Hello, While working on my talk for PGConf.NYC next week I came across this bullet in the docs on heap only tuples:
> Old versions of updated rows can be completely removed during normal > operation, including SELECTs, instead of requiring periodic vacuum > operations. (This is possible because indexes do not reference their page > item identifiers.) But when a HOT update happens the entry in an (logically unchanged) index still points to the original heap tid, and that line item is updated with a pointer to the new line pointer in the same page. Assuming I'm understanding this correctly, attached is a patch correcting the description. Thanks, James Coleman
v1-0001-Correct-HOT-docs-to-account-for-LP_REDIRECT.patch
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