PDOException Object ( [message:protected] => SQLSTATE[42000]: Syntax error or access violation: 1068 Multiple primary key defined [string:Exception:private] => [code:protected] => 42000 [file:protected] => /home/mobilslf/public_html/lib/Varien/Db/Adapter/Pdo/Mysql.php [line:protected] => 277 [trace:Exception:private] => Array ( [0] => Array ( [file] => /home/mobilslf/public_html/lib/Varien/Db/Adapter/Pdo/Mysql.php [line] => 277 [function] => query [class] => PDO [type] => -> [args] => Array ( [0] => ALTER TABLE `core_cache_tag` ADD PRIMARY KEY (`tag`,`cache_id`) ) ) [1] => Array ( [file] => /home/mobilslf/public_html/lib/Varien/Db/Adapter/Pdo/Mysql.php [line] => 971 [function] => raw_query [class] => Varien_Db_Adapter_Pdo_Mysql [type] => -> [args] => Array ( [0] => ALTER TABLE `core_cache_tag` ADD PRIMARY KEY (`tag`,`cache_id`) ) ) [2] => Array ( [file] => /home/mobilslf/public_html/app/code/core/Mage/Core/sql/core_setup/mysql4-upgrade-0.8.27-0.8.28.php [line] => 34 [function] => addKey [class] => Varien_Db_Adapter_Pdo_Mysql [type] => -> [args] => Array ( [0] => core_cache_tag [1] => [2] => Array ( [0] => tag [1] => cache_id ) [3] => PRIMARY ) ) [3] => Array ( [file] => /home/mobilslf/public_html/app/code/core/Mage/Core/Model/Resource/Setup.php [line] => 376 [args] => Array ( [0] => /home/mobilslf/public_html/app/code/core/Mage/Core/sql/core_setup/mysql4-upgrade-0.8.27-0.8.28.php ) [function] => include ) [4] => Array ( [file] => /home/mobilslf/public_html/app/code/core/Mage/Core/Model/Resource/Setup.php [line] => 289 [function] => _modifyResourceDb [class] => Mage_Core_Model_Resource_Setup [type] => -> [args] => Array ( [0] => upgrade [1] => 0.8.27 [2] => 0.8.28 ) ) [5] => Array ( [file] => /home/mobilslf/public_html/app/code/core/Mage/Core/Model/Resource/Setup.php [line] => 233 [function] => _upgradeResourceDb [class] => Mage_Core_Model_Resource_Setup [type] => -> [args] => Array ( [0] => 0.8.27 [1] => 0.8.28 ) ) [6] => Array ( [file] => /home/mobilslf/public_html/app/code/core/Mage/Core/Model/Resource/Setup.php [line] => 161 [function] => applyUpdates [class] => Mage_Core_Model_Resource_Setup [type] => -> [args] => Array ( ) ) [7] => Array ( [file] => /home/mobilslf/public_html/app/code/core/Mage/Core/Model/App.php [line] => 399 [function] => applyAllUpdates [class] => Mage_Core_Model_Resource_Setup [type] => :: [args] => Array ( ) ) [8] => Array ( [file] => /home/mobilslf/public_html/app/code/core/Mage/Core/Model/App.php [line] => 329 [function] => _initModules [class] => Mage_Core_Model_App [type] => -> [args] => Array ( ) ) [9] => Array ( [file] => /home/mobilslf/public_html/app/Mage.php [line] => 627 [function] => run [class] => Mage_Core_Model_App [type] => -> [args] => Array ( [0] => Array ( [scope_code] => [scope_type] => store [options] => Array ( ) ) ) ) [10] => Array ( [file] => /home/mobilslf/public_html/index.php [line] => 80 [function] => run [class] => Mage [type] => :: [args] => Array ( [0] => [1] => store ) ) ) [previous:Exception:private] => [errorInfo] => Array ( [0] => 42000 [1] => 1068 [2] => Multiple primary key defined ) )