Hi, Antonin > How does HeapTupleSatisfiesSelf() recognize the status of any XID w/o using a > snapshot? Do you mean by checking the commit log (TransactionIdDidCommit) ?
Yes, TransactionIdDidCommit. Another option is just invent a new snapshot type - SnapshotBelieveEverythingCommitted - for that particular case it should work - because all xmin/xmax written into the new table are committed by design.
