PDOException Object
(
    [message:protected] => SQLSTATE[42000]: Syntax error or access violation: 1064 You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ''
        . ' default NULL' at line 1
    [string:Exception:private] => 
    [code:protected] => 42000
    [file:protected] => /home/snowimag/public_html_1/lib/Zend/Db/Statement/Pdo.php
    [line:protected] => 228
    [trace:Exception:private] => Array
        (
            [0] => Array
                (
                    [file] => /home/snowimag/public_html_1/lib/Zend/Db/Statement/Pdo.php
                    [line] => 228
                    [function] => execute
                    [class] => PDOStatement
                    [type] => ->
                    [args] => Array
                        (
                            [0] => Array
                                (
                                )

                        )

                )

            [1] => Array
                (
                    [file] => /home/snowimag/public_html_1/lib/Varien/Db/Statement/Pdo/Mysql.php
                    [line] => 110
                    [function] => _execute
                    [class] => Zend_Db_Statement_Pdo
                    [type] => ->
                    [args] => Array
                        (
                            [0] => Array
                                (
                                )

                        )

                )

            [2] => Array
                (
                    [file] => /home/snowimag/public_html_1/app/code/core/Zend/Db/Statement.php
                    [line] => 311
                    [function] => _execute
                    [class] => Varien_Db_Statement_Pdo_Mysql
                    [type] => ->
                    [args] => Array
                        (
                            [0] => Array
                                (
                                )

                        )

                )

            [3] => Array
                (
                    [file] => /home/snowimag/public_html_1/lib/Zend/Db/Adapter/Abstract.php
                    [line] => 479
                    [function] => execute
                    [class] => Zend_Db_Statement
                    [type] => ->
                    [args] => Array
                        (
                            [0] => Array
                                (
                                )

                        )

                )

            [4] => Array
                (
                    [file] => /home/snowimag/public_html_1/lib/Zend/Db/Adapter/Pdo/Abstract.php
                    [line] => 238
                    [function] => query
                    [class] => Zend_Db_Adapter_Abstract
                    [type] => ->
                    [args] => Array
                        (
                            [0] => ALTER TABLE `mg_customgrid_grid` ADD COLUMN `default_filter_behaviour` enum ('default', 'force_original', 'force_custom', 'merge_default', 'merge_on_original', 'merge_on_custom') '
        . ' default NULL 
                            [1] => Array
                                (
                                )

                        )

                )

            [5] => Array
                (
                    [file] => /home/snowimag/public_html_1/lib/Varien/Db/Adapter/Pdo/Mysql.php
                    [line] => 428
                    [function] => query
                    [class] => Zend_Db_Adapter_Pdo_Abstract
                    [type] => ->
                    [args] => Array
                        (
                            [0] => ALTER TABLE `mg_customgrid_grid` ADD COLUMN `default_filter_behaviour` enum ('default', 'force_original', 'force_custom', 'merge_default', 'merge_on_original', 'merge_on_custom') '
        . ' default NULL 
                            [1] => Array
                                (
                                )

                        )

                )

            [6] => Array
                (
                    [file] => /home/snowimag/public_html_1/lib/Varien/Db/Adapter/Pdo/Mysql.php
                    [line] => 347
                    [function] => query
                    [class] => Varien_Db_Adapter_Pdo_Mysql
                    [type] => ->
                    [args] => Array
                        (
                            [0] => ALTER TABLE `mg_customgrid_grid` ADD COLUMN `default_filter_behaviour` enum ('default', 'force_original', 'force_custom', 'merge_default', 'merge_on_original', 'merge_on_custom') '
        . ' default NULL 
                        )

                )

            [7] => Array
                (
                    [file] => /home/snowimag/public_html_1/lib/Varien/Db/Adapter/Pdo/Mysql.php
                    [line] => 848
                    [function] => raw_query
                    [class] => Varien_Db_Adapter_Pdo_Mysql
                    [type] => ->
                    [args] => Array
                        (
                            [0] => ALTER TABLE `mg_customgrid_grid` ADD COLUMN `default_filter_behaviour` enum ('default', 'force_original', 'force_custom', 'merge_default', 'merge_on_original', 'merge_on_custom') '
        . ' default NULL 
                        )

