Re: SQL request change when upgrade from 7.0.2 to 7.1.3

Richard NAGY <richard(at)presenceweb(dot)com> writes:
> SELECT aes.ent_id, e.type, e.nom, aes.sect_id as voulu,
> cvd_new(current_date, e.date_entree, 'new') FROM ass_entrep_sectact aes,
> entreprise e WHERE e.id = aes.ent_id and aes.sect_id <> 3 and
> aes.sect_id <> 9
> and aes.sect_id <> 1 and aes.sect_id <> 13 and aes.sect_id = 56
> UNION
> SELECT distinct on (aes.ent_id) aes.ent_id, e.type, e.nom, aes.sect_id,
> cvd_new(current_date, e.date_entree, 'new') FROM ass_entrep_sectact aes,
> entreprise e WHERE e.id = aes.ent_id and aes.sect_id <> 3 and
> aes.sect_id <> 9
> and aes.sect_id <> 1 and aes.sect_id <> 13 and aes.sect_id <> 56 and
> aes.ent_id
> not in (SELECT ent_id FROM ass_entrep_sectact WHERE sect_id = 56 and
> sect_id <> 3
> and sect_id <> 9 and sect_id <> 1 and sect_id <> 13) ORDER BY e.type,
> e.nom

ORDER BY applied to the result of a UNION has to be on the output
columns of the UNION. "e.type" etc are names of input-table columns.
Try just "type" and "nom", which will refer to the second and third
output columns of the UNION.

Pre-7.1 got this wrong (and would sometimes produce wrong output
ordering or even a backend crash, if the arms of the UNION didn't
all yield the same datatype).

regards, tom lane