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authorErik Johnston <erik@matrix.org>2014-08-29 13:28:02 +0100
committerErik Johnston <erik@matrix.org>2014-08-29 13:28:06 +0100
commitee06023573811a06853d28b613cc823282aa3490 (patch)
tree0def411f45674ae0e631465d0fbbf1d40c9fadd8 /synapse/storage/stream.py
parentMerge branch 'develop' of github.com:matrix-org/synapse into develop (diff)
downloadsynapse-ee06023573811a06853d28b613cc823282aa3490.tar.xz
Get the equalities right.
Diffstat (limited to '')
-rw-r--r--synapse/storage/stream.py7
1 files changed, 5 insertions, 2 deletions
diff --git a/synapse/storage/stream.py b/synapse/storage/stream.py
index 4945b0796e..0b78222827 100644
--- a/synapse/storage/stream.py
+++ b/synapse/storage/stream.py
@@ -205,8 +205,11 @@ class StreamStore(SQLBaseStore):
                              with_feedback=False):
         # TODO (erikj): Handle compressed feedback
 
-        from_comp = '<' if direction =='b' else '>'
-        to_comp = '>' if direction =='b' else '<'
+        # Tokens really represent positions between elements, but we use
+        # the convention of pointing to the event before the gap. Hence
+        # we have a bit of asymmetry when it comes to equalities.
+        from_comp = '<=' if direction =='b' else '>'
+        to_comp = '>' if direction =='b' else '<='
         order = "DESC" if direction == 'b' else "ASC"
 
         args = [room_id]