diff --git a/tests/system-test/2-query/cos.py b/tests/system-test/2-query/cos.py
new file mode 100644
index 0000000000..0cb9f66937
--- /dev/null
+++ b/tests/system-test/2-query/cos.py
@@ -0,0 +1,518 @@
+import taos
+import sys
+import datetime
+import inspect
+import math
+from util.log import *
+from util.sql import *
+from util.cases import *
+
+
+class TDTestCase:
+    updatecfgDict = {'debugFlag': 143 ,"cDebugFlag":143,"uDebugFlag":143 ,"rpcDebugFlag":143 , "tmrDebugFlag":143 , 
+    "jniDebugFlag":143 ,"simDebugFlag":143,"dDebugFlag":143, "dDebugFlag":143,"vDebugFlag":143,"mDebugFlag":143,"qDebugFlag":143,
+    "wDebugFlag":143,"sDebugFlag":143,"tsdbDebugFlag":143,"tqDebugFlag":143 ,"fsDebugFlag":143 ,"fnDebugFlag":143}
+    def init(self, conn, powSql):
+        tdLog.debug(f"start to excute {__file__}")
+        tdSql.init(conn.cursor())
+    
+    def prepare_datas(self):
+        tdSql.execute(
+            '''create table stb1
+            (ts timestamp, c1 int, c2 bigint, c3 smallint, c4 tinyint, c5 float, c6 double, c7 bool, c8 binary(16),c9 nchar(32), c10 timestamp)
+            tags (t1 int)
+            '''
+        )
+        
+        tdSql.execute(
+            '''
+            create table t1
+            (ts timestamp, c1 int, c2 bigint, c3 smallint, c4 tinyint, c5 float, c6 double, c7 bool, c8 binary(16),c9 nchar(32), c10 timestamp)
+            '''
+        )
+        for i in range(4):
+            tdSql.execute(f'create table ct{i+1} using stb1 tags ( {i+1} )')
+
+        for i in range(9):
+            tdSql.execute(
+                f"insert into ct1 values ( now()-{i*10}s, {1*i}, {11111*i}, {111*i}, {11*i}, {1.11*i}, {11.11*i}, {i%2}, 'binary{i}', 'nchar{i}', now()+{1*i}a )"
+            )
+            tdSql.execute(
+                f"insert into ct4 values ( now()-{i*90}d, {1*i}, {11111*i}, {111*i}, {11*i}, {1.11*i}, {11.11*i}, {i%2}, 'binary{i}', 'nchar{i}', now()+{1*i}a )"
+            )
+        tdSql.execute("insert into ct1 values (now()-45s, 0, 0, 0, 0, 0, 0, 0, 'binary0', 'nchar0', now()+8a )")
+        tdSql.execute("insert into ct1 values (now()+10s, 9, -99999, -999, -99, -9.99, -99.99, 1, 'binary9', 'nchar9', now()+9a )")
+        tdSql.execute("insert into ct1 values (now()+15s, 9, -99999, -999, -99, -9.99, NULL, 1, 'binary9', 'nchar9', now()+9a )")
+        tdSql.execute("insert into ct1 values (now()+20s, 9, -99999, -999, NULL, -9.99, -99.99, 1, 'binary9', 'nchar9', now()+9a )")
+
+        tdSql.execute("insert into ct4 values (now()-810d, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL ) ")
+        tdSql.execute("insert into ct4 values (now()-400d, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL ) ")
+        tdSql.execute("insert into ct4 values (now()+90d, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL  ) ")
+
+        tdSql.execute(
+            f'''insert into t1 values
+            ( '2020-04-21 01:01:01.000', NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL )
+            ( '2020-10-21 01:01:01.000', 1, 11111, 111, 11, 1.11, 11.11, 1, "binary1", "nchar1", now()+1a )
+            ( '2020-12-31 01:01:01.000', 2, 22222, 222, 22, 2.22, 22.22, 0, "binary2", "nchar2", now()+2a )
+            ( '2021-01-01 01:01:06.000', 3, 33333, 333, 33, 3.33, 33.33, 0, "binary3", "nchar3", now()+3a )
+            ( '2021-05-07 01:01:10.000', 4, 44444, 444, 44, 4.44, 44.44, 1, "binary4", "nchar4", now()+4a )
+            ( '2021-07-21 01:01:01.000', NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL )
