Recheck an open Slack data question
When a question returns to the team's attention, refresh the data and share an updated answer.
Trigger
Message Reaction Removed
Triggered when a reaction is removed from a message in Slack. Supports optional filtering by channel and emoji name.
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
An older data answer may no longer fit the decision at hand, but checking it again can slip off the list.
- Provides a simple way to signal that an older question needs a fresh check.
- Keeps refreshed results alongside the existing context.
- Reduces the chance a decision relies on stale figures.
Setup
Build it in a few focused steps.
- 1Connect Slack and ClickHouse to Notis once through the portal.
- 2Create the automation in the portal, or explain it to Notis in a conversational channel.
- 3Give Notis one instruction to refresh a clear data question in the message when its designated follow-up reaction is removed, then post updated findings in the thread.
- 4Choose Message Reaction Removed as the trigger and select a channel for run reports.
- 5Test with a real open data question and confirm reaction removal produces a fresh query.
Questions about this workflow
Why use reaction removal for a refresh?
A team can use removal of a designated reaction as its chosen signal that a question needs another look. Keep that convention clear to avoid accidental reruns.
Can it compare old and new results?
Ask Notis to compare with a prior answer only when the old value and its timeframe are available in the conversation.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Slack to ClickHouse. A trigger fires from one place; an action lands in another.
Slack 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.
New Channel Created Trigger
Triggered when a new channel is created in Slack.
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.
Channel Message Received
Triggered when a message is posted in a Slack channel (public, private, or multi-party IM). Does NOT match direct messages.
List ClickHouse Databases
List all databases in the clickhouse instance. useful for discovering available databases before querying tables.
Direct Message Received
Triggered when a new direct message (DM) is sent to a user in Slack. Catches all DMs across all DM channels.
List ClickHouse Tables
List tables in clickhouse databases. returns information about tables including their engine, size, and row count.
Message Reaction Added
Triggered when a reaction is added to a message in Slack. Supports optional filtering by channel and emoji name.
Message Reaction Removed
Triggered when a reaction is removed from a message in Slack. Supports optional filtering by channel and emoji name.
Reaction Added Trigger
DEPRECATED: use `SLACK_MESSAGE_REACTION_ADDED` instead. Triggered when a reaction is added to a message in Slack.
Connect any two apps with Notis in the middle.
Slack and ClickHouse, or any other combination from 1,000+ integrations.
When this happens · Trigger
Do this · Action
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