Add ClickHouse event forwarding integration page

[colmsnowplow]

Document the ClickHouse forwarding destination: prerequisites, creating the destination table, configuration, validation, delivery/deduplication semantics, identity, and a schema reference for the default field mapping.

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AI reviews

Claude will automatically review this PR against the docs style guide.

If you have questions or want it to look again at something specific, tag @claude in a comment.

[claude]

Documentation style review

Overall this is a well-structured, cleanly written page. Frontmatter is complete, internal links correctly end in /index.md, terminology (Console, Collector, entity) is used correctly, the page stays within the 5 H2 limit, and both external ClickHouse links (interfaces/http, replacingmergetree) return HTTP 200. A few minor points:

1. Bold used on non-UI list terms (clickhouse/index.md, Prerequisites list)

• Endpoint host: your ClickHouse Cloud HTTPS endpoint...
• Database: the database containing your destination table.
• Table: the table to insert events into...
• Username and Password: a ClickHouse user with...

CLAUDE.md states: "Use bold only for UI elements (buttons, page titles)." These are definition-list labels, not UI elements. (Note the later **Connect**, **ClickHouse** bolds are correct — those are UI.) Consider using code/plain text for the term labels, or confirm they map to literal Console field labels.

2. Mild marketing descriptor (intro + description)

store behavioral data in a fast, column-oriented database

The style guide bans marketing language and product-praise adjectives. "fast" describes the product; consider dropping it (e.g. store behavioral data in a column-oriented database for real-time analytics).

3. Ellipsis in inline code (Delivery and deduplication)

SELECT ... FROM snowplow_events GROUP BY event_id

The style guide says "Never use ellipses (...)." This is inside SQL code representing omitted columns so it is borderline, but to be safe you could name the columns or use a concrete example.

None of these are blocking.

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Status	Name	Latest Commit	Preview URL	Updated (UTC)
✅ Deployment successful! View logs	documentation	ea5d0c1	Commit Preview URL Branch Preview URL	Jul 08 2026, 09:34 AM