本文整理汇总了C#中Deveel.Data.Sql.Expressions.SqlExpression.HasAggregate方法的典型用法代码示例。如果您正苦于以下问题：C# SqlExpression.HasAggregate方法的具体用法？C# SqlExpression.HasAggregate怎么用？C# SqlExpression.HasAggregate使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Deveel.Data.Sql.Expressions.SqlExpression的用法示例。
在下文中一共展示了SqlExpression.HasAggregate方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: FilterHaving
private SqlExpression FilterHaving(SqlExpression havingExpression, IList<SqlExpression> aggregates,
IQueryContext context)
{
if (havingExpression is SqlBinaryExpression) {
var binary = (SqlBinaryExpression) havingExpression;
var expType = binary.ExpressionType;
var newLeft = FilterHaving(binary.Left, aggregates, context);
var newRight = FilterHaving(binary.Right, aggregates, context);
return SqlExpression.Binary(newLeft, expType, newRight);
}
// Not logical so determine if the expression is an aggregate or not
if (havingExpression.HasAggregate(context)) {
// Has aggregate functions so we must WriteByte this expression on the
// aggregate list.
aggregates.Add(havingExpression);
var name = new ObjectName(FunctionTableName, String.Format("HAVINGAGG_{0}", aggregates.Count));
return SqlExpression.Reference(name);
}
return havingExpression;
}