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Category: How To

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Citus: 7 commonly used advanced SQL tools

by Hans-Jürgen Schönig | 09.2023
When you run advanced SQL in Citus, what's possible? Which SQL statements work, and which ones don't? Citus is a […]

Citus: Row store vs. column store in PostgreSQL

by Hans-Jürgen Schönig | 09.2023
Row store vs. column store - a lot has been written about this topic in the context of PostgreSQL and […]

"hired" vs. "fired" - fuzzy search in PostgreSQL

by Hans-Jürgen Schönig | 09.2023
When dealing with data (and life in general) small things can have a major impact. The difference between “hired” and […]

Data locality: Scaling PostgreSQL with Citus intelligently

by Hans-Jürgen Schönig | 09.2023
While sharding is often advertised as “THE solution to PostgreSQL scalability”, it is necessary to keep some technical aspects in […]

Monitoring PostgreSQL replication

by Hans-Jürgen Schönig | 09.2023
PostgreSQL replication is not just a way to scale your database to run ever larger workloads: it's also a way […]

Citus: Sharding your first table

by Hans-Jürgen Schönig | 09.2023
Citus is a capable sharding solution for PostgreSQL. It solves a ton of scalability issues: these can be addressed using […]

Exclusion constraints in PostgreSQL and a tricky problem

by Christoph Berg | 09.2023
Exclusion constraints are a feature that is not very well known, but can be used to implement highly sophisticated constraints. […]

Conditional foreign keys and polymorphism in SQL: 4 Methods

by Laurenz Albe | 08.2023
  This article is about the notoriously difficult problem of “conditional foreign keys”. In object-oriented programming languages, polymorphism is a […]

Indexing "LIKE" in PostgreSQL and Oracle

by Laurenz Albe | 08.2023
© Laurenz Albe 2023 Unless you use the binary collation, creating a b-tree index to support a LIKE condition in […]

Why does my pg_wal keep growing?

by Laurenz Albe | 08.2023
  "Why does my pg_wal keep growing?" That's a question I keep hearing again and again. It is an urgent […]
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