Users typically want to extend ibis in one of two ways:
Add a new expression
Add a new backend
Below we provide notebooks showing how to extend ibis in each of these ways.
Adding a New Expression¶
Make sure you’ve run the following commands before executing the notebook
docker-compose up -d --no-build postgres dns docker-compose run waiter docker-compose run ibis ci/load-data.sh postgres
Here we show how to add a
sha1 method to the PostgreSQL backend as well as
how to add a new
bitwise_and reduction operation:
Adding a New Backend¶
Run test suite for separate Backend¶
By following the steps below, you get the opportunity to run tests with one command: make test BACKEND=’[your added backend]’
you need to add a new backend to BACKENDS variable in Makefile.
if backend needs to start services (implemented as docker containers and added into docker-compose.yml file) then add the services to SERVICES variable in Makefile, add case for switch-case construction inside ./ci/dockerize.sh for proper waiting the services.
if backend needs to load some data then add the backend to LOADS variable in Makefile and implement necessary functionality in ./ci/load-data.sh
the necessary markers for pytest will be generated inside ./ci/backends-markers.sh. By default, a marker will be generated that matches the name of the backend (you can manually correct the generated name for the marker inside the file)