Heikki Linnakangas <heikki@enterprisedb.com> writes:
> While looking at the HOT patch, I noticed that if there's an index tuple
> pointing to a non-existing heap tuple, we just silently ignore it.

This is intentional --- consider case where VACUUM has removed both
index and heap entries while some other (amazingly slow...) process is
in flight from the index to the heap.

regards, tom lane

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