Removes the unsupported "ON CONFLICT DO NOTHING" clause

django_redshift_backend/base.py

@@ -49,6 +49,7 @@ class DatabaseFeatures(BasePGDatabaseFeatures):
     has_native_uuid_field = False
     supports_aggregate_filter_clause = False
     supports_combined_alters = False          # since django-1.8
+    supports_ignore_conflicts = False
 
     # If support atomic for ddl, we should implement non-atomic migration for on rename and change type(size)
     # refs django-redshift-backend #96
@@ -113,6 +114,10 @@ def distinct_sql(self, fields, *args):
             )
         return super(DatabaseOperations, self).distinct_sql(fields, *args)
 
+    def ignore_conflicts_suffix_sql(self, ignore_conflicts=None):
+        return ''
+
+
 
 def _get_type_default(field):
     internal_type = field.get_internal_type()