How to open column families

[Sceat]

I tried using rocksdb to read some files and it seems nothing is accessed

import rocksdb from 'rocksdb'

const db = rocksdb('./sui')

try {
  console.log('Opening database...')

  await new Promise((resolve, reject) => {
    db.open({ readOnly: true }, error => {
      if (error) reject(error)
      else resolve()
    })
  })

  console.log('Database opened')

  for await (const [key, value] of db.iterator()) {
    console.dir({ key, value })
  }
} catch (error) {
  console.error(error)
}

---

While if I try level-rocksdb for the same files, it prints this error below, meaning there is actual datas but i'd assume rocksdb is only reading the empty default column.

How do you specify the column to read ?

Error [OpenError]: Invalid argument: Column families not opened: randomness_last_round_timestamp, randomness_highest_completed_round, randomness_next_round, randomness_rounds_pending, dkg_output, dkg_confirmations, dkg_confirmations_v2, dkg_used_messages, dkg_used_messages_v2, dkg_processed_messages, dkg_processed_messages_v2, randomness_rounds_written, deferred_transactions, active_jwks, pending_jwks, oauth_provider_jwk, executed_transactions_to_checkpoint, override_protocol_upgrade_buffer_stake, authority_capabilities, running_root_accumulators, state_hash_by_checkpoint, builder_checkpoint_summary_v2, builder_checkpoint_summary, user_signatures_for_checkpoints, pending_checkpoint_signatures, transaction_key_to_digest, builder_digest_to_checkpoint, pending_checkpoints_v2, pending_checkpoints, final_epoch_checkpoint, end_of_publish, reconfig_state, checkpoint_boundary, last_consensus_stats, last_consensus_index, consensus_message_order, pending_consensus_transactions, consensus_message_processed, pending_execution, next_shared_object_versions, assigned_shared_object_versions_v2, assigned_shared_object_versions, executed_in_epoch, transaction_cert_signatures, signed_effects_digests, effects_signatures, owned_object_locked_transactions, signed_transactions