fix(Postgres): Support for GeoPoint equality query (#3875)

* Postgres doesn't support this query type yet

* removing conflict

* near test

* remove trailing space

spec/ParseGeoPoint.spec.js

@@ -53,7 +53,6 @@ describe('Parse.GeoPoint testing', () => {
     obj.set('name', 'Zhoul')
     obj.save(null, {
       success: (obj) => {
-        console.log(obj);
         Parse.Cloud.httpRequest({
           url: 'http://localhost:8378/1/classes/TestObject/' + obj.id,
           headers: {
@@ -316,6 +315,21 @@ describe('Parse.GeoPoint testing', () => {
     });
   });
 
+  it('returns nearest location', (done) => {
+    makeSomeGeoPoints(function() {
+      var sfo = new Parse.GeoPoint(37.6189722, -122.3748889);
+      var query = new Parse.Query(TestObject);
+      query.near('location', sfo);
+      query.find({
+        success: function(results) {
+          equal(results[0].get('name'), 'San Francisco');
+          equal(results[1].get('name'), 'Sacramento');
+          done();
+        }
+      });
+    });
+  });
+
   it('works with geobox queries', (done) => {
     var inSF = new Parse.GeoPoint(37.75, -122.4);
     var southwestOfSF = new Parse.GeoPoint(37.708813, -122.526398);
@@ -376,6 +390,23 @@ describe('Parse.GeoPoint testing', () => {
     });
   });
 
+  it('equalTo geopoint', (done) => {
+    var point = new Parse.GeoPoint(44.0, -11.0);
+    var obj = new TestObject();
+    obj.set('location', point);
+    obj.save().then(() => {
+      const query = new Parse.Query(TestObject);
+      query.equalTo('location', point);
+      return query.find();
+    }).then((results) => {
+      equal(results.length, 1);
+      const loc = results[0].get('location');
+      equal(loc.latitude, point.latitude);
+      equal(loc.longitude, point.longitude);
+      done();
+    });
+  });
+
   it('supports withinPolygon', (done) => {
     const point1 = new Parse.GeoPoint(1.5, 1.5);
     const point2 = new Parse.GeoPoint(2, 8);

src/Adapters/Storage/Postgres/PostgresStorageAdapter.js

@@ -402,6 +402,12 @@ const buildWhereClause = ({ schema, query, index }) => {
       index += 2;
     }
 
+    if (fieldValue.__type === 'GeoPoint') {
+      patterns.push('$' + index + ':name ~= POINT($' + (index + 1) + ', $' + (index + 2) + ')');
+      values.push(fieldName, fieldValue.longitude, fieldValue.latitude);
+      index += 3;
+    }
+
     Object.keys(ParseToPosgresComparator).forEach(cmp => {
       if (fieldValue[cmp]) {
         const pgComparator = ParseToPosgresComparator[cmp];