@Override
  public String getCpuProfile(int profileDurationInSec) throws TException {
    return "";
  }
Return the schema of the table. This function includes partition columns
in addition to the regular columns.

@param db
         Name of the database
@param tableName
         Name of the table
@param envContext
         Store session based properties
@return List of columns, each column is a FieldSchema structure
@throws MetaException
@throws UnknownTableException
@throws UnknownDBException
standalone-metastore/metastore-server/src/main/java/org/apache/hadoop/hive/metastore/HMSHandler.java