如果创建新表的代码使用dbDelta() （应该），您可以筛选查询（请参见wp-admin/includes/upgrade.php):

add_filter( \'dbdelta_create_queries\', function( Array $queries )
{
    foreach ( $queries as $table => $query )
    {
        if ( FALSE !== stripos( $query, \'CREATE TABLE\' ) )
        {
            // change the query here
        }
    }

    return $queries;
});