merge() has to use query() to see if a particular primary key already exists, which calls query, which calls autoflush.
this is the correct behavior because autoflush would need to make this work: obj = MyObj(id=1) session.add(obj) obj2 = session.merge(MyObj(id=1)) # this should return obj above as "persistent", hence needs to autoflush On Fri, Jan 11, 2019 at 4:25 PM HP3 <henddher.pedr...@gmail.com> wrote: > > Thank you very much Mike! > >> with session.no_autoflush: >> obj = session.merge(my_thing) >> for r in session.new: >> .... >> for r in session.dirty: >> ... > > > session.new is showing the newly added :) > > I'll need to experiment more to make sure all my cases are covered. > > I didn't know autoflush was True by default and that merge() would internally > flush. > > Thanks for pointing that out! > > -- > SQLAlchemy - > The Python SQL Toolkit and Object Relational Mapper > > http://www.sqlalchemy.org/ > > To post example code, please provide an MCVE: Minimal, Complete, and > Verifiable Example. See http://stackoverflow.com/help/mcve for a full > description. > --- > You received this message because you are subscribed to the Google Groups > "sqlalchemy" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to sqlalchemy+unsubscr...@googlegroups.com. > To post to this group, send email to sqlalchemy@googlegroups.com. > Visit this group at https://groups.google.com/group/sqlalchemy. > For more options, visit https://groups.google.com/d/optout. -- SQLAlchemy - The Python SQL Toolkit and Object Relational Mapper http://www.sqlalchemy.org/ To post example code, please provide an MCVE: Minimal, Complete, and Verifiable Example. See http://stackoverflow.com/help/mcve for a full description. --- You received this message because you are subscribed to the Google Groups "sqlalchemy" group. To unsubscribe from this group and stop receiving emails from it, send an email to sqlalchemy+unsubscr...@googlegroups.com. To post to this group, send email to sqlalchemy@googlegroups.com. Visit this group at https://groups.google.com/group/sqlalchemy. For more options, visit https://groups.google.com/d/optout.
