Advancements with postgres (#2510)

* Start DB runner from tests

* Connect GridstoreAdapter only when needed

* removes unused package

* better test errors reporting

* Adds support for __op.Delete

* Better test error reporting

* Makes sure all tests can run without crashing

* Use xdescribe to skip test suite

* Removes unused dependencies

* Let volatiles classes be created with PG on start

* Do not fail if class dont exist

* adds index.spec.js to the pg suite

* Use a new config each test to prevent side effects

* Enable EmailVerificationToken specs with pg

* Makes sure failure output is not cut

* Reduces number of ignored tests in ParseObject.spec

* Inspect reconfiguration errors

* Mark GlobalConfig is incompatible with PG

- Problem is with nested updates (param.prop = value)

* PG: Nested JSON queries and updates

- Adds support for nested json and . operator queries
- Adds debug support for PG adapter
- Adds loglevel support in helper

* Enable working specs in ParseUser

* Sets default logLevel in tests to undefined

* Adds File type support, retores purchaseValidation specs

* Adds support for updating jsonb objects

- Restores PushController tests

* Proper implementation of deleteByQuery and ORs

- Adds ParseInstallation spec to the test suite

* xit only failing tests

* Nit on ParseAPI spec

* add sorting operator

* properly bound order keys

* reverts describe_only_db behavior

* Enables passing tests

* Adds basic support for relations, upsertOneObject aliased to createObject

* progress on queries options

* Fix ACL update related problems

* Creates relation tables on class creation

* Adds Relation tests

* remove flaky tests

* use promises instead of CB

* disable flaky test

* nits

* Fixes on schema spec

- Next thing is to implemenet geopoint and files correctly

* fix failues

* Basic GeoPoint support

* Adds support for $nearSphere/$maxDistance geopoint queries

* enable passing tests

* drop tables afterEach for PG, clean up relation tables too

* Better initialization/dropTables

src/Controllers/SchemaController.js

@@ -76,7 +76,7 @@ const defaultColumns = Object.freeze({
     "pushTime":     {type:'String'},
     "source":       {type:'String'}, // rest or webui
     "query":        {type:'String'}, // the stringified JSON query
-    "payload":      {type:'Object'}, // the JSON payload,
+    "payload":      {type:'String'}, // the stringified JSON payload,
     "title":        {type:'String'},
     "expiry":       {type:'Number'},
     "status":       {type:'String'},
@@ -256,7 +256,15 @@ const injectDefaultSchema = ({className, fields, classLevelPermissions}) => ({
     ...fields,
   },
   classLevelPermissions,
-})
+});
+
+const VolatileClassesSchemas = volatileClasses.map((className) => {
+  return convertSchemaToAdapterSchema(injectDefaultSchema({
+    className,
+    fields: {},
+    classLevelPermissions: {}
+  }));
+});
 
 const dbTypeMatchesObjectType = (dbType, objectType) => {
   if (dbType.type !== objectType.type) return false;
@@ -900,4 +908,5 @@ export {
   systemClasses,
   defaultColumns,
   convertSchemaToAdapterSchema,
+  VolatileClassesSchemas,
 };