Re: update some elements in the array

Jouni Ahto wrote:

> On Thu, 13 Jul 2000, Bernie Huang wrote:
>
> > I want to update the last three element without affecting other
> > elements.  I could have done it by retrieving all elements in the array
> > first and the do a
> >
> > UPDATE table
> > SET arr='{"1","2","3","4","5"}'
> > WHERE blahblah
> >
> > however, that might be troublesome, so I tried
> >
> > UPDATE table
> > SET arr[1]=val1
> >     arr[2]=val2...
> >
> > but it didn't work.  If anyone knows, please tell me. Thanks for the
> > help.
>
> What does "it didn't work" in this case exactly mean?
>
> Did some testing with postgres, results;
>
> create table test (arr text[]);
> insert into test values ('{"1","2","3","4","5"}');
> select * from test;
>           arr
> -----------------------
>  {"1","2","3","4","5"}
> (1 row)
> update test set arr[4]='8', arr[2]='9';
> select * from test;
>           arr
> -----------------------
>  {"1","9","3","8","5"}
> (1 row)
>
> So, updating arrays definitely works. Are you having a syntax error
> somewhere or what?
>
> -- Jouni Ahto

Thanks. I forgot the quote...' '
(Man, that quote just drives me nuts...)


- Bernie