Clarify comment

This commit is contained in:
Erik Johnston 2018-05-16 11:47:26 +01:00
parent 43e6e82c4d
commit 680530cc7f
1 changed files with 2 additions and 1 deletions

View File

@ -1931,7 +1931,8 @@ class EventsStore(EventsWorkerStore):
logger.info("[purge] Finding new backward extremities")
# We calculate the new entries for the backward extremeties by finding
# all events that point to events that are to be purged
# events to be purged that are pointed to by events we're not going to
# purge.
txn.execute(
"SELECT DISTINCT e.event_id FROM events_to_purge AS e"
" INNER JOIN event_edges AS ed ON e.event_id = ed.prev_event_id"