Robert, my understanding is that SQLAlchemy knows nothing about the Postgres's `similarity` function - sqlalchemy.func just magically generates the SQL output depending on which member you invoke. Try `func.magic_unicorns()`. So, there's not much to optimize here - it outputs what you give it. See this for details: http://docs.sqlalchemy.org/en/latest/core/sqlelement.html#sqlalchemy.sql.expression.func
It's up to you to build a query which uses the `%` syntax if you need it. SQLAlchemy's Columns have the `.op()` method for that (http://docs.sqlalchemy.org/en/rel_1_0/core/sqlelement.html#sqlalchemy.sql.expression.ColumnElement.op) So this raw sql query: "... WHERE model.description % 'string' AND similarity(model.description, 'string') > 0.5" becomes my_query.filter(Model.description.op('%')('string')).filter(func.similarity(Model.description, 'string') > 0.5) -- 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.
