Плоская таблица продукта не будет переиндексирована - Слишком большой размер строки

Когда я пытаюсь переиндексировать плоские данные продукта, я получаю Произошла ошибка проблема с процессом переиндексации. Восстановление базы данных не помогло. Файл Exception.log показывает эту ошибку

2011-08-29T11:54:05+00:00 DEBUG (7): Exception message: SQLSTATE[42000]: Syntax error or access violation: 1118 Row size too large. The maximum row size for the used table type, not counting BLOBs, is 65535. You have to change some columns to TEXT or BLOBs
Trace: #0 /home/sites/www.domain.com/lib/Zend/Db/Statement.php(300): Zend_Db_Statement_Pdo->_execute(Array)
#1 /home/sites/www.domain.com/lib/Zend/Db/Adapter/Abstract.php(479): Zend_Db_Statement->execute(Array)
#2 /home/sites/www.domain.com/lib/Zend/Db/Adapter/Pdo/Abstract.php(238): Zend_Db_Adapter_Abstract->query('ALTER TABLE `ca...', Array)
#3 /home/sites/www.domain.com/lib/Varien/Db/Adapter/Pdo/Mysql.php(337): Zend_Db_Adapter_Pdo_Abstract->query('ALTER TABLE `ca...', Array)
#4 /home/sites/www.domain.com/app/code/core/Mage/Catalog/Model/Resource/Eav/Mysql4/Product/Flat/Indexer.php(652): Varien_Db_Adapter_Pdo_Mysql->query('ALTER TABLE `ca...')
#5 /home/sites/www.domain.com/app/code/core/Mage/Catalog/Model/Resource/Eav/Mysql4/Product/Flat/Indexer.php(122): Mage_Catalog_Model_Resource_Eav_Mysql4_Product_Flat_Indexer->prepareFlatTable('1')
#6 /home/sites/www.domain.com/app/code/core/Mage/Catalog/Model/Resource/Eav/Mysql4/Product/Flat/Indexer.php(115): Mage_Catalog_Model_Resource_Eav_Mysql4_Product_Flat_Indexer->rebuild('1')
#7 /home/sites/www.domain.com/app/code/core/Mage/Catalog/Model/Product/Flat/Indexer.php(64): Mage_Catalog_Model_Resource_Eav_Mysql4_Product_Flat_Indexer->rebuild(NULL)
#8 /home/sites/www.domain.com/app/code/core/Mage/Catalog/Model/Product/Indexer/Flat.php(301): Mage_Catalog_Model_Product_Flat_Indexer->rebuild()
#9 /home/sites/www.domain.com/app/code/core/Mage/Index/Model/Process.php(139): Mage_Catalog_Model_Product_Indexer_Flat->reindexAll()
#10 /home/sites/www.domain.com/app/code/core/Mage/Index/Model/Process.php(167): Mage_Index_Model_Process->reindexAll()
#11 /home/sites/www.domain.com/app/code/core/Mage/Index/controllers/Adminhtml/ProcessController.php(124): Mage_Index_Model_Process->reindexEverything()
#12 /home/sites/www.domain.com/app/code/core/Mage/Core/Controller/Varien/Action.php(420): Mage_Index_Adminhtml_ProcessController->reindexProcessAction()
#13 /home/sites/www.domain.com/app/code/core/Mage/Core/Controller/Varien/Router/Standard.php(253): Mage_Core_Controller_Varien_Action->dispatch('reindexProcess')
#14 /home/sites/www.domain.com/app/code/core/Mage/Core/Controller/Varien/Front.php(176): Mage_Core_Controller_Varien_Router_Standard->match(Object(Mage_Core_Controller_Request_Http))
#15 /home/sites/www.domain.com/app/code/core/Mage/Core/Model/App.php(340): Mage_Core_Controller_Varien_Front->dispatch()
#16 /home/sites/www.domain.com/app/Mage.php(627): Mage_Core_Model_App->run(Array)
#17 /home/sites/www.domain.com/index.php(80): Mage::run('', 'store')
#18 {main}

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