Błąd mysql: Unknown column 'constant' in 'WHERE'
select
q.*,
c.name as category_name,
cb.name as car_brand_name,
cm.name as car_model_name,
sb.name as system_brand_name,
e.name as engine_name,
rb.name as reductor_brand_name,
ib.name as injectors_brand_name,
st.name as system_type_name,
u.login as user_name
from
expert_questions as q left join
expert_categories as c on q.category_id=c.id left join
config_brands as cb on q.car_brand_id=cb.id left join
config_models as cm on q.car_model_id=cm.id left join
config_system_brands as sb on q.system_brand_id=sb.id left join
config_engines as e on q.engine_id=e.id left join
config_reductor_brands as rb on q.reductor_brand_id=rb.id left join
config_injectors_brands as ib on q.injectors_brand_id=ib.id left join
config_system_types as st on q.system_type_id=st.id left join
users_page as u on q.user_id=u.id
where q.`show` =1 and constant=0
order by q.constant desc, q.date desc