change

tests/pytest/functions/function_stddev_td2555.py

@@ -26,6 +26,12 @@ class TDTestCase:
 
         self.rowNum = 100
         self.ts = 1537146000000
+        self.clist1 = []
+        self.clist2 = []
+        self.clist3 = []
+        self.clist4 = []
+        self.clist5 = []
+        self.clist6 = []
     
     def getData(self):
         for i in range(tdSql.queryRows):
@@ -35,9 +41,6 @@ class TDTestCase:
     def run(self):
         tdSql.prepare()
 
-        intData = []        
-        floatData = []
-
         tdSql.execute('''create table test(ts timestamp, col1 tinyint, col2 smallint, col3 int, col4 bigint, col5 float, col6 double, 
                     col7 bool, col8 binary(20), col9 nchar(20)) tags(id int,gbid binary(20),loc nchar(20))''')
         tdSql.execute("create table test1 using test tags(1,'beijing','北京')")
@@ -46,9 +49,7 @@ class TDTestCase:
         for j in range(3):
             for i in range(self.rowNum):
                 tdSql.execute("insert into test%d values(now-%dh, %d, %d, %d, %d, %f, %f, %d, 'taosdata%d', '涛思数据%d')" 
-                            % (j,i, i + 1, i + 1, i + 1, i + 1, i + 0.1, i + 0.1, i % 2, i + 1, i + 1))
-                intData.append(i + 1)            
-                floatData.append(i + 0.1)                        
+                            % (j,i, i + 1, i + 1, i + 1, i + 1, i + 0.1, i + 0.1, i % 2, i + 1, i + 1))                      
 
         # stddev verifacation 
         tdSql.error("select stddev(ts) from test")
@@ -56,24 +57,6 @@ class TDTestCase:
         tdSql.error("select stddev(col8) from test")
         tdSql.error("select stddev(col9) from test")
 
-        tdSql.query("select stddev(col1) from test")
-        tdSql.checkData(0, 0, np.std(intData))
-
-        tdSql.query("select stddev(col2) from test")
-        tdSql.checkData(0, 0, np.std(intData))
-
-        tdSql.query("select stddev(col3) from test")
-        tdSql.checkData(0, 0, np.std(intData))
-
-        tdSql.query("select stddev(col4) from test")
-        tdSql.checkData(0, 0, np.std(intData))
-
-        tdSql.query("select stddev(col5) from test")
-        tdSql.checkData(0, 0, np.std(floatData))
-
-        tdSql.query("select stddev(col6) from test")
-        tdSql.checkData(0, 0, np.std(floatData))
-
         con_list = [' id = 1 and ts >=now - 1d and ts <now',
                     ' gbid = ''beijing'' and ts >=now - 1d and ts <now',
                     ' id = 2 and ts >=now - 1d and ts <now group by tbname',
@@ -87,10 +70,7 @@ class TDTestCase:
             for i in range(6):
                 exec('tdSql.query("select stddev(col{}) from test {}")'.format(i+1,condition))
                 exec('tdSql.checkData(0, 0, np.std(self.clist{}))'.format(i+1))
-
-        
-        
-
+                exec('self.clist{}.clear()'.format(i+1))
             
     def stop(self):
         tdSql.close()