fix: date casting in documents should use timestamptz (fixes #563)

* explicitly using is not comparison

* fix for timestamp casting in docs

lib/where.js

@@ -196,7 +196,7 @@ exports.docPredicate = function (result, condition, value, conditions) {
   } else if(_.isDate(value)) {
     result.params.push(value);
     result.predicates.push(
-      util.format("(body ->> '%s')::timestamp %s $%d",
+      util.format("(body ->> '%s')::timestamptz %s $%d",
         condition.field,
         condition.operator,
         result.params.length + result.offset)

test/db/schemata/default.sql

@@ -113,7 +113,7 @@ values (1, 'Power Age'),
 
 insert into myschema.docs(body)
 values('{"title":"A Document","price":22,"description":"lorem ipsum etc","is_good":true,"created_at":"2015-03-04T09:43:41.643Z"}'),
-('{"title":"Another Document","price":18,"description":"Macaroni and Cheese","is_good":true,"created_at":"2015-03-04T09:43:41.643Z"}'),
+('{"title":"Another Document","price":18,"description":"Macaroni and Cheese","is_good":true,"created_at":"2015-03-04T06:43:41.643-03:00"}'),
 ('{"title":"Starsky and Hutch","price":6,"description":"Two buddies fighting crime","is_good":false,"created_at":"1977-03-04T09:43:41.643Z","studios": [{"name" : "Warner"}, {"name" : "Universal"}]}');
 
 create or replace function all_products()

test/document_query_spec.js

@@ -154,12 +154,20 @@ describe('Document queries', function () {
     });
 
     it('works properly with dates', function (done) {
-      db.docs.findDoc({"created_at <" : new Date(1980, 1,1)}, function(err,docs){
+      db.docs.findDoc({"created_at <" : new Date(1980, 1, 1)}, function(err,docs){
         assert.ifError(err);
         assert.equal(docs.length, 1);
         done();
       });
     });
+
+    it('works properly with timestamp including time zone ', function (done) {
+      db.docs.findDoc({"created_at >" : new Date("2015-03-04T09:00:00.000Z")}, function(err,docs){
+        assert.ifError(err);
+        assert.equal(docs.length, 2);
+        done();
+      });
+    });
   });
 
   describe('Querying with options', function () {

test/where_spec.js

@@ -475,7 +475,7 @@ describe('WHERE clause generation', function () {
       var condition = {field: 'field', operator: '<>'};
       var result = where.docPredicate({params: [], predicates: [], offset: 0}, condition, date, {'field <>': date});
       assert.equal(result.predicates.length, 1);
-      assert.equal(result.predicates[0], '(body ->> \'field\')::timestamp <> $1');
+      assert.equal(result.predicates[0], '(body ->> \'field\')::timestamptz <> $1');
       assert.equal(result.params.length, 1);
       assert.equal(result.params[0], date);
     });