1.6.0

Added support for a bunch of Postgres functions, like Upper, Lower, Length, and Ltrim. They can be used in select queries:

from piccolo.query.functions.string import Upper

>>> await Band.select(Upper(Band.name, alias="name"))
[{"name": "PYTHONISTAS"}]

And also in where clauses:

>>> await Band.select().where(Upper(Band.manager.name) == 'GUIDO')
[{"name": "Pythonistas"}]