I am studying the postgresql kernel and the following question arose... I hope somebody out there can help me find the answers to my doubts. Scenario: Transaction T1 updates a given tuple -- xmax is set to T1 on that tuple ... later on, T1 aborts... we believe that in this circumstance HEAP_XMAX_
Hi, We're a team from Rome University (Italy) and we are working on an hacking of PostgreSQL MVCC. The basic idea is to have multiple instances of a same user transaction concurrently executing against the DB in order to achieve fault tolerance. We do not want to bother you with the details o
