TDengine/source/libs/planner/test/planOptimizeTest.cpp

/*
 * Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
 *
 * This program is free software: you can use, redistribute, and/or modify
 * it under the terms of the GNU Affero General Public License, version 3
 * or later ("AGPL"), as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */

#include "planTestUtil.h"
#include "planner.h"

using namespace std;

class PlanOptimizeTest : public PlannerTestBase {};

TEST_F(PlanOptimizeTest, optimizeScanData) {
  useDb("root", "test");

  run("SELECT COUNT(*) FROM t1");

  run("SELECT COUNT(c1) FROM t1");

  run("SELECT COUNT(CAST(c1 AS BIGINT)) FROM t1");

  run("SELECT PERCENTILE(c1, 40), COUNT(*) FROM t1");
}

TEST_F(PlanOptimizeTest, ConditionPushDown) {
  useDb("root", "test");

  run("SELECT ts, c1 FROM st1 WHERE tag1 > 4");
}

TEST_F(PlanOptimizeTest, orderByPrimaryKey) {
  useDb("root", "test");

  run("SELECT * FROM t1 ORDER BY ts");
  run("SELECT * FROM t1 ORDER BY ts DESC");
  run("SELECT c1 FROM t1 ORDER BY ts");
  run("SELECT c1 FROM t1 ORDER BY ts DESC");

  run("SELECT COUNT(*) FROM t1 INTERVAL(10S) ORDER BY _WSTARTTS DESC");
}