LinkedHashSet<Partition> true_parts = new LinkedHashSet<Partition>();
LinkedHashSet<Partition> unkn_parts = new LinkedHashSet<Partition>();
try {
StructObjectInspector rowObjectInspector = (StructObjectInspector)this.tab.getDeserializer().getObjectInspector();
Object[] rowWithPart = new Object[2];
InspectableObject inspectableObject = new InspectableObject();
ExprNodeEvaluator evaluator = null;
if (this.prunerExpr != null)
evaluator = ExprNodeEvaluatorFactory.get(this.prunerExpr);
for(Partition part: Hive.get().getPartitions(this.tab)) {
// Set all the variables here
LinkedHashMap<String, String> partSpec = part.getSpec();
// Create the row object
ArrayList<String> partNames = new ArrayList<String>();
ArrayList<String> partValues = new ArrayList<String>();
ArrayList<ObjectInspector> partObjectInspectors = new ArrayList<ObjectInspector>();
for(Map.Entry<String,String>entry : partSpec.entrySet()) {
partNames.add(entry.getKey());
partValues.add(entry.getValue());
partObjectInspectors.add(ObjectInspectorFactory.getStandardPrimitiveObjectInspector(String.class));
}
StructObjectInspector partObjectInspector = ObjectInspectorFactory.getStandardStructObjectInspector(partNames, partObjectInspectors);
rowWithPart[1] = partValues;
ArrayList<StructObjectInspector> ois = new ArrayList<StructObjectInspector>(2);
ois.add(rowObjectInspector);
ois.add(partObjectInspector);
StructObjectInspector rowWithPartObjectInspector = ObjectInspectorFactory.getUnionStructObjectInspector(ois);
// evaluate the expression tree
if (evaluator != null) {
evaluator.evaluate(rowWithPart, rowWithPartObjectInspector, inspectableObject);
LOG.trace("prune result for partition " + partSpec + ": " + inspectableObject.o);