Simon Riggs wrote:
GetSnapshotData() sets RecentGlobalXmin to the result of the snapshot's xmin.
No. RecentGlobalXmin is set to the oldest *xmin* observed, across all running transactions. TransactionXmin is the xid of the oldest running transaction. IOW, RecentGlobalXmin is the xid of transaction that the oldest running transaction sees as running.
-- Heikki Linnakangas EnterpriseDB http://www.enterprisedb.com -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
