Recovering a row result

Hi everybody!

 

I'm migrating some sybase store procedures to postgres functions,

In sybase I can write:

--------------

create proc algo()

as

if exists (something)

  return -900;

else

  SELECT * from tabla

  return 0

-------------

 

Inside of my procedure I don't use the SELECT result, however I can recover the row result after the procedure execution using "db libraries".

 

I don't know if in postgres exists something like this, does anybody can help me?

 

thanks in advance!

 

 

Luis A. Perez Paz