/// <summary>
/// Adds an order by clause to the query, where the order by clause will be in descending order.
/// </summary>
/// <typeparam name="TRecord">The record type of the query builder</typeparam>
/// <param name="queryBuilder">The query builder</param>
/// <param name="expression">An expression to return a column from a record. This will be used to determine the name of the column that the query should be ordered by</param>
/// <returns>The query builder that can be used to further modify the query, or execute the query</returns>
public static IOrderedQueryBuilder <TRecord> ThenByDescending <TRecord>(this IOrderedQueryBuilder <TRecord> queryBuilder, Expression <Func <TRecord, object> > expression)
where TRecord : class => queryBuilder.ThenByDescending(GetColumnName(expression.Body));
public static IOrderedQueryBuilder <TRecord> ThenBy <TRecord>(this IOrderedQueryBuilder <TRecord> queryBuilder,
string orderByClause) where TRecord : class
{
return(queryBuilder.OrderBy(orderByClause));
}