+            ( '2021-09-30 01:01:16.000', 5, 55555, 555, 55, 5.55, 55.55, 0, "binary5", "nchar5", now()+5a )
+            ( '2022-02-01 01:01:20.000', 6, 66666, 666, 66, 6.66, 66.66, 1, "binary6", "nchar6", now()+6a )
+            ( '2022-10-28 01:01:26.000', 7, 00000, 000, 00, 0.00, 00.00, 1, "binary7", "nchar7", "1970-01-01 08:00:00.000" )
+            ( '2022-12-01 01:01:30.000', 8, -88888, -888, -88, -8.88, -88.88, 0, "binary8", "nchar8", "1969-01-01 01:00:00.000" )
+            ( '2022-12-31 01:01:36.000', 9, -99999999999999999, -999, -99, -9.99, -999999999999999999999.99, 1, "binary9", "nchar9", "1900-01-01 00:00:00.000" )
+            ( '2023-02-21 01:01:01.000', NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL )
+            '''
+        )
+    
+    def check_result_auto_cos(self ,origin_query , pow_query):
+
+        pow_result = tdSql.getResult(pow_query)
+        origin_result = tdSql.getResult(origin_query)
+
+        auto_result =[]
+        
+        for row in origin_result:
+            row_check = []
+            for elem in row:
+                if elem == None:
+                    elem = None
+                else:
+                    elem = math.cos(elem)
+                row_check.append(elem)
+            auto_result.append(row_check)
+
+        check_status = True
+
+        for row_index , row in enumerate(pow_result):
+            for col_index , elem in enumerate(row):
+                if auto_result[row_index][col_index] == None  and not (auto_result[row_index][col_index] == None and elem == None):
+                    check_status = False
+                elif auto_result[row_index][col_index] != None  and (auto_result[row_index][col_index] - elem > 0.00000001):
+                    check_status = False 
+                else:
+                    pass
+        if not check_status:
+            tdLog.notice("cos function value has not as expected , sql is \"%s\" "%pow_query )
+            sys.exit(1)
+        else:
+            tdLog.info("cos value check pass , it work as expected ,sql is \"%s\"   "%pow_query )
+        
+    def test_errors(self):
+        error_sql_lists = [
+            "select cos from t1",
+            # "select cos(-+--+c1 ) from t1",
+            # "select +-cos(c1) from t1",
+            # "select ++-cos(c1) from t1",
+            # "select ++--cos(c1) from t1",
+            # "select - -cos(c1)*0 from t1",
+            # "select cos(tbname+1) from t1 ",
+            "select cos(123--123)==1 from t1",
+            "select cos(c1) as 'd1' from t1",
+            "select cos(c1 ,c2) from t1",
+            "select cos(c1 ,NULL ) from t1",
+            "select cos(,) from t1;",
+            "select cos(cos(c1) ab from t1)",
+            "select cos(c1 ) as int from t1",
+            "select cos from stb1",
+            # "select cos(-+--+c1) from stb1",
+            # "select +-cos(c1) from stb1",
+            # "select ++-cos(c1) from stb1",
+            # "select ++--cos(c1) from stb1",
+            # "select - -cos(c1)*0 from stb1",
+            # "select cos(tbname+1) from stb1 ",
+            "select cos(123--123)==1 from stb1",
+            "select cos(c1) as 'd1' from stb1",
+            "select cos(c1 ,c2 ) from stb1",
+            "select cos(c1 ,NULL) from stb1",
+            "select cos(,) from stb1;",
+            "select cos(cos(c1) ab from stb1)",
+            "select cos(c1) as int from stb1"
+        ]
+        for error_sql in error_sql_lists:
+            tdSql.error(error_sql)
+    
+    def support_types(self):
