Re: Get max value from an comma separated string

On Mon, May 29, 2006 at 13:22:38 +0200, Mauro Bertoli <bertolima@yahoo.it> wrote:
> Hi, I've a field that contain values-comma-separated
> like
> A) 1;2;3;;5  -- ;2;;4;5
> but also
> B) 12;34;18
> how I can get the max value?
> For A I tried:
> SELECT max(array_upper(string_to_array(answer,';'),1))
> FROM values;
> and work fine, but for B case I don't find a solution
> like
> SELECT max(string_to_array(answer,';')) FROM values;
> 
> Any ideas?
> Thanks for any hint

Don't store the data like that in the database if possible.