Fix postgres bug with blank creates

lib/dialects/mariadb/query.js

@@ -88,6 +88,7 @@ module.exports = (function() {
           .on('error', function(err) {
             errorDetected = true
             self.emit('sql', self.sql)
+            err.sql = sql
             self.emit('error', err, self.callee)
           })
           .on('end', function(info) {

lib/dialects/mysql/query.js

@@ -27,6 +27,7 @@ module.exports = (function() {
       this.emit('sql', this.sql)
 
       if (err) {
+        err.sql = sql
         this.emit('error', err, this.callee)
       } else {
         this.emit('success', this.formatResults(results))

lib/dialects/postgres/query-generator.js

@@ -256,9 +256,12 @@ module.exports = (function() {
     },
 
     insertQuery: function(tableName, attrValueHash, attributes) {
+      var query
+        , valueQuery = "INSERT INTO <%= table %> (<%= attributes %>) VALUES (<%= values %>) RETURNING *;"
+        , emptyQuery = "INSERT INTO <%= table %> DEFAULT VALUES RETURNING *;"
+
       attrValueHash = Utils.removeNullValuesFromHash(attrValueHash, this.options.omitNull)
 
-      var query     = "INSERT INTO <%= table %> (<%= attributes %>) VALUES (<%= values %>) RETURNING *;"
       // Remove serials that are null or undefined, which causes an error in PG
       Utils._.forEach(attrValueHash, function(value, key, hash) {
         if (tables[tableName]) {
@@ -284,6 +287,8 @@ module.exports = (function() {
       , values:     rowValues.join(",")
       }
 
+      query = replacements.attributes.length ? valueQuery : emptyQuery
+
       return Utils._.template(query)(replacements)
     },
 

lib/dialects/postgres/query.js

@@ -36,6 +36,7 @@ module.exports = (function() {
 
     query.on('error', function(err) {
       receivedError = true
+      err.sql = sql
       self.emit('error', err, self.callee)
     })
 

lib/dialects/sqlite/query.js

@@ -44,6 +44,7 @@ module.exports = (function() {
             self.emit('sql', self.sql)
 
             if (err) {
+              err.sql = self.sql
               onFailure.call(self, err)
             } else {
               this.columnTypes = columnTypes

test/associations/has-many.test.js

@@ -898,7 +898,7 @@ describe(Support.getTestDialectTeaser("HasMany"), function() {
 
           this.sequelize.sync().done(function(err) { 
             expect(err).not.to.be.ok
-            Worker.create().done(function (err, worker) {
+            Worker.create({}).done(function (err, worker) {
               expect(err).not.to.be.ok
               Task.bulkCreate([{}, {}]).done(function (err) {
                 expect(err).not.to.be.ok

test/dao-factory/create.test.js

@@ -595,6 +595,17 @@ describe(Support.getTestDialectTeaser("DAOFactory"), function () {
       })
     })
 
+    it('should allow blank creates (with timestamps: false)', function (done) {
+      var Worker = this.sequelize.define('Worker', {}, {timestamps: false})
+      Worker.sync().done(function(err) { 
+        Worker.create().done(function (err, worker) {
+          expect(err).not.to.be.ok
+          expect(worker).to.be.ok
+          done()
+        })
+      })
+    })
+
     describe('enums', function() {
       it('correctly restores enum values', function(done) {
         var self = this

test/postgres/query-generator.test.js

@@ -415,6 +415,10 @@ if (dialect.match(/^postgres/)) {
 
       insertQuery: [
         {
+          arguments: ['myTable', {}],
+          expectation: "INSERT INTO \"myTable\" DEFAULT VALUES RETURNING *;"
+        },
+        {
           arguments: ['myTable', {name: 'foo'}],
           expectation: "INSERT INTO \"myTable\" (\"name\") VALUES ('foo') RETURNING *;"
         }, {