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Foreign key on rooms, SQL comment

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This commit is contained in:
Olivier Wilkinson (reivilibre)
2020-08-26 20:16:23 +01:00
parent 84dbc43ce1
commit 2c740a79d3
1 changed files with 6 additions and 2 deletions
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8
synapse/storage/databases/main/schema/delta/58/11recovery_after_outage.sql
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@@ -18,7 +18,10 @@
-- This stores, for each (destination, room) pair, the event_id and stream_ordering
-- of the latest event for that destination.
CREATE TABLE IF NOT EXISTS destination_rooms (
-- the destination in question
-- the destination in question.
-- Can not be a foreign key because rows in the `destinations` table will
-- only be created when we back off or when we successfully send a
-- transaction.
destination TEXT NOT NULL,
-- the ID of the room in question
room_id TEXT NOT NULL,
@@ -26,7 +29,8 @@ CREATE TABLE IF NOT EXISTS destination_rooms (
stream_ordering INTEGER,
-- the event_id of the event
event_id TEXT NOT NULL,
PRIMARY KEY (destination, room_id)
PRIMARY KEY (destination, room_id),
FOREIGN KEY (room_id) REFERENCES rooms (room_id)
);
-- this column tracks the stream_ordering of the event that was most recently