get indexes on startup

Author: montymxb

spec/schemas.spec.js

@@ -2297,4 +2297,24 @@ describe('schemas', () => {
       });
     })
   });
+
+  it_exclude_dbs(['postgres'])('get indexes on startup', (done) => {
+    const obj = new Parse.Object('TestObject');
+    obj.save().then(() => {
+      return reconfigureServer({
+        appId: 'test',
+        restAPIKey: 'test',
+        publicServerURL: 'http://localhost:8378/1',
+      });
+    }).then(() => {
+      request.get({
+        url: 'http://localhost:8378/1/schemas/TestObject',
+        headers: masterKeyHeaders,
+        json: true,
+      }, (error, response, body) => {
+        expect(body.indexes._id_).toBeDefined();
+        done();
+      });
+    });
+  });
 });

src/Adapters/Storage/Mongo/MongoStorageAdapter.js

@@ -545,6 +545,25 @@ export class MongoStorageAdapter {
     return this._adaptiveCollection(className)
       .then(collection => collection._mongoCollection.dropIndexes());
   }
+
+  updateSchemaWithIndexes() {
+    return this.getAllClasses()
+      .then((classes) => {
+        const promises = classes.map((schema) => {
+          return this.getIndexes(schema.className).then((indexes) => {
+            indexes = indexes.reduce((obj, index) => {
+              obj[index.name] = index.key;
+              return obj;
+            }, {});
+            return this._schemaCollection()
+              .then(schemaCollection => schemaCollection.updateSchema(schema.className, {
+                $set: { _metadata: { indexes: indexes } }
+              }));
+          });
+        });
+        return Promise.all(promises);
+      });
+  }
 }
 
 export default MongoStorageAdapter;

src/Adapters/Storage/Postgres/PostgresStorageAdapter.js

@@ -1466,6 +1466,10 @@ export class PostgresStorageAdapter {
     const qs = 'SELECT * FROM pg_indexes WHERE tablename = ${className}';
     return this._client.any(qs, {className});
   }
+
+  updateSchemaWithIndexes() {
+    return Promise.resolve();
+  }
 }
 
 function convertPolygonToSQL(polygon) {

src/Controllers/DatabaseController.js

@@ -1005,9 +1005,11 @@ DatabaseController.prototype.performInitialization = function() {
       throw error;
     });
 
+  const indexPromise = this.adapter.updateSchemaWithIndexes();
+
   // Create tables for volatile classes
   const adapterInit = this.adapter.performInitialization({ VolatileClassesSchemas: SchemaController.VolatileClassesSchemas });
-  return Promise.all([usernameUniqueness, emailUniqueness, roleUniqueness, adapterInit]);
+  return Promise.all([usernameUniqueness, emailUniqueness, roleUniqueness, adapterInit, indexPromise]);
 }
 
 function joinTableName(className, key) {