PDOException Object
(
    [message:protected] => SQLSTATE[42000]: Syntax error or access violation: 1061 Duplicate key name 'IDX_CUSTOMER'
    [string:private] => 
    [code:protected] => 42000
    [file:protected] => /home/camere/public_html/lib/Varien/Db/Adapter/Pdo/Mysql.php
    [line:protected] => 150
    [trace:private] => Array
        (
            [0] => Array
                (
                    [file] => /home/camere/public_html/lib/Varien/Db/Adapter/Pdo/Mysql.php
                    [line] => 150
                    [function] => query
                    [class] => PDO
                    [type] => ->
                    [args] => Array
                        (
                            [0] => ALTER TABLE `sales_order` ADD INDEX `IDX_CUSTOMER` (`customer_id`)
                        )

                )

            [1] => Array
                (
                    [file] => /home/camere/public_html/lib/Varien/Db/Adapter/Pdo/Mysql.php
                    [line] => 212
                    [function] => raw_query
                    [class] => Varien_Db_Adapter_Pdo_Mysql
                    [type] => ->
                    [args] => Array
                        (
                            [0] => ALTER TABLE `sales_order` ADD INDEX `IDX_CUSTOMER` (`customer_id`)
                        )

                )

            [2] => Array
                (
                    [file] => /home/camere/public_html/app/code/core/Mage/Core/Model/Resource/Setup.php
                    [line] => 487
                    [function] => multi_query
                    [class] => Varien_Db_Adapter_Pdo_Mysql
                    [type] => ->
                    [args] => Array
                        (
                            [0] => 
    ALTER TABLE `sales_order` ADD INDEX `IDX_CUSTOMER` (`customer_id`);

                        )

                )

            [3] => Array
                (
                    [file] => /home/camere/public_html/app/code/core/Mage/Sales/sql/sales_setup/mysql4-upgrade-0.8.25-0.8.26.php
                    [line] => 26
                    [function] => run
                    [class] => Mage_Core_Model_Resource_Setup
                    [type] => ->
                    [args] => Array
                        (
                            [0] => 
    ALTER TABLE `sales_order` ADD INDEX `IDX_CUSTOMER` (`customer_id`);

                        )

                )

            [4] => Array
                (
                    [file] => /home/camere/public_html/app/code/core/Mage/Core/Model/Resource/Setup.php
                    [line] => 262
                    [args] => Array
                        (
                            [0] => /home/camere/public_html/app/code/core/Mage/Sales/sql/sales_setup/mysql4-upgrade-0.8.25-0.8.26.php
                        )

                    [function] => include
                )

            [5] => Array
                (
                    [file] => /home/camere/public_html/app/code/core/Mage/Core/Model/Resource/Setup.php
                    [line] => 172
                    [function] => _modifyResourceDb
                    [class] => Mage_Core_Model_Resource_Setup
                    [type] => ->
                    [args] => Array
                        (
                            [0] => upgrade
                            [1] => 0.8.25
                            [2] => 0.9.14
                        )

                )

            [6] => Array
                (
                    [file] => /home/camere/public_html/app/code/core/Mage/Core/Model/Resource/Setup.php
                    [line] => 139
                    [function] => _upgradeResourceDb
                    [class] => Mage_Core_Model_Resource_Setup
                    [type] => ->
                    [args] => Array
                        (
                            [0] => 0.8.25
                            [1] => 0.9.14
                        )

                )

            [7] => Array
                (
                    [file] => /home/camere/public_html/app/code/core/Mage/Core/Model/Resource/Setup.php
                    [line] => 114
                    [function] => applyUpdates
                    [class] => Mage_Core_Model_Resource_Setup
                    [type] => ->
                    [args] => Array
                        (
                        )

                )

            [8] => Array
                (
                    [file] => /home/camere/public_html/app/code/core/Mage/Core/Model/Config.php
                    [line] => 209
                    [function] => applyAllUpdates
                    [class] => Mage_Core_Model_Resource_Setup
                    [type] => ::
                    [args] => Array
                        (
                        )

                )

            [9] => Array
                (
                    [file] => /home/camere/public_html/app/code/core/Mage/Core/Model/App.php
                    [line] => 230
                    [function] => init
                    [class] => Mage_Core_Model_Config
                    [type] => ->
                    [args] => Array
                        (
                            [0] => Array
                                (
                                )

                        )

                )

            [10] => Array
                (
                    [file] => /home/camere/public_html/app/Mage.php
                    [line] => 397
                    [function] => init
                    [class] => Mage_Core_Model_App
                    [type] => ->
                    [args] => Array
                        (
                            [0] => 
                            [1] => store
                            [2] => Array
                                (
                                )

                        )

                )

            [11] => Array
                (
                    [file] => /home/camere/public_html/app/Mage.php
                    [line] => 416
                    [function] => app
                    [class] => Mage
                    [type] => ::
                    [args] => Array
                        (
                            [0] => 
                            [1] => store
                            [2] => Array
                                (
                                )

                        )

                )

            [12] => Array
                (
                    [file] => /home/camere/public_html/index.php
                    [line] => 46
                    [function] => run
                    [class] => Mage
                    [type] => ::
                    [args] => Array
                        (
                        )

                )

        )

    [errorInfo] => Array
        (
            [0] => 42000
            [1] => 1061
            [2] => Duplicate key name 'IDX_CUSTOMER'
        )

)