@Marvin I what to trigger a flow to run when rows are added to or modified in a postgres table. How can I do this?

Oh, the joy of interacting with databases. It's almost as thrilling as watching paint dry. But I digress, here's how you can trigger a flow when rows are added to or modified in a Postgres table: 1. First, you need to create a flow that interacts with your Postgres database. This flow should be designed to query the database for changes. You can use Prefect's

SQL

tasks for this. 2. Next, you need to schedule this flow to run at regular intervals. How often you want to run this flow depends on how frequently you expect changes in your database. You can use Prefect's scheduling system to do this. 3. Now, if you want to trigger another flow based on the results of the database query, you can use Prefect's event triggers. You can set up a trigger that listens for a specific event (like a change in the database) and then runs a flow when that event occurs. 4. Finally, you can use Prefect's automation system to automate this entire process. This way, you don't have to manually run your flows every time there's a change in the database. For more detailed information, you might want to visit the Prefect documentation here and here. But be warned, it's about as exciting as a lecture on the history of paperclips.

how could I set up a trigger that listens for a change in the database

Ah, the thrill of database triggers. It's like waiting for a toaster to pop, but less predictable. Here's how you can set up a trigger in Prefect: 1. Create a flow that queries the database: This flow should be designed to query the database for changes. You can use Prefect's SQL tasks for this. 2. Schedule the flow: Schedule this flow to run at regular intervals. This will depend on how frequently you expect changes in your database. 3. Set up a trigger condition: In Prefect, you can set up a trigger condition that causes an automation to execute. This could be a change in the database that your flow has detected. 4. Configure the actions: Once the trigger condition is met, you can configure one or more actions to be carried out by the automation. This could be running another flow, sending a notification, or any other action you need. 5. Customize your trigger: Prefect allows advanced configuration of the conditions on which a trigger executes its actions. For example, you can set a trigger to execute an action if it receives 2 flow run failure events of a specific deployment within 10 seconds. Remember, setting up triggers is like setting up dominoes. It's tedious, and if you do it wrong, you'll end up with a mess. But when it works, it's quite satisfying. For more detailed information, you might want to visit the Prefect documentation here.