/// <summary>
/// Add an equivalent aggregation function node
/// </summary>
/// <param name="aggNodeToAdd">node to add</param>
public void AddEquivalent(ExprAggregateNode aggNodeToAdd)
{
if (EquivalentNodes == null) {
EquivalentNodes = new List<ExprAggregateNode>();
}
EquivalentNodes.Add(aggNodeToAdd);
}
/// <summary>
/// Returns a string representation of the node without any SWUM markup.
/// </summary>
public override string ToPlainString()
{
StringBuilder sb = new StringBuilder();
if (EquivalentNodes != null)
{
for (int i = 0; i < EquivalentNodes.Count - 1; i++)
{
sb.AppendFormat("{0}|", EquivalentNodes[i].ToPlainString());
}
sb.Append(EquivalentNodes.Last().ToPlainString());
}
return(sb.ToString());
}