                )

            [8] => Array
                (
                    [file] => /home/snowimag/public_html_1/app/code/community/BL/CustomGrid/sql/customgrid_setup/mysql4-upgrade-0.8.4.4-0.8.9.php
                    [line] => 126
                    [function] => addColumn
                    [class] => Varien_Db_Adapter_Pdo_Mysql
                    [type] => ->
                    [args] => Array
                        (
                            [0] => mg_customgrid_grid
                            [1] => default_filter_behaviour
                            [2] => enum ('default', 'force_original', 'force_custom', 'merge_default', 'merge_on_original', 'merge_on_custom') '
        . ' default NULL
                        )

                )

            [9] => Array
                (
                    [file] => /home/snowimag/public_html_1/app/code/core/Mage/Core/Model/Resource/Setup.php
                    [line] => 624
                    [args] => Array
                        (
                            [0] => /home/snowimag/public_html_1/app/code/community/BL/CustomGrid/sql/customgrid_setup/mysql4-upgrade-0.8.4.4-0.8.9.php
                        )

                    [function] => include
                )

            [10] => Array
                (
                    [file] => /home/snowimag/public_html_1/app/code/core/Mage/Core/Model/Resource/Setup.php
                    [line] => 437
                    [function] => _modifyResourceDb
                    [class] => Mage_Core_Model_Resource_Setup
                    [type] => ->
                    [args] => Array
                        (
                            [0] => upgrade
                            [1] => 0.8.4
                            [2] => 0.9.9
                        )

                )

            [11] => Array
                (
                    [file] => /home/snowimag/public_html_1/app/code/core/Mage/Core/Model/Resource/Setup.php
                    [line] => 320
                    [function] => _upgradeResourceDb
                    [class] => Mage_Core_Model_Resource_Setup
                    [type] => ->
                    [args] => Array
                        (
                            [0] => 0.8.4
                            [1] => 0.9.9
                        )

                )

            [12] => Array
                (
                    [file] => /home/snowimag/public_html_1/app/code/core/Mage/Core/Model/Resource/Setup.php
                    [line] => 235
                    [function] => applyUpdates
                    [class] => Mage_Core_Model_Resource_Setup
                    [type] => ->
                    [args] => Array
                        (
                        )

                )

            [13] => Array
                (
                    [file] => /home/snowimag/public_html_1/app/code/core/Mage/Core/Model/App.php
                    [line] => 417
                    [function] => applyAllUpdates
                    [class] => Mage_Core_Model_Resource_Setup
                    [type] => ::
                    [args] => Array
                        (
                        )

                )

            [14] => Array
                (
                    [file] => /home/snowimag/public_html_1/app/code/core/Mage/Core/Model/App.php
                    [line] => 343
                    [function] => _initModules
                    [class] => Mage_Core_Model_App
                    [type] => ->
                    [args] => Array
                        (
                        )

                )

            [15] => Array
                (
                    [file] => /home/snowimag/public_html_1/app/Mage.php
                    [line] => 684
                    [function] => run
                    [class] => Mage_Core_Model_App
                    [type] => ->
                    [args] => Array
                        (
                            [0] => Array
                                (
                                    [scope_code] => 
                                    [scope_type] => store
                                    [options] => Array
                                        (
                                        )

                                )

                        )

                )

            [16] => Array
                (
                    [file] => /home/snowimag/public_html_1/index.php
                    [line] => 95
                    [function] => run
                    [class] => Mage
                    [type] => ::
                    [args] => Array
                        (
                            [0] => 
                            [1] => store
                        )

                )

        )

    [previous:Exception:private] => 
    [errorInfo] => Array
        (
            [0] => 42000
            [1] => 1064
            [2] => You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ''
        . ' default NULL' at line 1
        )

)