public AggrStats getAggrColStatsFor(String dbName, String tblName,
      List<String> colNames, List<String> partName, boolean checkTransactional) throws HiveException {
    Table tbl = getTable(dbName, tblName);
    return getAggrColStatsFor(tbl, colNames, partName, checkTransactional);
  }
@return the metastore client for the current thread
@throws MetaException
ql/src/java/org/apache/hadoop/hive/ql/metadata/Hive.java