/// <summary>
/// Get the intermediate result tables of the given pattern group
/// </summary>
internal static void EvaluatePatterns(RDFConstructQuery query, RDFPatternGroup patternGroup, Object graphOrStore)
{
query.PatternResultTables[patternGroup] = new List <DataTable>();
//Iterate over the patterns of the pattern group
foreach (RDFPattern pattern in patternGroup.Patterns)
{
//Apply the pattern to the graph/store
DataTable patternResultsTable = graphOrStore is RDFGraph?RDFQueryEngine.ApplyPattern(pattern, (RDFGraph)graphOrStore)
: RDFQueryEngine.ApplyPattern(pattern, (RDFStore)graphOrStore);
//Set the name and the optionality metadata of the result datatable
patternResultsTable.TableName = pattern.ToString();
patternResultsTable.ExtendedProperties.Add("IsOptional", pattern.IsOptional);
patternResultsTable.ExtendedProperties.Add("JoinAsUnion", pattern.JoinAsUnion);
//Save the result datatable
query.PatternResultTables[patternGroup].Add(patternResultsTable);
}
}