@Override
  public List<String> listSchemaNames(ConnectorSession session) {
    return mixedFormatCatalog.listDatabases().stream()
        .map(s -> s.toLowerCase(Locale.ROOT))
        .collect(Collectors.toList());
  }
{@link MixedFormatConnectorMetadata} is a Union {@link ConnectorMetadata} contain {@link
KeyedConnectorMetadata} and {@link IcebergMetadata}. This is final {@link ConnectorMetadata}
provided to Trino
amoro-format-mixed/amoro-mixed-trino/src/main/java/org/apache/amoro/trino/MixedFormatConnectorMetadata.java