@Override
public void computeInterestingPropertiesForInputs(CostEstimator estimator) {
// get what we inherit and what is preserved by our user code
final InterestingProperties props = getInterestingProperties().filterByCodeAnnotations(this, 0);
// add all properties relevant to this node
for (OperatorDescriptorSingle dps : getPossibleProperties()) {
for (RequestedGlobalProperties gp : dps.getPossibleGlobalProperties()) {
if (gp.getPartitioning().isPartitionedOnKey()) {
// make sure that among the same partitioning types, we do not push anything down that has
// fewer key fields
for (RequestedGlobalProperties contained : props.getGlobalProperties()) {
if (contained.getPartitioning() == gp.getPartitioning()
&& gp.getPartitionedFields().isValidSubset(contained.getPartitionedFields())) {
props.getGlobalProperties().remove(contained);
break;
}
}
}
props.addGlobalProperties(gp);
}
for (RequestedLocalProperties lp : dps.getPossibleLocalProperties()) {
props.addLocalProperties(lp);
}
}
this.inConn.setInterestingProperties(props);
for (DagConnection conn : getBroadcastConnections()) {
conn.setInterestingProperties(new InterestingProperties());
}
}
