Hello! This needs a test file before we can continue, look at the contribution page.

Thanks for updating the _mapping file etc., but please do add an example file as well under /examplefiles.

Thanks for the updates! Before we do burn down a forest here running CI, can you make sure to run the checks locally? Is there anything preventing you from using tox? I need to manually approve the CI run, and it's fairly simple stuff to fix that can be all checked locally.

I can use tox but I am a bit new to this, I hadn't used it before.

pip install tox (in the virtual environment you use for development) and then tox, tox -e check, and possibly tox -e mapfiles (to regenerate them)

prql.py is missing the correct copyright info. It has to be 2006-2023, not just 2023.

@Anteru I've updated the copyright into.

Merged, thanks!