chain_metadata
columns and relationships of "chain_metadata"
type chain_metadata {
  block_height: Int!
  chain_id: Int!
  end_block: Int
  first_event_block_number: Int
  is_hyper_sync: Boolean!
  latest_fetched_block_number: Int!
  latest_processed_block: Int
  num_batches_fetched: Int!
  num_events_processed: Int
  start_block: Int!
  timestamp_caught_up_to_head_or_endblock: timestamptz
}