On Tue, Jan 25, 2022 at 01:12:32PM +0900, Michael Paquier wrote: > Once you remove the requirement of a running server, we have basically > what has been recently implemented with postgres -C for > runtime-computed GUCs, because we already go through a read of the > control file to be able to print those GUCs with their correct > values. This also means that it is already possible to check if a > data folder is compatible with a set of binaries with this facility, > as any postgres -C command with a runtime GUC would trigger this > check. Using any of the existing runtime GUCs may be confusing, but > that would work. And I am not really convinced that we have any need > to add a specific GUC for this purpose, be it a sort of > is_controlfile_valid or controlfile_checksum (CRC32 of the control > file).
Thinking more about this one, we can already do that, so I have marked the patch as RwF. Perhaps we could just add a GUC, but that feels a bit dummy. -- Michael
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