PDOException Object
(
    [message:protected] => SQLSTATE[42000]: Syntax error or access violation: 1091 Can't DROP 'IDX_CATALOG_PRODUCT_OPTION_TITLE_SI_OI'; check that column/key exists
    [string:private] => 
    [code:protected] => 42000
    [file:protected] => /var/www/web1/web/lib/Varien/Db/Adapter/Pdo/Mysql.php
    [line:protected] => 276
    [trace:private] => Array
        (
            [0] => Array
                (
                    [file] => /var/www/web1/web/lib/Varien/Db/Adapter/Pdo/Mysql.php
                    [line] => 276
                    [function] => query
                    [class] => PDO
                    [type] => ->
                    [args] => Array
                        (
                            [0] => ALTER TABLE `catalog_product_option_title` DROP KEY `IDX_CATALOG_PRODUCT_OPTION_TITLE_SI_OI`
                        )

                )

            [1] => Array
                (
                    [file] => /var/www/web1/web/lib/Varien/Db/Adapter/Pdo/Mysql.php
                    [line] => 517
                    [function] => raw_query
                    [class] => Varien_Db_Adapter_Pdo_Mysql
                    [type] => ->
                    [args] => Array
                        (
                            [0] => ALTER TABLE `catalog_product_option_title` DROP KEY `IDX_CATALOG_PRODUCT_OPTION_TITLE_SI_OI`
                        )

                )

            [2] => Array
                (
                    [file] => /var/www/web1/web/app/code/core/Mage/Catalog/sql/catalog_setup/mysql4-upgrade-1.4.0.0.13-1.4.0.0.14.php
                    [line] => 38
                    [function] => dropKey
                    [class] => Varien_Db_Adapter_Pdo_Mysql
                    [type] => ->
                    [args] => Array
                        (
                            [0] => catalog_product_option_title
                            [1] => IDX_CATALOG_PRODUCT_OPTION_TITLE_SI_OI
                        )

                )

            [3] => Array
                (
                    [file] => /var/www/web1/web/app/code/core/Mage/Core/Model/Resource/Setup.php
                    [line] => 360
                    [args] => Array
                        (
                            [0] => /var/www/web1/web/app/code/core/Mage/Catalog/sql/catalog_setup/mysql4-upgrade-1.4.0.0.13-1.4.0.0.14.php
                        )

                    [function] => include
                )

            [4] => Array
                (
                    [file] => /var/www/web1/web/app/code/core/Mage/Core/Model/Resource/Setup.php
                    [line] => 273
                    [function] => _modifyResourceDb
                    [class] => Mage_Core_Model_Resource_Setup
                    [type] => ->
                    [args] => Array
                        (
                            [0] => upgrade
                            [1] => 0.7.69
                            [2] => 1.4.0.0.21
                        )

                )

            [5] => Array
                (
                    [file] => /var/www/web1/web/app/code/core/Mage/Core/Model/Resource/Setup.php
                    [line] => 217
                    [function] => _upgradeResourceDb
                    [class] => Mage_Core_Model_Resource_Setup
                    [type] => ->
                    [args] => Array
                        (
                            [0] => 0.7.69
                            [1] => 1.4.0.0.21
                        )

                )

            [6] => Array
                (
                    [file] => /var/www/web1/web/app/code/core/Mage/Core/Model/Resource/Setup.php
                    [line] => 153
                    [function] => applyUpdates
                    [class] => Mage_Core_Model_Resource_Setup
                    [type] => ->
                    [args] => Array
                        (
                        )

                )

            [7] => Array
                (
                    [file] => /var/www/web1/web/app/code/core/Mage/Core/Model/App.php
                    [line] => 363
                    [function] => applyAllUpdates
                    [class] => Mage_Core_Model_Resource_Setup
                    [type] => ::
                    [args] => Array
                        (
                        )

                )

            [8] => Array
                (
                    [file] => /var/www/web1/web/app/code/core/Mage/Core/Model/App.php
                    [line] => 295
                    [function] => _initModules
                    [class] => Mage_Core_Model_App
                    [type] => ->
                    [args] => Array
                        (
                        )

                )

            [9] => Array
                (
                    [file] => /var/www/web1/web/app/Mage.php
                    [line] => 596
                    [function] => run
                    [class] => Mage_Core_Model_App
                    [type] => ->
                    [args] => Array
                        (
                            [0] => Array
                                (
                                    [scope_code] => 
                                    [scope_type] => store
                                    [options] => Array
                                        (
                                        )

                                )

                        )

                )

            [10] => Array
                (
                    [file] => /var/www/web1/web/index.php
                    [line] => 78
                    [function] => run
                    [class] => Mage
                    [type] => ::
                    [args] => Array
                        (
                            [0] => 
                            [1] => store
                        )

                )

        )

    [errorInfo] => Array
        (
            [0] => 42000
            [1] => 1091
            [2] => Can't DROP 'IDX_CATALOG_PRODUCT_OPTION_TITLE_SI_OI'; check that column/key exists
        )

)