public override IDataExecutionPlanNode FoldQuery(IDictionary <string, DataSource> dataSources, IQueryExecutionOptions options, IDictionary <string, Type> parameterTypes, IList <OptimizerHint> hints)
{
Source = Source.FoldQuery(dataSources, options, parameterTypes, hints);
Source.Parent = this;
SelectNode.FoldFetchXmlColumns(Source, ColumnSet, dataSources, parameterTypes);
SelectNode.ExpandWildcardColumns(Source, ColumnSet, dataSources, parameterTypes);
if (Source is FetchXmlScan fetchXml)
{
// Check if all the source and output column names match. If so, just change the alias of the source FetchXML
if (ColumnSet.All(col => col.SourceColumn == $"{fetchXml.Alias}.{col.OutputColumn}"))
{
fetchXml.Alias = Alias;
return(fetchXml);
}
}
return(this);
}