On Thu, Jun 2, 2011 at 10:52 PM, fanngyuan <fanngyuan@gmail.com> wrote:
> hi guys:
> I'm using int[] in postgrsql to store int array. I want to get max value
> of each row . While I can't find any function to get it(max function will
> get max array in one column) . Even I could write a sql function to get the
> max value. I still think a native funtion is better . Can your guys help me?
Please post questions like this to pgsql-general, rather than here.
What you are looking for is unnest:
rhaas=# select max(x) from unnest(array[1,2,3]) x;max
----- 3
(1 row)
--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company