+        type_error_sql_lists = [
+            "select cos(ts) from t1" , 
+            "select cos(c7) from t1",
+            "select cos(c8) from t1",
+            "select cos(c9) from t1",
+            "select cos(ts) from ct1" , 
+            "select cos(c7) from ct1",
+            "select cos(c8) from ct1",
+            "select cos(c9) from ct1",
+            "select cos(ts) from ct3" , 
+            "select cos(c7) from ct3",
+            "select cos(c8) from ct3",
+            "select cos(c9) from ct3",
+            "select cos(ts) from ct4" , 
+            "select cos(c7) from ct4",
+            "select cos(c8) from ct4",
+            "select cos(c9) from ct4",
+            "select cos(ts) from stb1" , 
+            "select cos(c7) from stb1",
+            "select cos(c8) from stb1",
+            "select cos(c9) from stb1" ,
+
+            "select cos(ts) from stbbb1" , 
+            "select cos(c7) from stbbb1",
+
+            "select cos(ts) from tbname",
+            "select cos(c9) from tbname"
+
+        ]
+        
+        for type_sql in type_error_sql_lists:
+            tdSql.error(type_sql)
+        
+        
+        type_sql_lists = [
+            "select cos(c1) from t1",
+            "select cos(c2) from t1",
+            "select cos(c3) from t1",
+            "select cos(c4) from t1",
+            "select cos(c5) from t1",
+            "select cos(c6) from t1",
+
+            "select cos(c1) from ct1",
+            "select cos(c2) from ct1",
+            "select cos(c3) from ct1",
+            "select cos(c4) from ct1",
+            "select cos(c5) from ct1",
+            "select cos(c6) from ct1",
+
+            "select cos(c1) from ct3",
+            "select cos(c2) from ct3",
+            "select cos(c3) from ct3",
+            "select cos(c4) from ct3",
+            "select cos(c5) from ct3",
+            "select cos(c6) from ct3",
+
+            "select cos(c1) from stb1",
+            "select cos(c2) from stb1",
+            "select cos(c3) from stb1",
+            "select cos(c4) from stb1",
+            "select cos(c5) from stb1",
+            "select cos(c6) from stb1",
+
+            "select cos(c6) as alisb from stb1", 
+            "select cos(c6) alisb from stb1", 
+        ]
+
+        for type_sql in type_sql_lists:
+            tdSql.query(type_sql)
+    
+    def basic_cosin_function(self):
+
+        # basic query 
+        tdSql.query("select c1 from ct3")
+        tdSql.checkRows(0)
+        tdSql.query("select c1 from t1")
+        tdSql.checkRows(12)
+        tdSql.query("select c1 from stb1")
+        tdSql.checkRows(25)
+
+        # used for empty table  , ct3 is empty
+        tdSql.query("select cos(c1) from ct3")
+        tdSql.checkRows(0)
+        tdSql.query("select cos(c2) from ct3")
+        tdSql.checkRows(0)
+        tdSql.query("select cos(c3) from ct3")
+        tdSql.checkRows(0)
+        tdSql.query("select cos(c4) from ct3")
+        tdSql.checkRows(0)
+        tdSql.query("select cos(c5) from ct3")
+        tdSql.checkRows(0)
+        tdSql.query("select cos(c6) from ct3")
+        tdSql.checkRows(0)
+
+
+        # # used for regular table
+        tdSql.query("select cos(c1) from t1")
+        tdSql.checkData(0, 0, None)
+        tdSql.checkData(1 , 0, 0.540302306)
+        tdSql.checkData(3 , 0, -0.989992497)
+        tdSql.checkData(5 , 0, None)
+
+        tdSql.query("select c1, c2, c3 , c4, c5 from t1")
+        tdSql.checkData(1, 4, 1.11000)
+        tdSql.checkData(3, 3, 33)
+        tdSql.checkData(5, 4, None)
