Thanks so much for taking a look at this. As you mentioned the patch didn't apply cleanly to 12, but I ended up making the same changes as are in the link you posted, and it fixes the problem in my testing. I appreciate your help.
Take care
On Tue, Dec 22, 2020 at 12:27 PM Tom Lane <tgl@sss.pgh.pa.us> wrote:
I wrote: > This is against HEAD but it seems to apply cleanly to v12. > If you're in a position to rebuild pg_prewarm with the patch, > please see if it resolves the problem for you.
Eh, sorry about that, patch(1) was willing to apply it but the result didn't compile :-(. If you want to try local testing, the version that actually works in v12 is at