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SYN-178: Fix off by one.

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This commit is contained in:
Kegan Dougal 2015-01-12 17:38:30 +00:00
parent d8fcc4e00a
commit c43d898119
1 changed files with 6 additions and 2 deletions
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8
synapse/storage/stream.py
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@ -284,8 +284,12 @@ class StreamStore(SQLBaseStore):
rows.reverse() # As we selected with reverse ordering
if rows:
topo = rows[0]["topological_ordering"]
toke = rows[0]["stream_ordering"]
# XXX: Always subtract 1 since the start token always goes
# backwards (parity with paginate_room_events). It isn't
# obvious that this is correct; we should clarify the algorithm
# used here.
topo = rows[0]["topological_ordering"] - 1
toke = rows[0]["stream_ordering"] - 1
start_token = "t%s-%s" % (topo, toke)
token = (start_token, end_token)