Add Indexes to Schema API (#4240)

* Add Indexes to Schema API

* error handling

* ci errors

* postgres support

* full text compound indexes

* pg clean up

* get indexes on startup

* test compound index on startup

* add default _id to index, full Text index on startup

* lint

* fix test

spec/Schema.spec.js

@@ -274,7 +274,7 @@ describe('SchemaController', () => {
             fooSixteen: {type: 'String'},
             fooEighteen: {type: 'String'},
             fooNineteen: {type: 'String'},
-          }, levelPermissions, config.database))
+          }, levelPermissions, {}, config.database))
           .then(actualSchema => {
             const expectedSchema = {
               className: 'NewClass',
@@ -304,6 +304,9 @@ describe('SchemaController', () => {
                 fooNineteen: {type: 'String'},
               },
               classLevelPermissions: { ...levelPermissions },
+              indexes: {
+                _id_: { _id: 1 }
+              }
             };
 
             expect(dd(actualSchema, expectedSchema)).toEqual(undefined);