[td-11818] fix error.

source/client/test/clientTests.cpp

@@ -48,7 +48,7 @@ int main(int argc, char** argv) {
 }
 
 TEST(testCase, driverInit_Test) { taos_init(); }
-#if 0
+
 TEST(testCase, connect_Test) {
   TAOS* pConn = taos_connect("localhost", "root", "taosdata", NULL, 0);
   if (pConn == NULL) {
@@ -551,7 +551,7 @@ TEST(testCase, generated_request_id_test) {
 //  taos_free_result(pRes);
 //  taos_close(pConn);
 //}
-#endif
+//#endif
 
 TEST(testCase, projection_query_tables) {
   TAOS* pConn = taos_connect("localhost", "root", "taosdata", NULL, 0);

source/libs/planner/src/planner.c

@@ -64,9 +64,12 @@ int32_t qCreateQueryDag(const struct SQueryNode* pNode, struct SQueryDag** pDag,
     return code;
   }
 
-  char* str = NULL;
-  queryPlanToString(logicPlan, &str);
-  printf("%s\n", str);
+  //
+  if (logicPlan->info.type != QNODE_MODIFY) {
+//    char* str = NULL;
+//    queryPlanToString(logicPlan, &str);
+//    printf("%s\n", str);
+  }
 
   code = optimizeQueryPlan(logicPlan);
   if (TSDB_CODE_SUCCESS != code) {