aaaa That's because the access on this case is done to the existing row using the table's name / alias , and to the rows that we attempt to insert using the excluded
Thank you Peter Armand > On Jul 31, 2017, at 4:31 PM, Peter Geoghegan <p...@bowt.ie> wrote: > > armand pirvu <armand.pi...@gmail.com> wrote: >> But what if in the conflict situation I want to performa the update ONLY if >> the record is different. The update seems to happen no matter what >> In other words is there anyway I can filter the update to happen (based on >> the sample date) only for 112 since col2 is different ? > > That's quite possible. An ON CONFLICT's UPDATE accepts a WHERE clause, > which can reference both existing and excluded tuples. That WHERE clause > can back out of the UPDATE based on whatever criteria you like. > > -- > Peter Geoghegan -- Sent via pgsql-general mailing list (pgsql-general@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
