public static boolean isLegacyMixedIceberg(
      org.apache.amoro.server.table.TableMetadata internalTableMetadata) {
    return TableFormat.MIXED_ICEBERG.equals(internalTableMetadata.getFormat())
        && !Boolean.parseBoolean(
            internalTableMetadata.getProperties().get(MIXED_ICEBERG_BASED_REST));
  }
Check if this table is created before version 0.7.0

@param internalTableMetadata table metadata.
@return true if this table is created before version 0.7.0
amoro-ams/src/main/java/org/apache/amoro/server/utils/InternalTableUtil.java