Andres Freund escribió:
> I am wondering about the related situation of GetOldestXmin()
> callers. There's a fair bit of duplicated logic in the callers, before
> but especially after this patchset. What about adding 'Relation rel'
> parameter instead of `allDbs' and `systable'? That keeps the logic
> centralized and there's been a fair amount of talk about vacuum
> optimizations that could also use it.
> It's a bit sad that that requires including rel.h from procarray.h...
relcache.h, not rel.h.
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