public void addColumnFamily(String columnFamilyName, ColumnFamilyOptions columnFamilyOptions) {
    Preconditions.checkArgument(!closed);

    descriptorMap.computeIfAbsent(
        columnFamilyName,
        colFamilyName -> {
          try {
            ColumnFamilyDescriptor descriptor =
                getColumnFamilyDescriptor(colFamilyName.getBytes(), columnFamilyOptions);
            ColumnFamilyHandle handle = rocksDB.createColumnFamily(descriptor);
            handleMap.put(colFamilyName, handle);
            return descriptor;
          } catch (RocksDBException e) {
            throw new AmoroIOException(e);
          }
        });
  }
Add a new column family to store.

@param columnFamilyName Column family name
amoro-format-iceberg/src/main/java/org/apache/amoro/utils/map/RocksDBBackend.java