public Field this[string name]
{
get
{
var fields = from f in _fields where f.Name == name select f;
if (fields.Count() > 0)
{
return fields.Single();
}
else
{
Field f = new Field(this, name);
_fields.Add(f);
return f;
}
}
}
public static Aggregate Sum(Field aggregate)
{
return new Sum(aggregate);
}
public static Aggregate Min(Field aggregate)
{
return new Min(aggregate);
}
public static Aggregate Max(Field aggregate)
{
return new Max(aggregate);
}
public static Aggregate Count(Field aggregate)
{
return new Count(aggregate);
}
public static Aggregate Avg(Field aggregate)
{
return new Avg(aggregate);
}