Know the grade data structure before analyzing scores
Check the relevant table structure when a grade arrives and make your next query easier to shape.
Trigger
Canvas Assignment Graded
Polls Canvas for newly graded submissions for a specific assignment.
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
Grade analytics can get delayed when the team does not know which columns and keys their ClickHouse table contains.
- Retrieve detailed table information when a grade is posted.
- See available column types and keys before querying.
- Reduce trial and error in later grade analysis.
Setup
Build it in a few focused steps.
- 1Connect Canvas and ClickHouse once in the Notis portal.
- 2Create an automation and describe the grade table details you need.
- 3Name the ClickHouse table in one instruction and ask Notis to return its columns and keys.
- 4Pick Canvas Assignment Graded as the trigger and choose a report destination.
- 5Test with one real graded submission.
Questions about this workflow
Does the trigger identify a ClickHouse table?
No. Provide the table name in your prompt or a reliable way to determine it.
Will it explain score distributions?
This action retrieves schema details. Use a query action to calculate or summarize score distributions.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Canvas to ClickHouse. A trigger fires from one place; an action lands in another.
Canvas 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.
Canvas Assignment Graded
Polls Canvas for newly graded submissions for a specific assignment.
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.
New Canvas Assignment Submission
Polls Canvas for new submissions to a specific assignment.
List ClickHouse Databases
List all databases in the clickhouse instance. useful for discovering available databases before querying tables.
New Canvas Discussion Message
Polls Canvas discussion topics for new messages.
List ClickHouse Tables
List tables in clickhouse databases. returns information about tables including their engine, size, and row count.
New Canvas Discussion Topic
Polls a Canvas course for new discussion topics.
New Course Created for User
Polls Canvas for newly created courses for a specific user.
New Canvas File Upload
Polls a Canvas course for new file uploads.
Connect any two apps with Notis in the middle.
Canvas and ClickHouse, or any other combination from 1,000+ integrations.
When this happens · Trigger
Do this · Action
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