}
@Override
protected void visit(LOMapLookup op) throws VisitorException {
String scope = (op.getOperatorKey()).scope;
ExpressionOperator physOp = new POMapLookUp(new OperatorKey(scope,
nodeGen.getNextNodeId(scope)), op.getRequestedParallelism(), op
.getLookUpKey());
physOp.setResultType(op.getType());
physOp.setAlias(op.getAlias());
currentPlan.add(physOp);
logToPhyMap.put(op, physOp);
ExpressionOperator from = (ExpressionOperator) logToPhyMap.get(op
.getMap());
try {
currentPlan.connect(from, physOp);
} catch (PlanException e) {
int errCode = 2015;