Re: Printing LSN made easy

On Mon, Nov 30, 2020 at 7:38 PM Li Japin <japinli(at)hotmail(dot)com> wrote:

> Hi,
>
> On Nov 30, 2020, at 9:06 PM, Ashutosh Bapat <ashutosh(dot)bapat(dot)oss(at)gmail(dot)com>
> wrote:
>
> On Fri, Nov 27, 2020 at 9:51 PM Li Japin <japinli(at)hotmail(dot)com> wrote:
>
>
> Hi,
>
> Here, we cannot use sizeof(but) to get the buf size, because it is a
> pointer, so it always
> 8 bytes on 64-bit or 4 bytes on 32-bit machine.
>
>
> For an array, the sizeof() returns the size of memory consumed by the
> array. See section "Application to arrays" at
> https://en.wikipedia.org/wiki/Sizeof.
>
>
> That’s true! However, in pg_lsn_out_buffer(), it converts to a pointer,
> not an array. See the following test:
>
>
Ah! Thanks for pointing that out. I have fixed this in my repository.
However, from Alvaro's reply it looks like the approach is not acceptable,
so I am not posting the fixed version here.

--
Best Wishes,
Ashutosh