Hi, With PG16's 19d8e230, we got rid of BRIN's blocking of HOT updates, but I just realized that we failed to update the README.HOT document with this new exception for summarizing indexes.
Attached a patch that updates that document, detailing the related rationale. I'm not sure if such internal documentation is relevant for backpatching, but I also don't think it woudl hurt to have this included in the REL_16_STABLE branch. Kind regards, Matthias van de Meent Neon (https://neon.tech/)
v1-0001-Add-documentation-in-README.HOT-for-handling-summ.patch
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