23 lines
907 B
SQL
23 lines
907 B
SQL
-- 0007_read_history_events: persist readHistory update events for getDifference.
|
||
--
|
||
-- updateReadHistoryInbox：真正发生已读推进时递增 pts，并给其它 session / getDifference 留可补偿事件。
|
||
|
||
ALTER TABLE update_events
|
||
ADD COLUMN IF NOT EXISTS peer_type VARCHAR(16),
|
||
ADD COLUMN IF NOT EXISTS peer_id BIGINT,
|
||
ADD COLUMN IF NOT EXISTS max_id INT NOT NULL DEFAULT 0,
|
||
ADD COLUMN IF NOT EXISTS still_unread_count INT NOT NULL DEFAULT 0;
|
||
|
||
ALTER TABLE update_events
|
||
DROP CONSTRAINT IF EXISTS update_events_type_check;
|
||
|
||
ALTER TABLE update_events
|
||
ADD CONSTRAINT update_events_type_check
|
||
CHECK (event_type IN ('new_message', 'read_history_inbox'));
|
||
|
||
ALTER TABLE update_events
|
||
DROP CONSTRAINT IF EXISTS update_events_peer_type_check;
|
||
|
||
ALTER TABLE update_events
|
||
ADD CONSTRAINT update_events_peer_type_check
|
||
CHECK (peer_type IS NULL OR peer_type IN ('user'));
|