Keep a Clear View of a Key Data Table
Have Notis retrieve the structure of a chosen table on a schedule, so its columns and types are easy to review when planning data work.
Trigger
Recurring schedule
Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.
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
When table details are buried or forgotten, even a familiar query can start with avoidable schema lookups.
- Retrieve detailed schema information for a specified table.
- Review column definitions, types, and keys in one report.
- Optionally include sample data to make the table easier to understand.
Setup
Build it in a few focused steps.
- 1Connect 21risk and ClickHouse once in the Notis portal.
- 2Create an automation named Scheduled Table Schema Check, from any channel or in Automations, New Automation.
- 3Tell Notis which database and table to inspect and whether to include sample data in the schema report.
- 4Choose the notis_cron trigger and where run reports should go.
- 5Test with one real table and verify the returned structure is the one you expected.
Questions about this workflow
Do I need to name the table?
Yes. The instruction should identify the database and table whose schema Notis should retrieve.
Does this check whether records comply with a policy?
No. It returns table structure and optional sample data. Compliance evaluation requires a separate query and clear criteria.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link 21risk to ClickHouse. A trigger fires from one place; an action lands in another.
21risk 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.
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.
21risk and ClickHouse, or any other combination from 1,000+ integrations.
When this happens · Trigger
Do this · Action
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