From ba660ecde20544ac1cfc163a5586f4f202627afa Mon Sep 17 00:00:00 2001 From: Mark Haines Date: Wed, 16 Mar 2016 10:35:00 +0000 Subject: [PATCH] Add a comment to offer a hint to an explanation for why we have a unique constraint on (app_id, pushkey, user_id) --- synapse/storage/schema/delta/30/deleted_pushers.sql | 1 + 1 file changed, 1 insertion(+) diff --git a/synapse/storage/schema/delta/30/deleted_pushers.sql b/synapse/storage/schema/delta/30/deleted_pushers.sql index cdcf79ac81..712c454aa1 100644 --- a/synapse/storage/schema/delta/30/deleted_pushers.sql +++ b/synapse/storage/schema/delta/30/deleted_pushers.sql @@ -18,6 +18,7 @@ CREATE TABLE IF NOT EXISTS deleted_pushers( app_id TEXT NOT NULL, pushkey TEXT NOT NULL, user_id TEXT NOT NULL, + /* We only track the most recent delete for each app_id, pushkey and user_id. */ UNIQUE (app_id, pushkey, user_id) );