return null;
}
currWork.setOpParseCtxMap(parseCtx.getOpParseCtx());
currWork.setJoinTree(joinTree);
String xml = currWork.toXML();
String bigTableAlias = null;
long ThresholdOfSmallTblSizeSum = HiveConf.getLongVar(context.getConf(),
HiveConf.ConfVars.HIVESMALLTABLESFILESIZE);
for (int i = 0; i < numAliases; i++) {