title: Cannot initialize the indexer process
body: <p>Sorry for the question duplication, but I couldn't find the answers to the question, so I am posting it again.
  I tried re indexing the magento 1.7.0.2 via admin. Since the server is shared server, I cannot run the indexer via shell script; though I tried running it through cron, but it didn't worked either.
  After running the indexer process, I got the following error logged in the the exception.log file:</p>
  
  <pre><code>2013-07-14T17:03:55+00:00 DEBUG (7): Exception message: Cannot create table without columns comments
  </code></pre>
  
  <p>Trace: #0 /home/username/public_html/demo/app/code/core/Mage/Catalog/Model/Resource/Category/Flat.php(604): Varien_Db_Adapter_Pdo_Mysql->createTable(Object(Varien_Db_Ddl_Table))</p>
  
  <pre><code>#1 /home/username/public_html/demo/app/code/core/Mage/Catalog/Model/Resource/Category/Flat.php(1418): Mage_Catalog_Model_Resource_Category_Flat-&gt;_createTable('4')
  #2 /home/username/public_html/demo/app/code/core/Mage/Catalog/Model/Resource/Category/Flat.php(1431): Mage_Catalog_Model_Resource_Category_Flat-&gt;_createTables()
  #3 /home/username/public_html/demo/app/code/core/Mage/Catalog/Model/Category/Indexer/Flat.php(246): Mage_Catalog_Model_Resource_Category_Flat-&gt;reindexAll()
  #4 /home/username/public_html/demo/app/code/core/Mage/Index/Model/Process.php(209): Mage_Catalog_Model_Category_Indexer_Flat-&gt;reindexAll()
  #5 /home/username/public_html/demo/app/code/core/Mage/Index/Model/Process.php(255): Mage_Index_Model_Process-&gt;reindexAll()
  #6 /home/username/public_html/demo/app/code/core/Mage/Index/controllers/Adminhtml/ProcessController.php(178): Mage_Index_Model_Process-&gt;reindexEverything()
  #7 /home/username/public_html/demo/app/code/core/Mage/Core/Controller/Varien/Action.php(419): Mage_Index_Adminhtml_ProcessController-&gt;massReindexAction()
  #8 /home/username/public_html/demo/app/code/core/Mage/Core/Controller/Varien/Router/Standard.php(250): Mage_Core_Controller_Varien_Action-&gt;dispatch('massReindex')
  #9 /home/username/public_html/demo/app/code/core/Mage/Core/Controller/Varien/Front.php(176): Mage_Core_Controller_Varien_Router_Standard-&gt;match(Object(Mage_Core_Controller_Request_Http))
  #10 /home/username/public_html/demo/app/code/core/Mage/Core/Model/App.php(354): Mage_Core_Controller_Varien_Front-&gt;dispatch()
  #11 /home/username/public_html/demo/app/Mage.php(683): Mage_Core_Model_App-&gt;run(Array)
  #12 /home/username/public_html/demo/index.php(87): Mage::run('', 'store')
  #13 {main}
  </code></pre>
  
  <p>I don't know what the other solutions could be. I tried deleting lock files and reindexing again
  Also tried truncating the flat tables, it didn't worked either.</p>
  
  <p>Any help is greatly appreciated.</p>