Keep Your ClickHouse Table Inventory Handy
Get a recurring inventory of tables in a chosen database, with available details that help you decide where to investigate.
Trigger
Recurring schedule
Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.
Action
List ClickHouse Tables
List tables in clickhouse databases. returns information about tables including their engine, size, and row count.
Why this helps
A stale mental map of tables makes it harder to find the right place for compliance and audit data.
- List tables in a chosen ClickHouse database.
- Review available engine, size, and row count details.
- Make it easier to spot which tables merit a closer look.
Setup
Build it in a few focused steps.
- 1Connect 21risk and ClickHouse once in the Notis portal.
- 2Create an automation named Scheduled Table Inventory, from any channel or in Automations, New Automation.
- 3Tell Notis which database to inspect and ask it to summarize the listed tables and their available details.
- 4Choose the notis_cron trigger and where run reports should go.
- 5Test with one real database and confirm the inventory is understandable.
Questions about this workflow
Does this list every database too?
No. This action lists tables in a database, so specify which database to inspect.
Are size and row count guaranteed for every table?
The action returns these details when available. The report should reflect the information ClickHouse provides.
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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