boolean[] innerFlags = loj.getInnerFlags();
String alias = loj.getAlias();
int parallel = loj.getRequestedParallelisam();
for (int i=0;i<inputs.size();i++) {
Operator op = inputs.get(i);
PhysicalOperator physOp = logToPhyMap.get(op);
inp.add(physOp);
List<LogicalExpressionPlan> plans = (List<LogicalExpressionPlan>) loj.getJoinPlan(i);
List<PhysicalPlan> exprPlans = translateExpressionPlans(loj, plans);
ppLists.add(exprPlans);
joinPlans.put(physOp, exprPlans);
// Key could potentially be a tuple. So, we visit all exprPlans to get types of members of tuples.
List<Byte> tupleKeyMemberTypes = new ArrayList<Byte>();
for(PhysicalPlan exprPlan : exprPlans)
tupleKeyMemberTypes.add(exprPlan.getLeaves().get(0).getResultType());
keyTypes.add(tupleKeyMemberTypes);
}
if (loj.getJoinType() == LOJoin.JOINTYPE.SKEWED) {
POSkewedJoin skj;
try {
skj = new POSkewedJoin(new OperatorKey(scope,nodeGen.getNextNodeId(scope)),
parallel,inp, innerFlags);
skj.setAlias(alias);
skj.setJoinPlans(joinPlans);
}
catch (Exception e) {
int errCode = 2015;
String msg = "Skewed Join creation failed";
throw new LogicalToPhysicalTranslatorException(msg, errCode, PigException.BUG, e);
}
skj.setResultType(DataType.TUPLE);
for (int i=0; i < inputs.size(); i++) {
Operator op = inputs.get(i);
if (!innerFlags[i]) {
try {
LogicalSchema s = ((LogicalRelationalOperator)op).getSchema();
// if the schema cannot be determined
if (s == null) {