@Override
  public boolean shouldStoreFieldsInMetastore(Map<String, String> tableParams) {
    return true;
  }
If the table already exists then returns the list of the current Iceberg partition column names.
If the table is not partitioned by Iceberg, or the table does not exist yet then returns an empty list.
@return The name of the Iceberg partition columns.
iceberg/iceberg-handler/src/main/java/org/apache/iceberg/mr/hive/HiveIcebergSerDe.java