2, len(res.metadata.fields))
-            self.assertEqual("id", res.metadata.fields[0].name)
+            self.assertEqual(self._compat_field_name("id"), res.metadata.fields[0].name)
             self.assertEqual("integer", res.metadata.fields[0].type)
             self.assertEqual(False, res.metadata.fields[0].is_nullable)
             self.assertEqual(None, res.metadata.fields[1].is_autoincrement)
             self.assertIsNone(res.metadata.fields[0].collation)
 
-            self.assertEqual("name", res.metadata.fields[1].name)
+            self.assertEqual(self._compat_field_name("name"), res.metadata.fields[1].name)
             self.assertEqual("string", res.metadata.fields[1].type)
             self.assertEqual(True, res.metadata.fields[1].is_nullable)
             self.assertEqual(None, res.metadata.fields[1].is_autoincrement)