PostgreSQL Internals

Datatbase Systems

How PostgreSQL and MySQL Handle No-Op Updates

How PostgreSQL and MySQL Handle No-Op Updates: A Performance Deep Dive Introduction No-op updates in SQL—where an UPDATE statement sets columns to their existing values—are rare in well-designed applications. Yet legacy code, third-party plugins, or […]
Understanding Locks in PostgreSQL
DBA

UUIDv7 and Time-Based Partitioning in PostgreSQL 18

UUIDv7 and Time-Based Partitioning in PostgreSQL 18: A Complete Guide Introduction: The UUID Evolution That Changes Everything PostgreSQL 18 introduces native support for UUIDv7, a game-changing identifier format that solves one of the database world’s […]
Datatbase Systems

Understanding Foreign Data Wrappers in PostgreSQL

Understanding Foreign Data Wrappers in PostgreSQL: A Complete Guide to postgres_fdw In today’s distributed data landscape, organizations often need to access and integrate data from multiple database systems. PostgreSQL Foreign Data Wrappers (FDWs)provide an elegant […]
Datatbase Systems

Understanding PostgreSQL LATERAL JOINs

Understanding PostgreSQL LATERAL JOINs: A Deep Dive Introduction PostgreSQL’s LATERAL JOIN is a powerful feature that extends the capabilities of standard SQL joins. While traditional joins evaluate all rows independently, LATERAL joins allow subqueries to […]
DBA

Indexing Materialized Views in PostgreSQL

Indexing Materialized Views in PostgreSQL What are Materialized Views? Materialized views in PostgreSQL are precompiled queries that store their results physically on disk, unlike regular views, which are virtual and execute the underlying query each […]