ClickHouse GraphQL pagination example

What does this MR do and why?

1. Ensure you have dev fixtures.
2. Ensure you have ClickHouse set up: https://docs.gitlab.com/integration/clickhouse/
3. Ensure CH integration is enabled: https://docs.gitlab.com/administration/analytics/
4. Manually run: ClickHouse::EventsSyncWorker.new.perform in console

Example query:

query test {
	clickhouseEvents(first: 5) {
    nodes {
      id
      createdAt
      path
    }
    pageInfo {
      startCursor
      endCursor
      hasNextPage
      hasPreviousPage      
    }
  }
}

References

Screenshots or screen recordings

Before	After

How to set up and validate locally

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