Merge pull request #14910 from taosdata/cases/TS-841

test: add test cases for max_row/min_row function

tests/parallel_test/cases.task

@@ -814,6 +814,8 @@
 3,,pytest,python3 test.py -f table/columnNameValidation.py
 3,,pytest,python3 test.py -f table/tagNameCaseSensitive.py  
 3,,pytest,python3 test.py -f table/tbNameCaseSensitive.py 
+3,,pytest,python3 test.py -f functions/function_max_row.py  
+3,,pytest,python3 test.py -f functions/function_min_row.py  
 3,,develop-test,python3 ./test.py -f 2-query/ts_hidden_column.py 
 3,,develop-test,python3 ./test.py -f 2-query/ts_shortcut.py
 3,,develop-test,python3 ./test.py -f 2-query/nchar_funcs.py

tests/pytest/functions/function_max_row.py

+###################################################################
+#           Copyright (c) 2016 by TAOS Technologies, Inc.
+#                     All rights reserved.
+#
+#  This file is proprietary and confidential to TAOS Technologies.
+#  No part of this file may be reproduced, stored, transmitted,
+#  disclosed or used in any form or by any means other than as
+#  expressly provided by the written permission from Jianhui Tao
+#
+###################################################################
+
+# -*- coding: utf-8 -*-
+
+import sys
+import taos
+from util.log import *
+from util.cases import *
+from util.sql import *
+import numpy as np
+
+
+class TDTestCase:
+    def init(self, conn, logSql):
+        tdLog.debug("start to execute %s" % __file__)
+        tdSql.init(conn.cursor())
+
+        self.rowNum = 10
+        self.tables = 10
+        self.ts = 1537146000000
+        
+    def run(self):
+        tdSql.prepare()
+
+        intData = []
+        floatData = []
+
+        tdSql.execute("create table stb (ts timestamp, c1 int, c2 double, c3 float) tags(t1 int)")
+        for i in range(self.tables):
+            tdSql.execute("create table tb%d using stb tags(%d)" % (i, i))
+            sql = "insert into tb%d values" % i
+            for j in range(self.rowNum):
+                sql += "(%d, %d, %f, %f)" % (self.ts + j * 3000, j, j + 0.1, j + 0.1)
+                intData.append(j)
+                floatData.append(j + 0.1)
+            tdSql.execute(sql)
+        
+        tdSql.error("select max_row(ts) from stb")
+        tdSql.error("select max_row(t1) from stb")
+        
+        tdSql.query("select max_row(c1) from stb")
+        tdSql.checkData(0, 0, np.max(intData))
+
+        tdSql.query("select max_row(c1), * from stb")
+        tdSql.checkData(0, 0, np.max(intData))
+        tdSql.checkData(0, 2, np.max(intData))
+        tdSql.checkData(0, 3, np.max(floatData))
+        tdSql.checkData(0, 4, np.max(floatData))
+
+        tdSql.query("select max_row(c1), * from stb group by tbname")
+        for i in range(self.tables):
+            tdSql.checkData(i, 0, np.max(intData))
+            tdSql.checkData(i, 2, np.max(intData))
+            tdSql.checkData(i, 3, np.max(floatData))
+            tdSql.checkData(i, 4, np.max(floatData))
+        
+        tdSql.query("select max_row(c1), * from stb interval(6s)")
+        tdSql.checkRows(5)
+
+        tdSql.query("select max_row(c1), * from tb1 interval(6s)")
+        tdSql.checkRows(5)
+
+        tdSql.query("select max_row(c1), * from stb interval(6s) group by tbname")
+        tdSql.checkRows(50)
+
+        tdSql.query("select max_row(c1), * from (select min_row(c1) c1, * from stb group by tbname)")
+        tdSql.checkData(0, 0, np.min(intData))
+        tdSql.checkRows(1)
+
+    def stop(self):
+        tdSql.close()
+        tdLog.success("%s successfully executed" % __file__)
+
+tdCases.addWindows(__file__, TDTestCase())
+tdCases.addLinux(__file__, TDTestCase())
\ No newline at end of file

tests/pytest/functions/function_min_row.py

+###################################################################
+#           Copyright (c) 2016 by TAOS Technologies, Inc.
+#                     All rights reserved.
+#
+#  This file is proprietary and confidential to TAOS Technologies.
+#  No part of this file may be reproduced, stored, transmitted,
+#  disclosed or used in any form or by any means other than as
+#  expressly provided by the written permission from Jianhui Tao
+#
+###################################################################
+
+# -*- coding: utf-8 -*-
+
+import sys
+import taos
+from util.log import *
+from util.cases import *
+from util.sql import *
+import numpy as np
+
+
+class TDTestCase:
+    def init(self, conn, logSql):
+        tdLog.debug("start to execute %s" % __file__)
+        tdSql.init(conn.cursor())
+
+        self.rowNum = 10
+        self.tables = 10
+        self.ts = 1537146000000
+        
+    def run(self):
+        tdSql.prepare()
+
+        intData = []
+        floatData = []
+
+        tdSql.execute("create table stb (ts timestamp, c1 int, c2 double, c3 float) tags(t1 int)")
+        for i in range(self.tables):
+            tdSql.execute("create table tb%d using stb tags(%d)" % (i, i))
+            sql = "insert into tb%d values" % i
+            for j in range(self.rowNum):
+                sql += "(%d, %d, %f, %f)" % (self.ts + j * 3000, j, j + 0.1, j + 0.1)
+                intData.append(j)
+                floatData.append(j + 0.1)
+            tdSql.execute(sql)
+        
+        tdSql.error("select min_row(ts) from stb")
+        tdSql.error("select min_row(t1) from stb")
+        
+        tdSql.query("select min_row(c1) from stb")
+        tdSql.checkData(0, 0, np.min(intData))
+
+        tdSql.query("select min_row(c1), * from stb")
+        tdSql.checkData(0, 0, np.min(intData))
+        tdSql.checkData(0, 2, np.min(intData))
+        tdSql.checkData(0, 3, np.min(floatData))
+        tdSql.checkData(0, 4, np.min(floatData))
+
+        tdSql.query("select min_row(c1), * from stb group by tbname")
+        for i in range(self.tables):
+            tdSql.checkData(i, 0, np.min(intData))
+            tdSql.checkData(i, 2, np.min(intData))
+            tdSql.checkData(i, 3, np.min(floatData))
+            tdSql.checkData(i, 4, np.min(floatData))
+        
+        tdSql.query("select min_row(c1), * from stb interval(6s)")
+        tdSql.checkRows(5)
+
+        tdSql.query("select min_row(c1), * from tb1 interval(6s)")
+        tdSql.checkRows(5)
+
+        tdSql.query("select min_row(c1), * from stb interval(6s) group by tbname")
+        tdSql.checkRows(50)
+
+        tdSql.query("select min_row(c1), * from (select max_row(c1) c1, * from stb group by tbname)")
+        tdSql.checkData(0, 0, np.max(intData))
+        tdSql.checkRows(1)
+
+    def stop(self):
+        tdSql.close()
+        tdLog.success("%s successfully executed" % __file__)
+
+tdCases.addWindows(__file__, TDTestCase())
+tdCases.addLinux(__file__, TDTestCase())
\ No newline at end of file