Fix hyperdx_ingest user grants when creating an ingestion user

[execreate]

Summary

ClickHouse ingestion user needs CREATE DATABASE permissions, because on startup collector tries to execute CREATE DATABASE IF NOT EXISTS. Not having CREATE DATABASE permissions will cause the collector to fail on startup.

Checklist

• Delete items not relevant to your PR
• URL changes should add a redirect to the old URL via https://github.com/ClickHouse/clickhouse-docs/blob/main/docusaurus.config.js
• If adding a new integration page, also add an entry to the integrations list here: https://github.com/ClickHouse/clickhouse-docs/blob/main/docs/integrations/index.mdx

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[execreate]

I am not sure what is the correct way to go here:

1. updating docs to have the correct grants
2. or updating the collector logic so that it does not try to execute CREATE DATABASE IF NOT EXISTS

Creating a PR to update the docs is easier, so here we are :) but I'd personally prefer the second option. What do you think? I can submit a PR for the second option later when I have a bit more time.

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Project	Deployment	Preview	Comments	Updated (UTC)
clickhouse-docs	Ready	Preview		Nov 19, 2025 2:48pm

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[gingerwizard]

(1) @execreate for now.

although (2) ill raise with the dev team