outerJoinExpr = outerJoinDesc.makeExprNode(exprEvaluatorContext);
}
if (historicalStreamIndexLists[toStream] == null)
{
historicalStreamIndexLists[toStream] = new HistoricalStreamIndexList(toStream, typesPerStream, queryGraph);
}
historicalStreamIndexLists[toStream].addIndex(fromStream);
historicalPlans[i] = new HistoricalDataPlanNode(toStream, rootStreamNum, fromStream, typesPerStream.length, outerJoinExpr);
}
else