On Mon, Nov 19, 2018 at 11:02 PM <jonathan.sando...@facturedo.com> wrote: > > Hi everyone, > > I started with sqlalchemy a couple of weeks ago and I still have plenty to > learn. I'm trying to translate this query to the expression language, but I > have not been able to get what I need (right now I'm using text):
the ARRAY() call with a subquery inside of it is not really a standard SQL syntax, it looks like you're trying to do a "nested select". I've only known one proprietary database (Akiban, later FoundationDB) that did that kind of query as a normal feature. I would assume in this case you're on Postgresql. Anyway, if you *really* need the SQL to be like that, you can use sqlalchemy.dialects.postgresql.ARRAY with a scalar select inside of it: col = postgresql.ARRAY(select([t.c.title]).select_from(...).where(...).as_scalar()) > SELECT p.id, p.title, > ( > SELECT ARRAY(SELECT t.title > FROM tags_posts pt > JOIN tags t ON t.id=pt.tag > WHERE pt.post = p.id) > ) AS post_tags > FROM posts p > ORDER BY p.title; > > Thanks for any guidance. I've been stuck on this for a couple of days. > > -- > 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.
