Re: A question about leakproof

Hi,

On Mon, Oct 17, 2022 at 09:15:20AM +0800, qiumingcheng wrote:
> Hello， My questions are as follows：
> Problem description
> After testing, we don't find the difference between functions of
> proleakproof=true and functions of proleakproof=false (the function is
> described in pg_proc). Can you give specific examples to show that functions
> of proleakproof=true are more secure or can prevent data disclosure than
> functions of proleakproof=false. My related testing process is as follows
> (the rsp_user and wumk used below are the two database users that have been
> created).

Have you looked at
https://wiki.postgresql.org/wiki/What%27s_new_in_PostgreSQL_9.2#Security_barriers_and_Leakproof?