diff --git a/src/client/src/tscParseLineProtocol.c b/src/client/src/tscParseLineProtocol.c
index c0cc2ea3ae92866e29807f9edaaa136df6a9a678..61f9cd9e765dbd722cfc84d1807efaab94bb3428 100644
--- a/src/client/src/tscParseLineProtocol.c
+++ b/src/client/src/tscParseLineProtocol.c
@@ -225,7 +225,7 @@ int32_t addTaosFieldToHashAndArray(TAOS_SML_KV* smlKv, SHashObj* hash, SArray* a
 int32_t generateSchemaAction(SSchema* pointColField, SHashObj* dbAttrHash, bool isTag, char sTableName[],
                                        SSchemaAction* action, bool* actionNeeded) {
   SSchema** ppDbAttr = taosHashGet(dbAttrHash, pointColField->name, strlen(pointColField->name));
-  if (*ppDbAttr) {
+  if (ppDbAttr) {
     SSchema* dbAttr = *ppDbAttr;
     if (pointColField->type != dbAttr->type) {
       //todo error
diff --git a/tests/examples/c/apitest.c b/tests/examples/c/apitest.c
index 656d5fd21745903765f53fcb59d97a2148adc0e4..5cb3f5762ad8884c94093ff3b39093f6fd7d52a1 100644
--- a/tests/examples/c/apitest.c
+++ b/tests/examples/c/apitest.c
@@ -958,13 +958,15 @@ int32_t verify_schema_less(TAOS* taos) {
   taos_free_result(result);
   usleep(100000);
   taos_select_db(taos, "test");
+  result = taos_query(taos, "create stable ste(ts timestamp, f int) tags(t1 bigint)");
 
   char* lines[] = {
       "st,t1=3i,t2=4,t3=\"t3\" c1=3i,c3=L\"passit\",c2=false,c4=4 1626006833639000000",
       "st,t1=4i,t2=5,t3=\"t4\" c1=3i,c3=L\"passitagain\",c2=true,c4=5 1626006833640000000",
-      "st,t1=4i,t2=5,t3=\"t4\" c1=3i,c3=L\"passitagain\",c2=true,c4=5 1626006833642000000"
+      "st,t1=4i,t2=5,t3=\"t4\" c1=3i,c3=L\"passitagain\",c2=true,c4=5 1626006833642000000",
+      "ste,t2=5,t3=L\"ste\" c1=true,c2=4 1626056811823316532"
   };
-  int code = taos_insert_by_lines(taos, lines , 3);
+  int code = taos_insert_by_lines(taos, lines , 4);
   return code;
 }