Re: [SQL] simple "select / if found" isn't

On Fri, Dec 16, 2016 at 11:02:37AM +0000, Gary Stainburn wrote:

> All I want to do is return 'found' based on the select but I can't get it to 
> work.  
> 
> If I run 
> 
> select 1 from user_previous_passwords 
>     where u_id=25 and 
>     crypt('MyPaSSword',u_previous_password) = u_previous_password;
> 
> then it returns the matching row(s)
> 
> If I run my function
> 
> create or replace function check_previous_passwords (ID int4, PASS varchar) 
> returns boolean as $$

It just _might_ have to do with permissions to
user_previous_passwords.

If the function somehow got installed as "security definer"
and definer does not have RLS-based (!) permissions on
user_previous_passwords then it won't find rows.

A shot in the dark...

Karsten
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