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Clarify method of listening for postgres changes in trigger node and required database permissions for Postgres triggers #3823

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Clarify method of listening for postgres changes in trigger node and required database permissions for Postgres triggers #3823

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Clarify method of listening for postgres changes and required databas…
bfritton Oct 29, 2025
dcee39c
Fixed spelling / reworded note on n8n PostgreSQL trigger events
bfritton Oct 29, 2025
c30ea20
spelling correction
bfritton Oct 29, 2025
1f6edea
Merge branch 'main' into patch-1
bfritton Nov 12, 2025
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7 changes: 7 additions & 0 deletions docs/integrations/builtin/trigger-nodes/n8n-nodes-base.postgrestrigger.md
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Expand Up @@ -27,6 +27,13 @@ You can configure how the node listens for events.
* Delete
* Select **Listen to Channel**, then enter a channel name that the node should monitor.

**Note on how n8n listens for Postgres events and database permissions required**:
* To listen for trigger events, n8n automatically creates a Postgres trigger on the target table to monitor for the event. This trigger on the table is added when your workflow is activated and removed when it is deactivated.
* If your workflow is not active, it is added any time you test your workflow by listening for a test event, and automatically deleted again when the test event listening stops.
* The Postgress trigger calls an automatically-created procedure to tell n8n about the event.
* The user in your Postgres credential must have permissions to create and execute triggers and procedures. In PostgreSQL, only superusers or the table owner (or those with TRIGGER privilege) can create triggers on that table. The user must also have CREATE privilege on the schema where the procedure will reside.


## Related resources

n8n provides an app node for Postgres. You can find the node docs [here](/integrations/builtin/app-nodes/n8n-nodes-base.postgres/index.md).
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