@Override
public void computeDeliveredProperties(ILogicalOperator op, IOptimizationContext context) {
IDataSource<?> ds = idx.getDataSource();
IDataSourcePropertiesProvider dspp = ds.getPropertiesProvider();
AbstractScanOperator as = (AbstractScanOperator) op;
deliveredProperties = dspp.computePropertiesVector(as.getVariables());
}
@Override
public PhysicalRequirements getRequiredPropertiesForChildren(
ILogicalOperator op, IPhysicalPropertiesVector reqdByParent) {
List<LogicalVariable> scanVariables = new ArrayList<>();
scanVariables.addAll(primaryKeys);
scanVariables.add(new LogicalVariable(-1));
IPhysicalPropertiesVector physicalProps =
dataSourceIndex
.getDataSource()
.getPropertiesProvider()
.computePropertiesVector(scanVariables);
List<ILocalStructuralProperty> localProperties = new ArrayList<>();
List<OrderColumn> orderColumns = new ArrayList<OrderColumn>();
// Data needs to be sorted based on the [token, number of token, PK]
// OR [token, PK] if the index is not partitioned
for (LogicalVariable skVar : secondaryKeys) {
orderColumns.add(new OrderColumn(skVar, OrderKind.ASC));
}
for (LogicalVariable pkVar : primaryKeys) {
orderColumns.add(new OrderColumn(pkVar, OrderKind.ASC));
}
localProperties.add(new LocalOrderProperty(orderColumns));
StructuralPropertiesVector spv =
new StructuralPropertiesVector(physicalProps.getPartitioningProperty(), localProperties);
return new PhysicalRequirements(
new IPhysicalPropertiesVector[] {spv},
IPartitioningRequirementsCoordinator.NO_COORDINATION);
}