diff --git a/django/db/backends/base/introspection.py b/django/db/backends/base/introspection.py
index d661e1fc0d..10c04abece 100644
--- a/django/db/backends/base/introspection.py
+++ b/django/db/backends/base/introspection.py
@@ -140,6 +140,17 @@ class BaseDatabaseIntrospection:
         """
         raise NotImplementedError('subclasses of BaseDatabaseIntrospection may require a get_sequences() method')
 
+    def get_relations(self, cursor, table_name):
+        """
+        Return a dictionary of
+        {field_name: (field_name_other_table, other_table)} representing all
+        relationships to the given table.
+        """
+        raise NotImplementedError(
+            'subclasses of BaseDatabaseIntrospection may require a '
+            'get_relations() method.'
+        )
+
     def get_key_columns(self, cursor, table_name):
         """
         Backends can override this to return a list of:
diff --git a/tests/backends/base/test_introspection.py b/tests/backends/base/test_introspection.py
index 5ad9c4f5e0..ac1785ec92 100644
--- a/tests/backends/base/test_introspection.py
+++ b/tests/backends/base/test_introspection.py
@@ -26,6 +26,11 @@ class SimpleDatabaseIntrospectionTests(SimpleTestCase):
         with self.assertRaisesMessage(NotImplementedError, msg):
             self.introspection.get_sequences(None, None)
 
+    def test_get_relations(self):
+        msg = self.may_require_msg % 'get_relations'
+        with self.assertRaisesMessage(NotImplementedError, msg):
+            self.introspection.get_relations(None, None)
+
     def test_get_key_columns(self):
         msg = self.may_require_msg % 'get_key_columns'
         with self.assertRaisesMessage(NotImplementedError, msg):