Hi Vignesh, On Thu, Aug 1, 2019 at 9:32 PM vignesh C <vignes...@gmail.com> wrote: > In the undo system, we use full-transaction-id for transactions. For > rollback of prepared transactions, we were planning to use > FullTransactionId by combining TransactionId and epoch, but as > suggested by multiple people in that email chain [1][2], the better > idea is to store Full-transactionid in TwoPhaseFileHeader
+1 > Backward compatibility need not be handled for this scnario as upgrade > does not support having open prepared transactions. +1 > There is also one more comment which is yet to be concluded. The > comment discusses about changing subxids which are of TransactionId > type to FullTransactionId type being written in two phase transaction > file. We could not conclude this as the data is similarly stored in > TransactionStateData. No comment on that question or the patch yet but could you please add this to the next Commitfest so that cfbot starts testing it? -- Thomas Munro https://enterprisedb.com
