title: How to set product name attribute as unique in magento
body: <p>I'm using a search box that shows a list of product names in a drop-down list.</p>
  
  <p>When the user selects one of the product name and clicks search, the page will be redirected to the product associated to that name.</p>
  
  <p>The problem here is: if the product contains more than one similar name, we will fail to redirect the user to the correct product. That's whey Iwould like to add an unique product name.</p>
  
  <p>I wasn't able to set it as <code>unique</code> in admin's <code>Manage attribute</code> tab.</p>
  
  <p>I tried to change it via database by changing its value from 0 to 1 in <code>eav_attribute</code> table, but it does not make any sense.</p>
  
  <p>So, how can I add <code>unique</code> option to the <code>product name</code>?</p>