+
+        tdSql.query("select ts,c1, c2, c3 , c4, c5 from t1")
+        tdSql.checkData(1, 5, 1.11000)
+        tdSql.checkData(3, 4, 33)
+        tdSql.checkData(5, 5, None)
+
+        self.check_result_auto_cos( "select abs(c1), abs(c2), abs(c3) , abs(c4), abs(c5) from t1", "select cos(abs(c1)), cos(abs(c2)) ,cos(abs(c3)), cos(abs(c4)), cos(abs(c5)) from t1")
+        
+        # used for sub table
+        tdSql.query("select c2 ,cos(c2) from ct1")
+        tdSql.checkData(0, 1, 0.975339851)
+        tdSql.checkData(1 , 1, -0.830564903)
+        tdSql.checkData(3 , 1, 0.602244939)
+        tdSql.checkData(4 , 1, 1.000000000)
+
+        tdSql.query("select c1, c5 ,cos(c5) from ct4")
+        tdSql.checkData(0 , 2, None)
+        tdSql.checkData(1 , 2, -0.855242438)
+        tdSql.checkData(2 , 2, 0.083882969)
+        tdSql.checkData(3 , 2, 0.929841474)
+        tdSql.checkData(5 , 2, None)
+
+        self.check_result_auto_cos( "select c1, c2, c3 , c4, c5 from ct1", "select cos(c1), cos(c2) ,cos(c3), cos(c4), cos(c5) from ct1")
+       
+        # nest query for cos functions
+        tdSql.query("select c4  , cos(c4) ,cos(cos(c4)) , cos(cos(cos(c4))) from ct1;")
+        tdSql.checkData(0 , 0 , 88)
+        tdSql.checkData(0 , 1 , 0.999373284)
+        tdSql.checkData(0 , 2 , 0.540829563)
+        tdSql.checkData(0 , 3 , 0.857281878)
+
+        tdSql.checkData(1 , 0 , 77)
+        tdSql.checkData(1 , 1 , -0.030975032)
+        tdSql.checkData(1 , 2 , 0.999520312)
+        tdSql.checkData(1 , 3 , 0.540705887)
+
+        tdSql.checkData(11 , 0 , -99)
+        tdSql.checkData(11 , 1 , 0.039820880)
+        tdSql.checkData(11 , 2 , 0.999207254)
+        tdSql.checkData(11 , 3 , 0.540969209)
+
+        # used for stable table 
+        
+        tdSql.query("select cos(c1) from stb1")
+        tdSql.checkRows(25)
+      
+
+        # used for not exists table
+        tdSql.error("select cos(c1) from stbbb1")
+        tdSql.error("select cos(c1) from tbname")
+        tdSql.error("select cos(c1) from ct5")
+
+        # mix with common col 
+        tdSql.query("select c1, cos(c1) from ct1")
+        tdSql.query("select c2, cos(c2) from ct4")
+        
+
+        # mix with common functions
+        tdSql.query("select c1, cos(c1),cos(c1), cos(cos(c1)) from ct4 ")
+        tdSql.checkData(0 , 0 ,None)
+        tdSql.checkData(0 , 1 ,None)
+        tdSql.checkData(0 , 2 ,None)
+        tdSql.checkData(0 , 3 ,None)
+        
+        tdSql.checkData(3 , 0 , 6)
+        tdSql.checkData(3 , 1 ,0.960170287)
+        tdSql.checkData(3 , 2 ,0.960170287)
+        tdSql.checkData(3 , 3 ,0.573380480)
+
+        tdSql.query("select c1, cos(c1),c5, floor(c5) from stb1 ")
+
+        # # mix with agg functions , not support
+        tdSql.error("select c1, cos(c1),c5, count(c5) from stb1 ")
+        tdSql.error("select c1, cos(c1),c5, count(c5) from ct1 ")
+        tdSql.error("select cos(c1), count(c5) from stb1 ")
+        tdSql.error("select cos(c1), count(c5) from ct1 ")
+        tdSql.error("select c1, count(c5) from ct1 ")
+        tdSql.error("select c1, count(c5) from stb1 ")
+
+        # agg functions mix with agg functions
+
+        tdSql.query("select max(c5), count(c5) from stb1")
+        tdSql.query("select max(c5), count(c5) from ct1")
+
+        
+        # # bug fix for compute 
+        tdSql.query("select c1, cos(c1) -0 ,cos(c1-4)-0 from ct4 ")
+        tdSql.checkData(0, 0, None)
+        tdSql.checkData(0, 1, None)
+        tdSql.checkData(0, 2, None)
