1054 - Unknown column '1_1049' in 'where clause'

SELECT p.products_id, p.products_model, ptc.categories_id, pd.products_name, p.products_image, pd.products_url, p.products_date_added FROM products p, products_to_categories ptc, products_description pd WHERE p.product_template = 'einzelmeister_tabs.html' AND p.products_id = ptc.products_id AND p.products_id = pd.products_id AND products_status = 1 AND products_quantity > 0 AND ptc.categories_id = 1_1049 AND pd.language_id = 2 ORDER BY p.products_date_added DESC LIMIT 3

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