SELECT 
        
        webshop_products.*,
        
        IF((SELECT `wp`.`expected_delivery_date` FROM `webshop_purchase_items` AS purchase_items 
        LEFT JOIN `webshop_purchase` AS wp ON purchase_items.purchase_id = wp.id
        WHERE purchase_items.product_identifier_id = webshop_products.identifier_id AND wp.completed = '0' AND purchase_items.product_variant_id = 0
        ORDER BY `wp`.`expected_delivery_date` ASC LIMIT 0,1) IS NOT NULL, 
        
        (SELECT `wp`.`expected_delivery_date` FROM `webshop_purchase_items` AS purchase_items 
        LEFT JOIN `webshop_purchase` AS wp ON purchase_items.purchase_id = wp.id

        WHERE purchase_items.product_identifier_id = webshop_products.identifier_id AND wp.completed = '0' AND purchase_items.product_variant_id = 0
        
        ORDER BY `wp`.`expected_delivery_date` ASC LIMIT 0,1), 
        
        webshop_products.expected_delivery_date
        ) AS expected_delivery_date,
        
        
        webshop_products.id AS id, 
        i.name AS pri_image, 
        pi.id AS pri_image_id,
        i2.name AS hover_image,
        pi2.id AS hover_image_id,
        wu.name AS unit_name,
        sl.external_location,
        wo.name AS category1_name,
        IF((SELECT id FROM `webshop_product_composed` WHERE produkt_identifier_id=webshop_products.identifier_id LIMIT 1), 1, 0) AS is_composed_master_product,
        (SELECT GROUP_CONCAT(tag_id SEPARATOR ',') FROM `webshop_product_tags` WHERE `product_id`=webshop_products.identifier_id) AS tags_id
        
        FROM `webshop_products` 
        LEFT JOIN `webshop_options` AS wo ON `webshop_products`.`category1` = `wo`.`id`
        LEFT JOIN `webshop_units` AS wu ON webshop_products.unit_id=wu.id
        
        LEFT JOIN `webshop_product_images` AS pi ON webshop_products.identifier_id=pi.product_id AND pi.primary_img='1' 
        LEFT JOIN `webshop_product_images` AS pi2 ON webshop_products.identifier_id=pi2.product_id AND pi2.is_hover_image='1' 
        LEFT JOIN `webshop_stock_locations` AS sl ON sl.id=webshop_products.stock_location_id
        
        LEFT JOIN `images` AS i ON pi.image_id=i.id
        LEFT JOIN `images` AS i2 ON pi2.image_id=i2.id
        
        /*
        LEFT JOIN `webshop_product_composed` AS wpc ON wpc.produkt_identifier_id=webshop_products.identifier_id
        */
        
        
        WHERE `webshop_products`.`hide`!=1 AND (`webshop_products`.`hide_language` != 1 AND `webshop_products`.language_id = 5) AND   `language_id`=5  AND `category1` IN('1423','1421') AND `category2` IN('1561') GROUP BY webshop_products.identifier_id ORDER BY  DESC  <br><br>You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'DESC' at line 48