On Sun, Nov 29, 2020 at 10:40 PM Tom Lane <t...@sss.pgh.pa.us> wrote:
> Michael Paquier <mich...@paquier.xyz> writes: > > On Fri, Nov 27, 2020 at 04:10:27PM +0530, Ashutosh Bapat wrote: > >> Off list Craig Ringer suggested introducing a new format specifier > >> similar to %m for LSN but I did not get time to take a look at the > >> relevant code. AFAIU it's available only to elog/ereport, so may not > >> be useful generally. But teaching printf variants about the new format > >> would be the best solution. However, I didn't find any way to do that. > > > -1. %m maps to errno, that is much more generic. A set of macros > > that maps to our internal format would be fine enough IMO. > > Agreed. snprintf.c is meant to implement a recognized standard > (ok, %m is a GNU extension, but it's still pretty standard). > I'm not on board with putting PG-only extensions in there. > Thanks for the clarification. -- Best Wishes, Ashutosh
