you probably want to use cast() from sqlalchemy.dialects.postgresql import UUID from sqlalchemy import cast
cast(MyModel.data['track']['id'], UUID) == UserTrack.id see the examples at https://docs.sqlalchemy.org/en/13/core/type_basics.html#sqlalchemy.types.JSON On Thu, Jun 20, 2019, at 3:25 PM, Jesse Finnegan wrote: > Bare with me. I'm some what new to SQL Alchemy so feel free to let me know if > there is any info I can provide. > > I was wondering how I could type cast a jsonb (which should have a UUID init) > to a UUID or vice versa in a .join? > > I have the following code: > .join( > CandidateActivity, > db.and_( > User.id == CandidateActivity.candidate_id, > CandidateActivity.type.in_(['question_answered', 'question_viewed', > 'feedback_clicked', 'feedback_inbound']), > db.or_(CandidateActivity.data['track']['id'] == UserTrack.track_id, > CandidateActivity.data['track']['track_id'] == UserTrack.track_id) > ), > isouter=True > ) \ > > > with the db.or_ causing the following error: > "sqlalchemy.exc.ProgrammingError: (psycopg2.ProgrammingError) operator does > not exist: jsonb = uuid", > "LINE 2: ...(((candidate_activities.data -> 'track') -> 'id') = user_tra...", > " ^", > "HINT: No operator matches the given name and argument type(s). You might > need to add explicit type casts.", > > > > I've tried casting one or the other to a string with no luck and I don't see > anything in google that specifies the solution to this problem that I have > found. > > > Thank you in advance for any help. > > -- > 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. > To view this discussion on the web visit > https://groups.google.com/d/msgid/sqlalchemy/e273b6d6-b851-4914-aa02-9e50ac3b7105%40googlegroups.com > > <https://groups.google.com/d/msgid/sqlalchemy/e273b6d6-b851-4914-aa02-9e50ac3b7105%40googlegroups.com?utm_medium=email&utm_source=footer>. > 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. To view this discussion on the web visit https://groups.google.com/d/msgid/sqlalchemy/260bd3ce-5a2f-4a86-80a7-8bda65fb3185%40www.fastmail.com. For more options, visit https://groups.google.com/d/optout.
