diff --git a/tests/system-test/0-others/compatibility.py b/tests/system-test/0-others/compatibility.py
index 7926812dff..30513ac020 100644
--- a/tests/system-test/0-others/compatibility.py
+++ b/tests/system-test/0-others/compatibility.py
@@ -72,8 +72,9 @@ class TDTestCase:
 
         
     def buildTaosd(self,bPath):
-        print(f" build path {bPath} ")
-        os.system(f" cd {bPath}  && cmake -DBUILD_TOOLS=on .. && make -j4 && make install")
+        # os.system(f"mv {bPath}/build_bak  {bPath}/build ")
+        os.system(f" cd {bPath}  &&  make install ")
+
 
     def run(self):
         bPath=self.getBuildPath()
@@ -85,21 +86,21 @@ class TDTestCase:
         tableNumbers=100
         recordNumbers1=100
         recordNumbers2=1000
-        # tdsqlF=tdCom.newTdSql()
-        # print(tdsqlF)
-        # tdsqlF.query(f"SELECT SERVER_VERSION();")
-        # print(tdsqlF.query(f"SELECT SERVER_VERSION();"))
-        # oldServerVersion=tdsqlF.queryResult[0][0]
-        # tdLog.info(f"Base server version is {oldServerVersion}")
-        # tdsqlF.query(f"SELECT CLIENT_VERSION();")
+        tdsqlF=tdCom.newTdSql()
+        print(tdsqlF)
+        tdsqlF.query(f"SELECT SERVER_VERSION();")
+        print(tdsqlF.query(f"SELECT SERVER_VERSION();"))
+        oldServerVersion=tdsqlF.queryResult[0][0]
+        tdLog.info(f"Base server version is {oldServerVersion}")
+        tdsqlF.query(f"SELECT CLIENT_VERSION();")
         
-        # # the oldClientVersion can't be updated in the same python process,so the version is new compiled verison
-        # oldClientVersion=tdsqlF.queryResult[0][0]
-        # tdLog.info(f"Base client version is {oldClientVersion}")
-        oldServerVersion="3.0.1.0"
+        # the oldClientVersion can't be updated in the same python process,so the version is new compiled verison
+        oldClientVersion=tdsqlF.queryResult[0][0]
+        tdLog.info(f"Base client version is {oldClientVersion}")
+
         tdLog.printNoPrefix(f"==========step1:prepare and check data in old version-{oldServerVersion}")
-        tdLog.info(f"taosBenchmark -t {tableNumbers} -n {recordNumbers1} -y  ")
-        os.system(f"/usr/local/bin/taosBenchmark -t {tableNumbers} -n {recordNumbers1} -y  ")
+        tdLog.info(f" LD_LIBRARY_PATH=/usr/lib  taosBenchmark -t {tableNumbers} -n {recordNumbers1} -y  ")
+        os.system(f"LD_LIBRARY_PATH=/usr/lib taosBenchmark -t {tableNumbers} -n {recordNumbers1} -y  ")
         sleep(3)
 
         # tdsqlF.query(f"select count(*) from {stb}")
@@ -108,10 +109,10 @@ class TDTestCase:
         sleep(2)
 
         print(f"start taosd: nohup taosd -c {cPath} & ")
-        os.system(f" nohup /usr/bin/taosd -c {cPath} & " )
+        os.system(f" nohup taosd -c {cPath} & " )
         sleep(10)
         tdLog.info(" LD_LIBRARY_PATH=/usr/lib  taosBenchmark -f 0-others/compa4096.json -y  ")
-        os.system("/usr/local/bin/taosBenchmark -f 0-others/compa4096.json -y")
+        os.system("LD_LIBRARY_PATH=/usr/lib  taosBenchmark -f 0-others/compa4096.json -y")
         os.system("pkill -9 taosd")
 
 
@@ -132,14 +133,11 @@ class TDTestCase:
         tdLog.info(f"New client version is {nowClientVersion}")
 
         tdLog.printNoPrefix(f"==========step3:prepare and check data in new version-{nowServerVersion}")
-        #tdsql.query(f"select count(*) from {stb}")
-        #tdsql.checkData(0,0,tableNumbers*recordNumbers1)        
-        os.system(f"/usr/local/bin/taosBenchmark -t {tableNumbers} -n {recordNumbers2} -y  ")
+        tdsql.query(f"select count(*) from {stb}")
+        tdsql.checkData(0,0,tableNumbers*recordNumbers1)        
+        os.system(f"taosBenchmark -t {tableNumbers} -n {recordNumbers2} -y  ")
         tdsql.query(f"select count(*) from {stb}")
         tdsql.checkData(0,0,tableNumbers*recordNumbers2)
-        tdsql.query("select count(*) from db4096.stb0")
-        tdsql.checkData(0,0,50000)
-
 
         tdsql=tdCom.newTdSql()
         tdLog.printNoPrefix(f"==========step4:verify backticks in taos Sql-TD18542")