create_table_queue: >
  CREATE TABLE IF NOT EXISTS queue(
    id TEXT PRIMARY KEY NOT NULL ON CONFLICT REPLACE,
    name TEXT NOT NULL ON CONFLICT REPLACE,
    fire_at INTEGER NOT NULL ON CONFLICT REPLACE,
    value TEXT,
    created_at INTEGER DEFAULT(UNIXEPOCH()) NOT NULL ON CONFLICT REPLACE
  ) WITHOUT ROWID;

create_index_queue_by_name: >
  CREATE INDEX IF NOT EXISTS idx_queue_by_name ON queue(name, fire_at ASC);