Re: Subqueries

alias v not visible in sub-query?
----- Original Message -----
From: Pascal Tufenkji
To: pgsql-sql(at)postgresql(dot)org
Sent: Thursday, October 30, 2008 12:17 PM
Subject: [SQL] Subqueries

Hello,

I don't understand the following error.

Can anyone help me plz

Thx

Pascal

select *

from sip_vacations_v v

left join

(

select pe.emp_id,mg.mat_id,mg.groupe,count(p.id) * 1.5 as nb_heures

from mat_grp_v mg

inner join planification_v p on p.mat_grp_id = mg.id

inner join planification_ens_v pe on pe.planification_id = p.id

where mg.annee_univ = v.annee and mg.semestre = v.sem_civ

group by pe.emp_id,mg.mat_id,mg.groupe

) p on p.emp_id = v.emp_id

and p.mat_id = v.mat_id

and p.groupe = v.groupe

ERROR: invalid reference to FROM-clause entry for table "v"

LINE 9: where mg.annee_univ = v.annee and mg.semestre = v.sem_civ

^

HINT: There is an entry for table "v", but it cannot be referenced from this part of the query.