Validate ClickHouse tables after planning changes
Catch schema mismatches before an updated plan reaches execution.
Trigger
Specific Coda Page Updated Trigger
Triggers when a specific page within a Coda document is updated.
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 changed requirement can quietly outgrow the table structure your team expects.
- Surface missing columns early
- Support safer query planning
- Keep technical context current
Setup
Build it in a few focused steps.
- 1Connect Coda and ClickHouse once in Notis.
- 2Create the automation and describe which table details to verify.
- 3Pick Specific Coda Page Updated as the trigger.
- 4Choose a report channel and test with one updated page.
Questions about this workflow
Does this alter the schema?
No. Get Table Schema is a read-only inspection action.
What should the page contain?
Include the table name or enough context for Notis to identify it.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Coda to ClickHouse. A trigger fires from one place; an action lands in another.
Coda 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.
Coda Document Deleted Trigger
Triggers when a Coda document is deleted.
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 Coda Document Trigger
Triggers when a new Coda document is created.
List ClickHouse Databases
List all databases in the clickhouse instance. useful for discovering available databases before querying tables.
New Coda Page Trigger
Triggers when a new page is added to a Coda document.
List ClickHouse Tables
List tables in clickhouse databases. returns information about tables including their engine, size, and row count.
Specific Coda Page Updated Trigger
Triggers when a specific page within a Coda document is updated.
Connect any two apps with Notis in the middle.
Coda and ClickHouse, or any other combination from 1,000+ integrations.
When this happens · Trigger
Do this · Action
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