refine sql sample code

Author: xjtushilei

samples/sql.js

@@ -4,17 +4,17 @@ const params = {
     query: "select * from test_table",
 }
 
-client.sqlQuery(params, function (err, data) {
+client.sqlQuery(params, function (err, resp) {
     if (err) {
         console.log('sqlQuery error:', err.toString());
     } else {
-        console.log('sqlQuery success:', data);
-        console.log(data.sqlRows.rowCount.toFloat64());
-        console.log(data.sqlRows.columnCount);
-        console.log(data.sqlRows.sqlTableMeta)
-        for (let i = 0; i < data.sqlRows.rowCount.toFloat64(); i++) {
-            for (let j = 0; j < data.sqlRows.columnCount; j++) {
-                let data = data.sqlRows.get(i, j);
+        console.log('sqlQuery success:', resp);
+        console.log(resp.sqlRows.rowCount.toFloat64());
+        console.log(resp.sqlRows.columnCount);
+        console.log(resp.sqlRows.sqlTableMeta)
+        for (let i = 0; i < resp.sqlRows.rowCount.toFloat64(); i++) {
+            for (let j = 0; j < resp.sqlRows.columnCount; j++) {
+                let data = resp.sqlRows.get(i, j);
                 // 处理binary类型
                 if (resp.sqlRows.sqlTableMeta.schemas[j].typeName === "BINARY") {
                     let int8Array = data.valueArray();