forked-synapse/synapse/storage/schema/delta/15/v15.sql

-- Drop, copy & recreate pushers table to change unique key
-- Also add access_token column at the same time
CREATE TABLE IF NOT EXISTS pushers2 (
  id INTEGER PRIMARY KEY AUTOINCREMENT,
  user_name TEXT NOT NULL,
  access_token INTEGER DEFAULT NULL,
  profile_tag varchar(32) NOT NULL,
  kind varchar(8) NOT NULL,
  app_id varchar(64) NOT NULL,
  app_display_name varchar(64) NOT NULL,
  device_display_name varchar(128) NOT NULL,
  pushkey blob NOT NULL,
  ts BIGINT NOT NULL,
  lang varchar(8),
  data blob,
  last_token TEXT,
  last_success BIGINT,
  failing_since BIGINT,
  FOREIGN KEY(user_name) REFERENCES users(name),
  UNIQUE (app_id, pushkey, user_name)
);
INSERT INTO pushers2 (id, user_name, profile_tag, kind, app_id, app_display_name, device_display_name, pushkey, ts, lang, data, last_token, last_success, failing_since)
  SELECT id, user_name, profile_tag, kind, app_id, app_display_name, device_display_name, pushkey, ts, lang, data, last_token, last_success, failing_since FROM pushers;
DROP TABLE pushers;
ALTER TABLE pushers2 RENAME TO pushers;