See the reporting impact of a changed meeting time
When an event's fields change, have Notis query your stored schedule data for the impact you care about.
Trigger
Event Updated
Triggers when an existing Google Calendar event is modified. Returns the event ID, change type, and the specific fields that changed with their previous and new values.
Action
Execute ClickHouse Query
Execute a sql query in clickhouse and return the results. this is the primary action for querying data from clickhouse databases.
Why this helps
A moved meeting can affect workload and availability, but the wider schedule impact is not obvious from the edit alone.
- Use previous and new changed values as investigation context.
- Query stored calendar data for a broader impact view.
- Keep the result with the event update report.
Setup
Build it in a few focused steps.
- 1Connect Google Calendar and ClickHouse once in the Notis portal.
- 2Create an automation in Automations, New Automation, or tell Notis from any channel.
- 3In one instruction, describe the ClickHouse query and impact summary you want, and provide your stored dataset context.
- 4Pick Event Updated as the trigger and choose where run reports should go.
- 5Test with one real time change and review the query result.
Questions about this workflow
Can this calculate availability from Google Calendar automatically?
The ClickHouse action queries your stored data. Availability needs to be represented in that dataset or calculated using a query and rules you provide.
Will it know the old and new time?
The Event Updated trigger returns the specific changed fields with previous and new values.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Google Calendar to ClickHouse. A trigger fires from one place; an action lands in another.
Google Calendar 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.
Attendee Response Changed
Polling trigger that fires when any attendee's RSVP changes to accepted, declined, or tentative. Returns attendee info and current status.
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.
Event Canceled or Deleted
Triggers when a Google Calendar event is cancelled or deleted. Returns minimal data: event_id, summary (if available), and cancellation timestamp.
List ClickHouse Databases
List all databases in the clickhouse instance. useful for discovering available databases before querying tables.
Event Starting Soon
Triggers when a calendar event is within a configured number of minutes from starting. Returns event details, time remaining, attendees, and join links when available.
List ClickHouse Tables
List tables in clickhouse databases. returns information about tables including their engine, size, and row count.
Calendar Event Changes
**SOON TO BE DEPRECATED** - Use Calendar Event Sync (polling trigger) instead. Real-time webhook trigger for calendar event changes. Returns event metadata only. For full event data, use Calendar Event Sync (polling trigger).
Event Created
Polling trigger that fires when a new calendar event is created. Returns event ID, summary, start/end times, and organizer info.
Calendar Event Sync
Polling trigger that returns full event data including details, attendees, and metadata. For real-time notifications with basic info, use Calendar Event Changes (webhook).
Connect any two apps with Notis in the middle.
Google Calendar and ClickHouse, or any other combination from 1,000+ integrations.
When this happens · Trigger
Do this · Action
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