Rebased the patches, as v8 no longer applied cleanly on the latest master. The rebased v9 patches are attached.
Also, in my earlier reply to Bharath I referred to [1] but forgot to include the reference itself, so I am adding it here. [1] https://www.postgresql.org/message-id/CAA5RZ0sjMgMo4Xg-niyyF-CpkQ_CK6uOfNKYT%3D9RmiBkAxQkbQ%40mail.gmail.com -- Best regards, Shinya Kato NTT OSS Center
v9-0001-Add-infrastructure-to-identify-what-holds-back-th.patch
Description: Binary data
v9-0002-Report-oldest-xmin-blocker-when-VACUUM-cannot-rem.patch
Description: Binary data
