lib/arel/engines/sql/relations/table.rb in arel-0.2.pre vs lib/arel/engines/sql/relations/table.rb in arel-0.2.0

@@ -9,11 +9,11 @@
       @name = name.to_s
 
       if options.is_a?(Hash)
         @options = options
         @engine = options[:engine] || Table.engine
-        @table_alias = options[:as].to_s if options[:as].present?
+        @table_alias = options[:as].to_s if options[:as].present? && options[:as].to_s != @name
       else
         @engine = options # Table.new('foo', engine)
       end
     end
 
@@ -50,11 +50,12 @@
     def reset
       @attributes = @columns = nil
     end
 
     def ==(other)
-      Table      === other and
-      name       ==  other.name
+      Table       === other and
+      name        ==  other.name and
+      table_alias ==  other.table_alias
     end
   end
 end
 
 def Table(name, engine = Arel::Table.engine)