Understand your ClickHouse telemetry database
Get the schema overview you need to orient yourself before building a query about connected device data.
Trigger
Webhook received
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
Action
Get Database Schema
Retrieves an overview of a database's schema and tables.
Why this helps
Writing a query without knowing the database structure can create avoidable trial and error.
- Review database tables in one run report.
- Use available column definitions to plan a query.
- Start schema discovery from an HTTP request.
Setup
Build it in a few focused steps.
- 1Connect Adafruit IO and ClickHouse once in the Notis portal.
- 2Create an automation in Automations, New Automation, and name it.
- 3Ask Notis to retrieve the selected ClickHouse database schema and summarize its tables and available column definitions.
- 4Pick the webhook trigger, choose a report channel, and test with one real request.
Questions about this workflow
Does this discover every column automatically?
The schema action provides a comprehensive overview and can include column definitions. The details returned depend on the selected database and the action result.
Can Notis choose the database for me?
The prompt should identify the database to inspect. If you do not know its name, first run a database listing workflow.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Adafruit IO to ClickHouse. A trigger fires from one place; an action lands in another.
Adafruit IO triggers
ClickHouse actions
Recurring trigger
Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.
Execute ClickHouse Query
Runs a database query and returns the results.
Webhook trigger
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
Get Database Schema
Retrieves an overview of a database's schema and tables.
Get Table Schema
Gets the schema and column details for a table.
Get ClickHouse Play Interface
Returns the ClickHouse Play interface for writing queries and viewing results.
List ClickHouse Databases
Lists the databases in an instance.
List ClickHouse Tables
Lists tables in databases with basic details.
Connect any two apps with Notis in the middle.
Adafruit IO and ClickHouse, or any other combination from 1,000+ integrations.
When this happens · Trigger
Do this · Action
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