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Tag: trigger

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Here you can find all blog posts about the Tag: trigger. You can go back to all blog posts or take a look into our other categories & tags.

Broken foreign keys: how can that happen in PostgreSQL?

by Laurenz Albe | 12.2023
One of the fundamental requirements for a relational database is that the transaction system always maintains consistency. That means that […]

Using multiple triggers on the same table in PostgreSQL

by Hans-Jürgen Schönig | 11.2023
What happens if you deploy many triggers on the very same PostgreSQL table? What order do the multiple triggers fire in?

Why are my PostgreSQL updates getting slower?

by Laurenz Albe | 10.2022
  Recently, a customer asked me why a bulk load into a PostgreSQL table kept slowing down as time went […]

Automatic partition creation in PostgreSQL

by Laurenz Albe | 02.2022
  Table partitioning is one of the best-liked features out of the more recent PostgreSQL developments. However, there is no […]

What to return from a PostgreSQL row level trigger?

by Laurenz Albe | 04.2021
  In this article, I'll talk about row level triggers, which are the most frequently used kind of triggers. I […]

PostgreSQL: How to write a trigger

by Hans-Jürgen Schönig | 02.2021
UPDATED 2023: A trigger is a way to automatically respond to events. This is a tutorial on how to manage and program triggers in PostgreSQL.

Performance differences between normal and generic audit triggers

by CYBERTEC Guest | 04.2020
Performance differences between normal and generic audit triggers | PostgreSQL database | PostgreSQL trigger performance

Triggers to enforce constraints in PostgreSQL

by Laurenz Albe | 04.2019
  Sometimes you want to enforce a condition on a table that cannot be implemented by a constraint. In such […]

Rules or triggers to log bulk updates?

by Laurenz Albe | 07.2018
  Inspired by my co-worker's recent blog post, I decided to revisit the old question of rules vs. triggers and […]

More on Postgres trigger performance

by CYBERTEC Guest | 06.2018
A performance test on more complex Postgres trigger usage scenarios, together with some extra info on trigger capabilities.
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