lineageTracer.removeFlattenMap(output);
lineageTracer.addFlattenMap(tOut, children);
}
lineageTracer.insert(tOut);
if (lastAdded != null) {
if(((ExampleTuple)lastAdded).isSynthetic()) tOut.makeSynthetic();
lineageTracer.union(lastAdded, tOut); // update lineage (assumes one-to-many relationship between tuples added to pipeline and output!!)
//lineageTracer.union(tOut, lastAdded);
}
}
/*if (lineageTracer != null) {