Table.new can take a hash for the second param

lib/arel/table.rb

@@ -6,9 +6,10 @@ module Arel
     attr_reader :name, :engine
 
     def initialize name, engine = Table.engine
-      @name        = name
-      @engine      = engine
-      @columns     = nil
+      @name    = name
+      @engine  = engine
+      @engine  = engine[:engine] if Hash === engine
+      @columns = nil
     end
 
     def tm

spec/arel/table_spec.rb

@@ -6,6 +6,18 @@ module Arel
       @relation = Table.new(:users)
     end
 
+    describe 'new' do
+      it 'should accept an engine' do
+        rel = Table.new :users, 'foo'
+        rel.engine.should == 'foo'
+      end
+
+      it 'should accept a hash' do
+        rel = Table.new :users, :engine => 'foo'
+        rel.engine.should == 'foo'
+      end
+    end
+
     describe 'where' do
       it "returns a tree manager" do
         manager = @relation.where @relation[:id].eq 1