Task<?> rootTask = driver.getPlan().getRootTasks().get(0);
inputs.addAll(driver.getPlan().getInputs());
outputs.addAll(driver.getPlan().getOutputs());
IndexMetadataChangeWork indexMetaChange = new IndexMetadataChangeWork(partSpec,
indexTableName, dbName);
IndexMetadataChangeTask indexMetaChangeTsk =
(IndexMetadataChangeTask) TaskFactory.get(indexMetaChange, builderConf);
indexMetaChangeTsk.setWork(indexMetaChange);
rootTask.addDependentTask(indexMetaChangeTsk);