From 93937b2b313e5b1020d21f3f2cad404ecff659c2 Mon Sep 17 00:00:00 2001 From: Erik Johnston Date: Fri, 10 Apr 2015 18:47:03 +0100 Subject: [PATCH] Remove duplicate rows --- synapse/storage/schema/delta/16/remove_duplicates.sql | 9 +++++++++ 1 file changed, 9 insertions(+) create mode 100644 synapse/storage/schema/delta/16/remove_duplicates.sql diff --git a/synapse/storage/schema/delta/16/remove_duplicates.sql b/synapse/storage/schema/delta/16/remove_duplicates.sql new file mode 100644 index 0000000000..65c97b5e2f --- /dev/null +++ b/synapse/storage/schema/delta/16/remove_duplicates.sql @@ -0,0 +1,9 @@ + + +DELETE FROM event_to_state_groups WHERE state_group not in ( + SELECT MAX(state_group) FROM event_to_state_groups GROUP BY event_id +); + +DELETE FROM event_to_state_groups WHERE rowid not in ( + SELECT MIN(rowid) FROM event_to_state_groups GROUP BY event_id +);