A guide on how to migrate your tinybird datasource

What to do when you want to add/remove/update a column in your datasource.

The _migration folder includes:

• ping_response__v4.datasource which represents the VERSION 4 of our datasource
• ping_response.datasource which has the upgraded schema and a new VERSION 5
• tb_backfill_populate.pipe will fill the datasource with all the data until a given timestamp
• tb_materialized_until_change_ingest.pipe will fill the data from a given timestamp

tb push _migration/ping_response.datasource
tb push _migration/tb_materialized_until_change_ingest.pipe
# after the given ts, it is time to run the backfill populate
tb push _migration/tb_backfill_populate.pipe --populate --wait
# after populate ends, it is time to remove the pipe
tb pipe rm tb_backfill_populate  --yes

Check if all the rows have been migrated:

tb pipe _migration/tb_datasource_union.pipe
# after checking the result of the pipe
tb pipe rm tb_datasource_union.pipe --yes

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Link to the issue from Gonzalo as reference.

python3 -m venv .venv
source .venv/bin/activate
pip install tinybird-cli
tb auth -i

tb pull
tb push aggregate_*.pipe --populate
tb push endpoint_*.pipe
...