Now that we query `node_announcements` and filter by `seen` and
`public_key` we should have an index over them, which we add here.
CREATE UNIQUE INDEX IF NOT EXISTS channel_updates_key ON channel_updates (short_channel_id, direction, timestamp);
CREATE INDEX IF NOT EXISTS channel_updates_seen ON channel_updates(seen);
CREATE INDEX IF NOT EXISTS channel_updates_scid_asc_timestamp_desc ON channel_updates(short_channel_id ASC, timestamp DESC);
+ CREATE INDEX IF NOT EXISTS node_announcements_seen_pubkey ON node_announcements(seen, public_key);
"
}