@Override
  public String extractCatalog(CaseInsensitiveStringMap options) {
    return catalogAndIdentifier(options).catalog().name();
  }
Spark DataSource register base for mixed format
amoro-format-mixed/amoro-mixed-spark/amoro-mixed-spark-3-common/src/main/java/org/apache/amoro/spark/mixed/MixedSourceBase.java