## Problem
The ClickHouse destination guide leaves parts of resource setup unclear.
The pipeline form suggests the `default` ClickHouse user and database
even when a dedicated user and database are prepared.
## Solution
- Clarify the ClickHouse setup path, connection details, engine choice,
and query example in the guide.
- Align the pipeline form's labels, examples, and help text with that
setup path.
- Include **Start pipeline** in the BigQuery guide before the cost
confirmation and **Create and start pipeline**.
## Review instructions
1. Open **Database → Pipelines**, add a pipeline, and choose
**ClickHouse**. Check the endpoint label, user and database examples,
and table engine help.
2. Read the [ClickHouse destination
guide](https://supabase.com/docs/guides/database/replication/pipelines/clickhouse),
especially **Prepare ClickHouse resources** and **Configure ClickHouse
as a destination**.
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## Summary by CodeRabbit
* **Documentation**
* Updated the BigQuery guide to explain the pipeline validation, cost
review, and start steps.
* Expanded the ClickHouse guide with destination setup requirements,
engine behavior, and querying guidance for current-state views and
append-only history.
* **User Experience**
* Clarified ClickHouse connection field labels and descriptions,
password visibility controls, and table-engine options in the setup
form.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
Danny White