DEFAULT support is not the same as DEFAULT VALUES support

lib/dialects/abstract/dialect.js

@@ -4,7 +4,8 @@ var AbstractDialect = function() {
 
 AbstractDialect.prototype.supports = {
 	'RETURNING': false,
-	'DEFAULT': true
+	'DEFAULT': true,
+	'DEFAULT VALUES': false
 }
 
 module.exports = AbstractDialect
\ No newline at end of file

lib/dialects/abstract/query-generator.js

@@ -113,7 +113,7 @@ module.exports = (function() {
         , key
         , value
 
-      if (this._dialect.supports['DEFAULT']) {
+      if (this._dialect.supports['DEFAULT VALUES']) {
         emptyQuery += " DEFAULT VALUES"
       }
 

lib/dialects/postgres.js

@@ -6,7 +6,8 @@ var PostgresDialect = function(sequelize) {
 }
 
 PostgresDialect.prototype.supports = _.extend(Abstract.prototype.supports, {
-	'RETURNING': true
+	'RETURNING': true,
+	'DEFAULT VALUES': true
 })
 
 module.exports = PostgresDialect
\ No newline at end of file