Learner
The eight modules of the BigQuery to ClickHouse workshop, from pre-work through your real migration.
Work through these in order. Every module is a guided walkthrough with real DDL and real measurements -- none of them are scored, so the pace is the same whether you are working alone or in a room.
Nothing is installed on your machine. Every command runs in the ClickHouse Cloud SQL console.
00 Setup
Pre-work: account and service, nothing else to install.
01 Why is this slow?
One question, two answers.
02 Query it in place
Read the bucket directly. No ingestion yet.
03 The lazy migration
Copy the BigQuery schema across unchanged. It works.
04 Shrinking the table
Five concrete changes, measured one at a time.
05 The sort key
Same answer, fewer rows read.
06 The impossible dashboard
A funnel no sort key can rescue.
07 Ask your data a question
An agent over the schema you designed.
08 Your real migration
Why migrate at all, production differences, coexistence, what to do next.
Troubleshooting
When a count looks wrong or a view comes back empty.