Re: full join question...
| От | Tom Lane | 
|---|---|
| Тема | Re: full join question... | 
| Дата | |
| Msg-id | 12591.1144264154@sss.pgh.pa.us обсуждение исходный текст  | 
		
| Ответ на | Re: full join question... ("Jonas F. Henriksen" <jonas.f.henriksen@imr.no>) | 
| Ответы | 
                	
            		Re: full join question...
            		
            		 | 
		
| Список | pgsql-general | 
"Jonas F. Henriksen" <jonas.f.henriksen@imr.no> writes:
> Well, the problem is I want the result on one row for each depth, so it
> will fit nicely into a table, like this:
> depth measuretype1_value measuretype2_value
> 10    1.78    2.55
> 20    2.12
> 30        3.12
> 40    1.3    1.4
I think what you have to do is filter the rows according to measuretype
*before* you join them.  Something like
select * from
  (select depth, value as measuretype1_value from testtable
   where measuretype = 1040) ss1
  full join
  (select depth, value as measuretype2_value from testtable
   where measuretype = 4001) ss2
  using (depth);
            regards, tom lane
		
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