+        tdSql.checkData(1, 0, 8)
+        tdSql.checkData(1, 1, -0.145500034)
+        tdSql.checkData(1, 2, -0.653643621)
+
+        tdSql.query(" select c1, cos(c1) -0 ,cos(c1-0.1)-0.1 from ct4")
+        tdSql.checkData(0, 0, None)
+        tdSql.checkData(0, 1, None)
+        tdSql.checkData(0, 2, None)
+        tdSql.checkData(1, 0, 8)
+        tdSql.checkData(1, 1, -0.145500034)
+        tdSql.checkData(1, 2, -0.146002126)
+
+        tdSql.query("select c1, cos(c1), c2, cos(c2), c3, cos(c3) from ct1")
+
+    def test_big_number(self):
+
+        tdSql.query("select c1, cos(100000000) from ct1")  # bigint to double data overflow
+        tdSql.checkData(4, 1, math.cos(100000000))
+
+
+        tdSql.query("select c1, cos(10000000000000) from ct1")  # bigint to double data overflow
+        tdSql.checkData(4, 1, math.cos(10000000000000))
+
+        tdSql.query("select c1, cos(10000000000000000000000000) from ct1")  # bigint to double data overflow
+        tdSql.query("select c1, cos(10000000000000000000000000.0) from ct1") # 10000000000000000000000000.0 is a double value
+        tdSql.checkData(1, 1, math.cos(10000000000000000000000000.0))
+
+        tdSql.query("select c1, cos(10000000000000000000000000000000000) from ct1")  # bigint to double data overflow
+        tdSql.query("select c1, cos(10000000000000000000000000000000000.0) from ct1") # 10000000000000000000000000.0 is a double value
+        tdSql.checkData(4, 1, math.cos(10000000000000000000000000000000000.0))
+
+        tdSql.query("select c1, cos(10000000000000000000000000000000000000000) from ct1")  # bigint to double data overflow
+        tdSql.query("select c1, cos(10000000000000000000000000000000000000000.0) from ct1") # 10000000000000000000000000.0 is a double value
+
+        tdSql.checkData(4, 1, math.cos(10000000000000000000000000000000000000000.0))
+
+        tdSql.query("select c1, cos(10000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000) from ct1")  # bigint to double data overflow
+
+    def abs_func_filter(self):
+        tdSql.execute("use db")
+        tdSql.query("select c1, abs(c1) -0 ,ceil(c1-0.1)-0 ,floor(c1+0.1)-0.1 ,ceil(cos(c1)-0.5) from ct4 where c1>5 ")
+        tdSql.checkRows(3)
+        tdSql.checkData(0,0,8)
+        tdSql.checkData(0,1,8.000000000)
+        tdSql.checkData(0,2,8.000000000)
+        tdSql.checkData(0,3,7.900000000)
+        tdSql.checkData(0,4,0.000000000)
+
+        tdSql.query("select c1, abs(c1) -0 ,ceil(c1-0.1)-0 ,floor(c1+0.1)-0.1 ,ceil(cos(c1)-0.5) from ct4 where c1=5 ")
+        tdSql.checkRows(1)
+        tdSql.checkData(0,0,5)
+        tdSql.checkData(0,1,5.000000000)
+        tdSql.checkData(0,2,5.000000000)
+        tdSql.checkData(0,3,4.900000000)
+        tdSql.checkData(0,4,0.000000000)
+
+        tdSql.query("select c1,c2 , abs(c1) -0 ,ceil(c1-0.1)-0 ,floor(c1+0.1)-0.1 ,ceil(cos(c1)-0.5) from ct4 where c1>cos(c1) limit 1 ")
+        tdSql.checkRows(1)
+        tdSql.checkData(0,0,8)
+        tdSql.checkData(0,1,88888)
+        tdSql.checkData(0,2,8.000000000)
+        tdSql.checkData(0,3,8.000000000)
+        tdSql.checkData(0,4,7.900000000)
+        tdSql.checkData(0,5,0.000000000)
+        
+    def pow_Arithmetic(self):
+        pass
+    
+    def check_boundary_values(self):
+
+        PI=3.1415926
+
+        tdSql.execute("drop database if exists bound_test")
+        tdSql.execute("create database if not exists bound_test")
+        time.sleep(3)
+        tdSql.execute("use bound_test")
+        tdSql.execute(
+            "create table stb_bound (ts timestamp, c1 int, c2 bigint, c3 smallint, c4 tinyint, c5 float, c6 double, c7 bool, c8 binary(32),c9 nchar(32), c10 timestamp) tags (t1 int);"
+        )
+        tdSql.execute(f'create table sub1_bound using stb_bound tags ( 1 )')
+        tdSql.execute(
+                f"insert into sub1_bound values ( now()-1s, 2147483647, 9223372036854775807, 32767, 127, 3.40E+38, 1.7e+308, True, 'binary_tb1', 'nchar_tb1', now() )"
+            )
+        tdSql.execute(
+                f"insert into sub1_bound values ( now()-1s, -2147483647, -9223372036854775807, -32767, -127, -3.40E+38, -1.7e+308, True, 'binary_tb1', 'nchar_tb1', now() )"
+            )
+        tdSql.execute(
+                f"insert into sub1_bound values ( now(), 2147483646, 9223372036854775806, 32766, 126, 3.40E+38, 1.7e+308, True, 'binary_tb1', 'nchar_tb1', now() )"
+            )
+        tdSql.execute(
+                f"insert into sub1_bound values ( now(), -2147483646, -9223372036854775806, -32766, -126, -3.40E+38, -1.7e+308, True, 'binary_tb1', 'nchar_tb1', now() )"
+            )
+        tdSql.error(
+                f"insert into sub1_bound values ( now()+1s, 2147483648, 9223372036854775808, 32768, 128, 3.40E+38, 1.7e+308, True, 'binary_tb1', 'nchar_tb1', now() )"
+            )
+        self.check_result_auto_cos( "select abs(c1), abs(c2), abs(c3) , abs(c4), abs(c5) from sub1_bound ", "select cos(abs(c1)), cos(abs(c2)) ,cos(abs(c3)), cos(abs(c4)), cos(abs(c5)) from sub1_bound")
+       
+        self.check_result_auto_cos( "select c1, c2, c3 , c3, c2 ,c1 from sub1_bound ", "select cos(c1), cos(c2) ,cos(c3), cos(c3), cos(c2) ,cos(c1) from sub1_bound")
+
+        self.check_result_auto_cos("select abs(abs(abs(abs(abs(abs(abs(abs(abs(c1)))))))))  nest_col_func from sub1_bound" , "select cos(abs(c1)) from sub1_bound" )
+        
+        # check basic elem for table per row
+        tdSql.query("select cos(abs(c1)) ,cos(abs(c2)) , cos(abs(c3)) , cos(abs(c4)), cos(abs(c5)), cos(abs(c6)) from sub1_bound ")
+        tdSql.checkData(0,0,math.cos(2147483647))
+        tdSql.checkData(0,1,math.cos(9223372036854775807))
+        tdSql.checkData(0,2,math.cos(32767))
+        tdSql.checkData(0,3,math.cos(127))
+        tdSql.checkData(0,4,math.cos(339999995214436424907732413799364296704.00000))
+        tdSql.checkData(1,0,math.cos(2147483647))
+        tdSql.checkData(1,1,math.cos(9223372036854775807))
+        tdSql.checkData(1,2,math.cos(32767))
+        tdSql.checkData(1,3,math.cos(127))
+        tdSql.checkData(1,4,math.cos(339999995214436424907732413799364296704.00000))
+        tdSql.checkData(3,0,math.cos(2147483646))
+        tdSql.checkData(3,1,math.cos(9223372036854775806))
+        tdSql.checkData(3,2,math.cos(32766))
+        tdSql.checkData(3,3,math.cos(126))
+        tdSql.checkData(3,4,math.cos(339999995214436424907732413799364296704.00000))
+
+        # check  + - * / in functions
+        tdSql.query("select cos(abs(c1+1)) ,cos(abs(c2)) , cos(abs(c3*1)) , cos(abs(c4/2)), cos(abs(c5))/2, cos(abs(c6)) from sub1_bound ")
+        tdSql.checkData(0,0,math.cos(2147483648.000000000))
+        tdSql.checkData(0,1,math.cos(9223372036854775807))
+        tdSql.checkData(0,2,math.cos(32767.000000000))
+        tdSql.checkData(0,3,math.cos(63.500000000))
+
+        tdSql.execute("create stable st (ts timestamp,  num1 float, num2 double) tags (t1 int);")
+        tdSql.execute(f'create table tb1 using st tags (1)')
+        tdSql.execute(f'create table tb2 using st tags (2)')
