protected virtual void BuildGroupByPart (SqlStatement sqlStatement, ISqlCommandBuilder commandBuilder)
{
ArgumentUtility.CheckNotNull ("sqlStatement", sqlStatement);
ArgumentUtility.CheckNotNull ("commandBuilder", commandBuilder);
if (sqlStatement.GroupByExpression != null)
{
commandBuilder.Append (" GROUP BY ");
_stage.GenerateTextForGroupByExpression (commandBuilder, sqlStatement.GroupByExpression);
}
}