WordPress database error – Duplicate key name

I have notice during the upgrade of both Version 2.6.6 and 2.6.7 the following PHP notice in my logs, with debug on.

[28-Oct-2016 15:16:41 UTC] WordPress database error Duplicate key name 'location_type_code' for query ALTER TABLE wp_woocommerce_tax_rate_locations ADD KEY 'location_type_code' ('location_type'(40),'location_code'(90)) made by require_once('wp-load.php'), require_once('wp-config.php'), require_once('wp-settings.php'), do_action('init'), call_user_func_array, WC_Install::check_version, WC_Install::install, WC_Install::create_tables, dbDelta
[28-Oct-2016 15:16:41 UTC] WordPress database error Duplicate key name 'location_type_code' for query ALTER TABLE wp_woocommerce_shipping_zone_locations ADD KEY 'location_type_code' ('location_type'(40),'location_code'(90)) made by require_once('wp-load.php'), require_once('wp-config.php'), require_once('wp-settings.php'), do_action('init'), call_user_func_array, WC_Install::check_version, WC_Install::install, WC_Install::create_tables, dbDelta

It only happens during the update. During normal operations, there is no issue, but I don’t know whether this can have side effects.

Any recommendation on how to resolve this and can this be reproduce by others?

• This topic was modified 8 years, 1 month ago by decarvalhoaa.
• This topic was modified 8 years, 1 month ago by decarvalhoaa.
• This topic was modified 8 years, 1 month ago by decarvalhoaa.