More lintage (flake8)

datacube/drivers/postgis/_api.py

@@ -675,6 +675,7 @@ def search_datasets(self, expressions,
                                                   select_fields, with_source_ids,
                                                   limit, geom=geom, archived=archived)
         _LOG.debug("search_datasets SQL: %s", str(select_query))
+
         def decode_row(raw):
             return {f.name: f.normalise_value(r) for r, f in zip(raw, select_fields)}