[TD-4838]<fix>: taosdump binary length bug. (#6580)

src/kit/taosdump/taosdump.c

@@ -1858,13 +1858,13 @@ int taosDumpTableData(FILE *fp, char *tbname, struct arguments *arguments, TAOS*
           converStringToReadable((char *)row[col], length[col], tbuf, COMMAND_SIZE);
           //pstr = stpcpy(pstr, tbuf);
           //*(pstr++) = '\'';
-          pstr += sprintf(pstr + curr_sqlstr_len, "\'%s\'", tbuf);
+          curr_sqlstr_len += sprintf(pstr + curr_sqlstr_len, "\'%s\'", tbuf);
           break;
         }
         case TSDB_DATA_TYPE_NCHAR: {
           char tbuf[COMMAND_SIZE] = {0};
           convertNCharToReadable((char *)row[col], length[col], tbuf, COMMAND_SIZE);
-          pstr += sprintf(pstr + curr_sqlstr_len, "\'%s\'", tbuf);
+          curr_sqlstr_len += sprintf(pstr + curr_sqlstr_len, "\'%s\'", tbuf);
           break;
         }
         case TSDB_DATA_TYPE_TIMESTAMP:
@@ -1897,7 +1897,8 @@ int taosDumpTableData(FILE *fp, char *tbname, struct arguments *arguments, TAOS*
 
     total_sqlstr_len += curr_sqlstr_len;
 
-    if ((count >= arguments->data_batch) || (sql_buf_len - total_sqlstr_len < TSDB_MAX_BYTES_PER_ROW)) {
+    if ((count >= arguments->data_batch)
+            || (sql_buf_len - total_sqlstr_len < TSDB_MAX_BYTES_PER_ROW)) {
       fprintf(fp, ";\n");
       count = 0;
     } //else {
@@ -1905,6 +1906,8 @@ int taosDumpTableData(FILE *fp, char *tbname, struct arguments *arguments, TAOS*
     //}
   }
 
+  printf("total_sqlstr_len: %d\n", total_sqlstr_len);
+
   fprintf(fp, "\n");
   atomic_add_fetch_64(&totalDumpOutRows, totalRows);