Add support to add hint to Parse.Query (parse-community#1054)

* added console.log

* added _batchCount and _batchIndex properties

* test batch index and count

* added hint

* added hint to ParseQuery

* fixed failed tests

* removed _batchIndex and _batchCount

* added documentation and support for chaining

* added documentation and tests

* bump parse-server

* fix tests

Co-authored-by: Diamond Lewis <[email protected]>

Author: stevestencil

integration/test/ParseQueryTest.js

@@ -2011,4 +2011,17 @@ describe('Parse Query', () => {
     });
     query.cancel();
   });
+
+  it('can query with hint', async () => {
+    const obj1 = new TestObject({ number: 1 });
+    const obj2 = new TestObject({ number: 2 });
+    const obj3 = new TestObject({ number: 3 });
+    await Parse.Object.saveAll([obj1, obj2, obj3]);
+
+    const query = new Parse.Query(TestObject);
+    query.hint('_id_');
+    query.explain();
+    const explain = await query.find();
+    assert.equal(explain.queryPlanner.winningPlan.inputStage.inputStage.indexName, '_id_');
+  });
 });