+        tdSql.execute(f'create table tb3 using st tags (3)')
+        tdSql.execute('insert into tb1 values (now()-40s, {}, {})'.format(PI/2 ,PI/2 ))
+        tdSql.execute('insert into tb1 values (now()-30s, {}, {})'.format(PI ,PI ))
+        tdSql.execute('insert into tb1 values (now()-20s, {}, {})'.format(PI*1.5 ,PI*1.5))
+        tdSql.execute('insert into tb1 values (now()-10s, {}, {})'.format(PI*2 ,PI*2))
+        tdSql.execute('insert into tb1 values (now(), {}, {})'.format(PI*2.5 ,PI*2.5))
+
+        tdSql.execute('insert into tb2 values (now()-40s, {}, {})'.format(PI/2 ,PI/2 ))
+        tdSql.execute('insert into tb2 values (now()-30s, {}, {})'.format(PI ,PI ))
+        tdSql.execute('insert into tb2 values (now()-20s, {}, {})'.format(PI*1.5 ,PI*1.5))
+        tdSql.execute('insert into tb2 values (now()-10s, {}, {})'.format(PI*2 ,PI*2))
+        tdSql.execute('insert into tb2 values (now(), {}, {})'.format(PI*2.5 ,PI*2.5))
+
+        for i in range(100):
+            tdSql.execute('insert into tb3 values (now()+{}s, {}, {})'.format(i,PI*(5+i)/2 ,PI*(5+i)/2))
+
+        self.check_result_auto_cos("select num1,num2 from tb3;" , "select cos(num1),cos(num2) from tb3")
+    
+    def run(self):  # sourcery skip: extract-duplicate-method, remove-redundant-fstring
+        tdSql.prepare()
+
+        tdLog.printNoPrefix("==========step1:create table ==============")
+        
+        self.prepare_datas()
+
+        tdLog.printNoPrefix("==========step2:test errors ==============")    
+
+        self.test_errors()
+        
+        tdLog.printNoPrefix("==========step3:support types ============") 
+
+        self.support_types()
+
+        tdLog.printNoPrefix("==========step4: cos basic query ============") 
+
+        self.basic_cosin_function()
+
+        tdLog.printNoPrefix("==========step5: big number cos query ============") 
+
+        self.test_big_number()
+
+
+        tdLog.printNoPrefix("==========step6: cos boundary query ============") 
+
+        self.check_boundary_values()
+
+        tdLog.printNoPrefix("==========step7: cos filter query ============") 
+
+        self.abs_func_filter()
+
+
+    def stop(self):
+        tdSql.close()
+        tdLog.success(f"{__file__} successfully executed")
+
+tdCases.addLinux(__file__, TDTestCase())
+tdCases.addWindows(__file__, TDTestCase())
diff --git a/tests/system-test/2-query/sin.py b/tests/system-test/2-query/sin.py
index 138027d26c..62d42a991e 100644
--- a/tests/system-test/2-query/sin.py
+++ b/tests/system-test/2-query/sin.py
@@ -473,7 +473,7 @@ class TDTestCase:
         tdSql.execute('insert into tb2 values (now(), {}, {})'.format(PI*2.5 ,PI*2.5))
 
         for i in range(100):
-            tdSql.execute('insert into tb3 values (now()+{}s, {}, {})'.format(i,PI*(2.5+i) ,PI*(2.5+i)))
+            tdSql.execute('insert into tb3 values (now()+{}s, {}, {})'.format(i,PI*(5+i)/2 ,PI*(5+i)/2))
 
         self.check_result_auto_sin("select num1,num2 from tb3;" , "select sin(num1),sin(num2) from tb3")
     
diff --git a/tests/system-test/fulltest.sh b/tests/system-test/fulltest.sh
index dec31b137c..bdef427fdb 100755
--- a/tests/system-test/fulltest.sh
+++ b/tests/system-test/fulltest.sh
@@ -24,4 +24,5 @@ python3 ./test.py -f 2-query/floor.py
 python3 ./test.py -f 2-query/round.py
 python3 ./test.py -f 2-query/log.py
 python3 ./test.py -f 2-query/pow.py
-python3 ./test.py -f 2-query/sin.py
\ No newline at end of file
+python3 ./test.py -f 2-query/sin.py
+python3 ./test.py -f 2-query/cos.py
\ No newline at end of file