Validate a ClickHouse table before using it in a deck
Confirm the table still matches your chart or analysis before you publish the slide.
Trigger
Webhook received
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
Action
Get Table Schema
Get detailed schema information for a specific table including column definitions, types, keys, and optionally sample data. this is essential for ai agents to understand table structure before constructing queries.
Why this helps
A familiar table name can conceal changed columns, types, or keys.
- Catch schema changes early
- Reduce failed query iterations
- Give collaborators concrete table details
Setup
Build it in a few focused steps.
- 1Connect Google Slides and ClickHouse in Notis once.
- 2Create an automation named deck table validator.
- 3Tell Notis to accept a table reference from a webhook and return the detailed ClickHouse schema needed for the slide.
- 4Choose a Notis webhook trigger and a report channel.
- 5Test with one table used by an upcoming slide.
Questions about this workflow
Can it include sample rows?
Yes, request sample data when supported and appropriate for the table.
Does it modify the table?
No. It only retrieves schema information.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Google Slides to ClickHouse. A trigger fires from one place; an action lands in another.
Google Slides triggers
ClickHouse actions
Recurring trigger
Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.
Execute ClickHouse Query
Execute a sql query in clickhouse and return the results. this is the primary action for querying data from clickhouse databases.
Webhook trigger
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
Get Database Schema
Get comprehensive schema overview of an entire database including all tables and optionally their column definitions. essential for ai agents to understand the complete database structure in a single call.
New Slide Added
Fires when a new slide is added to a Google Slides presentation.
Get Table Schema
Get detailed schema information for a specific table including column definitions, types, keys, and optionally sample data. this is essential for ai agents to understand table structure before constructing queries.
List ClickHouse Databases
List all databases in the clickhouse instance. useful for discovering available databases before querying tables.
List ClickHouse Tables
List tables in clickhouse databases. returns information about tables including their engine, size, and row count.
Connect any two apps with Notis in the middle.
Google Slides and ClickHouse, or any other combination from 1,000+ integrations.
When this happens · Trigger
Do this · Action
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