Know which ClickHouse columns can answer your question
Inspect a table's columns and types before turning an Affinity analytics question into a query.
Trigger
Webhook received
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
Action
Get Table Schema
Gets the schema and column details for a table.
Why this helps
Writing a query without knowing the table structure leads to avoidable trial and error.
- Check available columns before constructing a query.
- Reduce errors from assumed field names or types.
- Make analytics requests easier to scope.
Setup
Build it in a few focused steps.
- 1Connect Affinity and ClickHouse once in the Notis portal.
- 2Create an automation that identifies the table relevant to the request and retrieves its schema.
- 3Choose a webhook trigger and a channel for run reports.
- 4Test with one real question and a known ClickHouse table.
Questions about this workflow
Does this action query the table data?
No. It retrieves schema information for a specific table and can optionally include sample data, depending on the action configuration.
What must the webhook request include?
Include enough context to identify the relevant database and table, or ask the automation to first discover a candidate from available information.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Affinity to ClickHouse. A trigger fires from one place; an action lands in another.
Affinity 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.
Affinity and ClickHouse, or any other combination from 1,000+ integrations.
When this happens · Trigger
Do this · Action
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