fix: Spanner auto managed indexes should not be introspected (#241)

Author: Ilya Gurov

google/cloud/sqlalchemy_spanner/sqlalchemy_spanner.py

@@ -689,7 +689,9 @@ def get_indexes(self, connection, table_name, schema=None, **kw):
 WHERE
     i.table_name="{table_name}"
     AND i.index_type != 'PRIMARY_KEY'
+    AND i.spanner_is_managed = FALSE
 GROUP BY i.index_name, i.is_unique
+ORDER BY i.index_name
 """.format(
             table_name=table_name
         )

test/test_suite_13.py

@@ -939,6 +939,13 @@ def test_array_reflection(self):
 
         tab.drop()
 
+    def _assert_insp_indexes(self, indexes, expected_indexes):
+        expected_indexes.sort(key=lambda item: item["name"])
+
+        index_names = [d["name"] for d in indexes]
+        exp_index_names = [d["name"] for d in expected_indexes]
+        assert sorted(index_names) == sorted(exp_index_names)
+
 
 class CompositeKeyReflectionTest(_CompositeKeyReflectionTest):
     @testing.requires.foreign_key_constraint_reflection

test/test_suite_14.py

@@ -701,6 +701,13 @@ def test_get_temp_table_unique_constraints(self):
     def test_get_temp_table_columns(self):
         pass
 
+    def _assert_insp_indexes(self, indexes, expected_indexes):
+        expected_indexes.sort(key=lambda item: item["name"])
+
+        index_names = [d["name"] for d in indexes]
+        exp_index_names = [d["name"] for d in expected_indexes]
+        assert sorted(index_names) == sorted(exp_index_names)
+
 
 class CompositeKeyReflectionTest(_CompositeKeyReflectionTest):
     @testing.requires.foreign_key_constraint_reflection