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| -rw-r--r-- | synapse/storage/events.py | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/synapse/storage/events.py b/synapse/storage/events.py index c2136f3fd1..b582942164 100644 --- a/synapse/storage/events.py +++ b/synapse/storage/events.py @@ -1325,6 +1325,9 @@ class EventsStore(SQLBaseStore): max_depth = max(row[0] for row in rows) if max_depth <= topological_ordering: + # We need to ensure we don't delete all the events from the datanase + # otherwise we wouldn't be able to send any events (due to not + # having any backwards extremeties) raise SynapseError( 400, "topological_ordering is greater than forward extremeties" ) |