- Архив списков рассылки pgsql-sql
| От | JORGE MALDONADO |
|---|---|
| Тема | |
| Дата | |
| Msg-id | CAAY=A7_meqy6Ez80rNaAw+gZ1ZCkJOz=jxPw9dgTGR6Z1fg4kQ@mail.gmail.com обсуждение исходный текст |
| Ответы |
Re:
|
| Список | pgsql-sql |
I have the following query:
SELECT
sem_clave,
to_char(secc_esp_media.sem_fechareg,'TMMon-DD-YYYY') as sem_fechareg,
sem_seccion,
sem_titulo,
sem_enca,
tmd_nombre,
tmd_archivo,
tmd_origen,
gen_nombre,
smd_nombre,
prm_urlyoutube,
prm_prmyoutube,
prm_urlsoundcloud,
prm_prmsoundcloud
FROM secc_esp_media
INNER JOIN cat_tit_media ON tmd_clave = sem_titulo
INNER JOIN cat_secc_media ON smd_clave = sem_seccion
INNER JOIN cat_generos ON gen_clave = tmd_genero
INNER JOIN parametros ON 1 = 1
WHERE
smd_nombre = 'SOMETHING' AND
sem_fipub <= 'SOME DATE' ORDER BY sem_fipub DESC, sem_ffpub DESC
I thought it was working fine until I noticed I needed to include a DISTINCT clause as follows:
SELECT DISTINCT ON (sem_clave) ......(the rest of the query is exactly the same as above)
But, when I run it, I get a message telling me that I need an ORDER BY the field "sem_clave" which is the field in the DISTINCT clause. How can I solve this issue without affecting the ORDER BY it already has ?
Regards,
Jorge Maldonado
В списке pgsql-sql по дате отправления: