Re: Can't put sub-queries values in queries results?
От | Manuel Lemos |
---|---|
Тема | Re: Can't put sub-queries values in queries results? |
Дата | |
Msg-id | 1255.238T448T10933985mlemos@acm.org обсуждение исходный текст |
Ответ на | Re: Can't put sub-queries values in queries results? (Stephan Szabo <sszabo@megazone23.bigpanda.com>) |
Ответы |
Re: Can't put sub-queries values in queries results?
|
Список | pgsql-general |
Hello Stephan, On 22-Jul-00 15:50:21, you wrote: >What version are you using? >Current sources allow this, and 7.0.2 should as well. I am using 6.4 . I wanted to use earlier versions but they require a larger shared memory (1MB I suppose) than it is available on my ISP machine. PostgreSQL documentation says that I should ask the system administrator to allow for more shared memory but my ISP won't do it unless I upgrade my hosting option from a virtual server to a dedicated server. Since I can't justify the cost only with this necessity, I am not going to upgrade. I wonder if there isn't another way to configure PostgreSQL build to avoid this problem that did not exist in version 6.4 . >sszabo=# select distinct a, (select count(*) from b where b.a=a.a) from a; > a | ?column? >---+---------- > 3 | 3 > 4 | 1 > | 0 >(3 rows) Yes, that's what I need as long that last a column is not a NULL because that is what I get with joins. Regards, Manuel Lemos Web Programming Components using PHP Classes. Look at: http://phpclasses.UpperDesign.com/?user=mlemos@acm.org -- E-mail: mlemos@acm.org URL: http://www.mlemos.e-na.net/ PGP key: http://www.mlemos.e-na.net/ManuelLemos.pgp --
В списке pgsql-general по дате отправления: