84 lines
		
	
	
		
			2.7 KiB
		
	
	
	
		
			C++
		
	
	
	
			
		
		
	
	
			84 lines
		
	
	
		
			2.7 KiB
		
	
	
	
		
			C++
		
	
	
	
/*
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 * Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
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 *
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 * This program is free software: you can use, redistribute, and/or modify
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 * it under the terms of the GNU Affero General Public License, version 3
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 * or later ("AGPL"), as published by the Free Software Foundation.
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 *
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 * This program is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.
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 *
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 * You should have received a copy of the GNU Affero General Public License
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 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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 */
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#include "planTestUtil.h"
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#include "planner.h"
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using namespace std;
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class PlanSetOpTest : public PlannerTestBase {};
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TEST_F(PlanSetOpTest, unionAll) {
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  useDb("root", "test");
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  // sql 1: single UNION ALL operator
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  run("SELECT c1, c2 FROM t1 WHERE c1 > 10 UNION ALL SELECT c1, c2 FROM t1 WHERE c1 > 20");
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  // sql 2: multi UNION ALL operator
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  run("SELECT c1, c2 FROM t1 WHERE c1 > 10 "
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      "UNION ALL SELECT c1, c2 FROM t1 WHERE c1 > 20 "
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      "UNION ALL SELECT c1, c2 FROM t1 WHERE c1 > 30");
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}
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TEST_F(PlanSetOpTest, unionAllSubquery) {
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  useDb("root", "test");
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  run("SELECT * FROM (SELECT c1, c2 FROM t1 UNION ALL SELECT c1, c2 FROM t1)");
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}
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TEST_F(PlanSetOpTest, unionAllWithSubquery) {
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  useDb("root", "test");
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  // child table
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  run("SELECT ts FROM (SELECT ts FROM st1s1) UNION ALL SELECT ts FROM (SELECT ts FROM st1s2)");
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  // super table
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  run("SELECT ts FROM (SELECT ts FROM st1) UNION ALL SELECT ts FROM (SELECT ts FROM st1)");
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}
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TEST_F(PlanSetOpTest, union) {
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  useDb("root", "test");
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  // single UNION operator
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  run("SELECT c1, c2 FROM t1 WHERE c1 > 10 UNION SELECT c1, c2 FROM t1 WHERE c1 > 20");
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  // multi UNION operator
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  run("SELECT c1, c2 FROM t1 WHERE c1 > 10 "
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      "UNION SELECT c1, c2 FROM t1 WHERE c1 > 20 "
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      "UNION SELECT c1, c2 FROM t1 WHERE c1 > 30");
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}
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TEST_F(PlanSetOpTest, unionContainJoin) {
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  useDb("root", "test");
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  run("SELECT t1.c1 FROM st1s1 t1 join st1s2 t2 on t1.ts = t2.ts "
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      "WHERE t1.c1 IS NOT NULL GROUP BY t1.c1 HAVING t1.c1 IS NOT NULL "
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      "UNION "
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      "SELECT t1.c1 FROM st1s1 t1 join st1s2 t2 on t1.ts = t2.ts "
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      "WHERE t1.c1 IS NOT NULL GROUP BY t1.c1 HAVING t1.c1 IS NOT NULL");
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}
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TEST_F(PlanSetOpTest, unionSubquery) {
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  useDb("root", "test");
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  run("SELECT * FROM (SELECT c1, c2 FROM t1 UNION SELECT c1, c2 FROM t1)");
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}
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TEST_F(PlanSetOpTest, bug001) {
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  useDb("root", "test");
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  run("SELECT c2 FROM t1 WHERE c1 IS NOT NULL GROUP BY c2 "
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      "UNION "
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      "SELECT 'abcdefghijklmnopqrstuvwxyz' FROM t1 "
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      "WHERE 'abcdefghijklmnopqrstuvwxyz' IS NOT NULL GROUP BY 'abcdefghijklmnopqrstuvwxyz'");
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}
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