Re: sql basic question
От | Anton Gavazuk |
---|---|
Тема | Re: sql basic question |
Дата | |
Msg-id | -316905958645820213@unknownmsgid обсуждение исходный текст |
Ответ на | Re: sql basic question (Antonio Parrotta <antonioparrotta@gmail.com>) |
Список | pgsql-sql |
Antonio, but then you can do join between minmax select and source table by distance and get required columns... Thanks, Anton On Dec 28, 2012, at 12:43, Antonio Parrotta <antonioparrotta@gmail.com> wrote: Hi Anton, I need column LABEL and ID as well. By grouping on SIDE these column cannot be included in the query. Thanks - Antonio On 28 December 2012 12:38, Anton Gavazuk <antongavazuk@gmail.com> wrote: > Do the child Select min, max from... Group by side > > Then you can do whatever is required... > > Thanks, > Anton > > On Dec 28, 2012, at 12:23, Antonio Parrotta <antonioparrotta@gmail.com> > wrote: > > Hi All, > > I have this table: > LABEL ID Distance SIDE > "15"; 119006; 0.10975569030617; 1 > "14"; 64054; 0.118448307450912; 0 > "16"; 64055; 0.176240407317772; 0 > "20"; 64057; 0.39363711745035; 0 > "19"; 64056; 0.41205442839764; 1 > "24"; 119007; 0.59758734628752; 0 > > What I want to achieve is a result table with min and max distance for > each side, limiting to 2 (basically the boundaries of each SIDE) > > so the result should be: > LABEL ID Distance SIDE > "15"; 119006; 0.10975569030617; 1 > "19"; 64056; 0.41205442839764; 1 > "14"; 64054; 0.118448307450912; 0 > "24"; 119007; 0.59758734628752; 0 > > > Thanks a lot > > > - Antonio > y > >
В списке pgsql-sql по дате отправления: