On Thu, Feb 09, 2023 at 04:46:04PM -0800, Andres Freund wrote: > I think if we end up breaking compat, we should just drop that > column.
Indeed. > Yep, and I think you are all wrong, and that this is just going to cause > unnecessary pain :). I'm not going to try to prevent the patch from going in > because of this, just to be clear. Catalog attributes have faced a lot of renames across the years, with the same potential of breakages for monitoring tools. I am not saying that all of them are justified, but we have usually done so because it makes sense to reshape things in the way they are now, thinking long-term. Splitting pg_stat_bgwriter into two views does not strike me as something that bad, TBH, because it becomes clearer which stats are attached to which process (bgwriter or checkpointer). (Note: I have not checked in details the stats switching to the new view and how pertinent each choice is.) -- Michael
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