fs = testDir.getFileSystem(conf);
util.startCatalogCluster();
catalog = util.getMiniCatalogCluster().getCatalog();
sm = StorageManagerFactory.getStorageManager(conf, testDir);
analyzer = new SQLAnalyzer();
planner = new LogicalPlanner(catalog);
optimizer = new LogicalOptimizer();
schema = new Schema();
schema.addColumn("empId", Type.INT4);