PostgreSQL Archives - The Data Transformation Company

Optimizing Pagination in PostgreSQL 17

Optimizing Pagination in PostgreSQL 17: Why OFFSET/LIMIT Fails and What to Use Instead Pagination with OFFSET/LIMIT in PostgreSQL 17 is a common but often costly pattern, especially in read-heavy applications. While it appears simple to […]

Mitigating LWLock Contention in PostgreSQL

Mitigating LWLock Contention in PostgreSQL: Optimizing Fast-Path Locking, Partition Pruning, and Index Strategy for High-Concurrency Workloads Improving PostgreSQL performance under lock manager contention necessitates a detailed understanding of Lightweight Locks and fast-path locking behavior, followed […]

Deep Dive: High-Throughput Bulk Loading in PostgreSQL

Deep Dive: High-Throughput Bulk Loading in PostgreSQL In high-volume data environments, the standard SQL INSERT statement is an efficiency killer. When ingesting terabytes of data or migrating legacy systems, relying on row-by-row processing creates unacceptable […]

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 Foreign Data Wrappers in PostgreSQL

Understanding Foreign Data Wrappers in PostgreSQL: A Complete Guide to postgres_fdw Introduction 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 […]

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 […]

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 […]

Extracting and Substituting Text with PostgreSQL Regular Expressions

Extracting and Substituting Text with PostgreSQL Regular Expressions PostgreSQL provides a powerful built-in regex engine that enables sophisticated text manipulation through pattern matching, extraction, and substitution operations. Regular expressions are essential for data cleaning, validation, […]

PostgreSQL 18: Accelerating Disk Reads with Asynchronous I/O

PostgreSQL 18 Asynchronous I/O: Accelerating Disk Reads with Asynchronous I/O The database world is about to witness a significant leap forward with PostgreSQL 18, scheduled for release on September 25, 2025. Among the many enhancements […]

Strategic Shift from Oracle to PostgreSQL

Introduction: The Strategic Shift from Oracle to PostgreSQL The “Why”: Drivers of Modernization The enterprise database landscape is undergoing a seismic shift. For decades, Oracle Database has been a cornerstone of corporate data infrastructure, renowned […]