Hi Mihail, Looking at 0004, I think IsIndexCompatibleAsArbiter() should map the attribute numbers, in case the partition has a different column layout than the parent (e.g. in case there are dropped columns or just different column orders)
Regards -- Álvaro Herrera 48°01'N 7°57'E — https://www.EnterpriseDB.com/ "We have labored long to build a heaven, only to find it populated with horrors" (Prof. Milton Glass)
