0038110421
At the time we check whether the tuple is dead to all running transactions, we've already verified that it isn't visible to our scan, setting hint bits if appropriate. So there's no need to recheck CLOG for the all-dead test we do just a moment later. So, add HeapTupleIsSurelyDead() to test the appropriate condition under the assumption that all relevant hit bits are already set. Review by Tom Lane.
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