Execute queries parallel in findAndCount - Closes #6695 (#6696)

changelog.md

 # Future
 # Future
-- [FIXED] `restore` now uses `field` from `deletedAt` 
+- [FIXED] Execute queries parallel in findAndCount [#6695](https://github.com/sequelize/sequelize/issues/6695)
+- [FIXED] `restore` now uses `field` from `deletedAt`
 - [FIXED] MSSQL bulkInsertQuery when options and attributes are not passed
 - [FIXED] MSSQL bulkInsertQuery when options and attributes are not passed
 - [FIXED] `DATEONLY` now returns `YYYY-MM-DD` date string [#4858] (https://github.com/sequelize/sequelize/issues/4858)
 - [FIXED] `DATEONLY` now returns `YYYY-MM-DD` date string [#4858] (https://github.com/sequelize/sequelize/issues/4858)
 - [FIXED] Issues with `createFunction` and `dropFunction` (PostgresSQL)
 - [FIXED] Issues with `createFunction` and `dropFunction` (PostgresSQL)

lib/model.js

@@ -1757,14 +1757,18 @@ class Model {
     if (countOptions.attributes) {
     if (countOptions.attributes) {
       countOptions.attributes = undefined;
       countOptions.attributes = undefined;
     }
     }
-    return this.count(countOptions).then(count => {
+
+    const countQuery = this.count(countOptions);
+    const findQuery = this.findAll(options);
+
+    return countQuery.then(count => {
       if (count === 0) {
       if (count === 0) {
         return {
         return {
           count: count || 0,
           count: count || 0,
           rows: []
           rows: []
         };
         };
       }
       }
-      return this.findAll(options).then(results => ({
+      return findQuery.then(results => ({
         count: count || 0,
         count: count || 0,
         rows: results
         rows: results
       }));
       }));