@Test
public final void testRightOuter_MergeJoin3() throws IOException, PlanningException {
Expr expr = analyzer.parse(QUERIES[3]);
LogicalNode plan = planner.createPlan(defaultContext, expr).getRootBlock().getRoot();
JoinNode joinNode = PlannerUtil.findTopNode(plan, NodeType.JOIN);
Enforcer enforcer = new Enforcer();
enforcer.enforceJoinAlgorithm(joinNode.getPID(), JoinAlgorithm.MERGE_JOIN);
FileFragment[] emp3Frags =
FileTablespace.splitNG(
conf, EMP3_NAME, emp3.getMeta(), new Path(emp3.getUri()), Integer.MAX_VALUE);
FileFragment[] dep4Frags =
FileTablespace.splitNG(
conf, DEP4_NAME, dep4.getMeta(), new Path(dep4.getUri()), Integer.MAX_VALUE);
FileFragment[] merged = TUtil.concat(emp3Frags, dep4Frags);
Path workDir =
CommonTestingUtil.getTestDir(
TajoTestingCluster.DEFAULT_TEST_DIRECTORY + "/testRightOuter_MergeJoin3");
TaskAttemptContext ctx =
new TaskAttemptContext(
new QueryContext(conf), LocalTajoTestingUtility.newTaskAttemptId(), merged, workDir);
ctx.setEnforcer(enforcer);
PhysicalPlanner phyPlanner = new PhysicalPlannerImpl(conf);
PhysicalExec exec = phyPlanner.createPlan(ctx, plan);
ProjectionExec proj = (ProjectionExec) exec;
assertTrue(proj.getChild() instanceof RightOuterMergeJoinExec);
int count = 0;
exec.init();
while (exec.next() != null) {
// TODO check contents
count = count + 1;
}
assertNull(exec.next());
exec.close();
assertEquals(13, count);
}
@Test
public final void testNext() throws IOException, PlanningException {
FileFragment[] frags =
StorageManager.splitNG(
conf, "employee", employee.getMeta(), employee.getPath(), Integer.MAX_VALUE);
Path workDir = new Path(testDir, TestExternalSortExec.class.getName());
TaskAttemptContext ctx =
new TaskAttemptContext(
conf,
LocalTajoTestingUtility.newQueryUnitAttemptId(),
new FileFragment[] {frags[0]},
workDir);
ctx.setEnforcer(new Enforcer());
Expr expr = analyzer.parse(QUERIES[0]);
LogicalPlan plan = planner.createPlan(expr);
LogicalNode rootNode = plan.getRootBlock().getRoot();
PhysicalPlanner phyPlanner = new PhysicalPlannerImpl(conf, sm);
PhysicalExec exec = phyPlanner.createPlan(ctx, rootNode);
ProjectionExec proj = (ProjectionExec) exec;
// TODO - should be planed with user's optimization hint
if (!(proj.getChild() instanceof ExternalSortExec)) {
UnaryPhysicalExec sortExec = proj.getChild();
SeqScanExec scan = sortExec.getChild();
ExternalSortExec extSort =
new ExternalSortExec(ctx, sm, ((MemSortExec) sortExec).getPlan(), scan);
proj.setChild(extSort);
}
Tuple tuple;
Tuple preVal = null;
Tuple curVal;
int cnt = 0;
exec.init();
long start = System.currentTimeMillis();
TupleComparator comparator =
new TupleComparator(
proj.getSchema(),
new SortSpec[] {
new SortSpec(new Column("managerId", Type.INT4)),
new SortSpec(new Column("empId", Type.INT4))
});
while ((tuple = exec.next()) != null) {
curVal = tuple;
if (preVal != null) {
assertTrue(
"prev: " + preVal + ", but cur: " + curVal, comparator.compare(preVal, curVal) <= 0);
}
preVal = curVal;
cnt++;
}
long end = System.currentTimeMillis();
assertEquals(numTuple, cnt);
// for rescan test
preVal = null;
exec.rescan();
cnt = 0;
while ((tuple = exec.next()) != null) {
curVal = tuple;
if (preVal != null) {
assertTrue(
"prev: " + preVal + ", but cur: " + curVal, comparator.compare(preVal, curVal) <= 0);
}
preVal = curVal;
cnt++;
}
assertEquals(numTuple, cnt);
exec.close();
System.out.println("Sort Time: " + (end - start) + " msc");
}