Note that we don't specify execution order

10 years ago · d56c01fff4
parent 17d319a20d
commit d56c01fff4
1 changed files with 4 additions and 0 deletions
--- a/synapse/storage/init.py
+++ b/synapse/storage/init.py
@ -691,6 +691,10 @@ def _upgrade_existing_database(cur, current_version, applied_delta_files,
    even if there has been no version bump. This is useful for development
    where orthogonal schema changes may happen on separate branches.

+    Different delta files for the same version *must* be orthogonal and give
+    the same result when applied in any order. No guarantees are made on the
+    order of execution of these scripts.
+
    This is a no-op of current_version == SCHEMA_VERSION.

    Example directory structure: