Code pruning, fix bug with infinite row async fetching when using insert

src/connector/nodejs/nodetaos/cursor.js

@@ -268,7 +268,7 @@ TDengineCursor.prototype.execute_a = function execute_a (operation, options, cal
     if (resCode >= 0) {
       let fieldCount = cr._chandle.numFields(res2);
       if (fieldCount == 0) {
-        cr._chandle.freeResult(res2); //result will no longer be needed
+
       }
       else {
         return res2;
@@ -339,15 +339,14 @@ TDengineCursor.prototype.fetchall_a = function fetchall_a(result, options, callb
   // object which holds accumulated data in the data key.
   let asyncCallbackWrapper = function asyncCallbackWrapper(param2, result2, numOfRows2, rowData) {
     param2 = ref.readObject(param2); //return the object back from the pointer
-    // Keep fetching until now rows left.
-    if (numOfRows2 > 0) {
+    if (numOfRows2 > 0 && rowData.length != 0) {
+      // Keep fetching until now rows left.
       let buf2 = ref.alloc('Object');
       param2.data.push(rowData);
       ref.writeObject(buf2, 0, param2);
       cr._chandle.fetch_rows_a(result2, asyncCallbackWrapper, buf2);
     }
     else {
-
       let finalData = param2.data;
       let fields = cr._chandle.fetchFields_a(result2);
       let data = [];
@@ -365,6 +364,7 @@ TDengineCursor.prototype.fetchall_a = function fetchall_a(result, options, callb
       }
       cr._chandle.freeResult(result2); // free result, avoid seg faults and mem leaks!
       callback(param2, result2, numOfRows2, {data:data,fields:fields});
+
     }
   }
   ref.writeObject(buf, 0, param);

src/connector/nodejs/nodetaos/taosquery.js

@@ -69,11 +69,9 @@ TaosQuery.prototype.execute_a = async function execute_a(options = {}) {
     frej = reject;
   });
   let asyncCallbackFetchall = async function(param, res, numOfRows, blocks) {
-    //param is expected to be the fetchPromise variable;
-
-    //keep fetching until completion, possibly an issue though
     if (numOfRows > 0) {
-      frej("cursor.fetchall_a didn't fetch all data properly");
+      // Likely a query like insert
+      fres();
     }
     else {
       fres(new TaosResult(blocks.data, blocks.fields));