public static boolean isMixedHiveCatalog(MixedFormatCatalog mixedCatalog) {
    return mixedCatalog instanceof MixedHiveCatalog;
  }
check if the catalog is mixed-hive catalog

@param mixedCatalog target mixed catalog
@return Whether mixed-hive catalog.
amoro-format-mixed/amoro-mixed-hive/src/main/java/org/apache/amoro/hive/utils/CatalogUtil.java