SQLite WAL Debug, pgstream v1.1.0, & Postgres Scaling Retrospective
SQLite WAL Debug, pgstream v1.1.0, & Postgres Scaling Retrospective Today's Highlights This week's database highlights include a deep dive into SQ…
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Discovering PII Inside InterSystems IRIS
Data privacy regulations such as GDPR, LGPD, and HIPAA demand that organizations know exactly where Personally Identifiable Information (PII) lives in…
Building a Natural Language Query Interface for Your Database: A Developer's Blueprint
Every product team eventually hits the same wall. Marketing wants to know which signups came from last week's campaign. Support wants a list of custom…
PostgreSQL HA Risks, Replication Internals, & Rapid Branching
PostgreSQL HA Risks, Replication Internals, & Rapid Branching Today's Highlights Today's highlights include critical insights into Patroni's repli…
The Deep Mechanics of Online Bulk Deletion in PostgreSQL
MVCC, WAL, vacuum, and replication slots under sustained delete load - and how to delete billions of rows without your database noticing Most "how to …
Three PostgreSQL Master/Replica Discovery Problems — and How to Solve Them
When an application starts using multiple PostgreSQL hosts, the headaches begin: you need to dynamically find the master after a failover, pick a repl…
PostgreSQL 22P01 Error: Causes and Solutions Complete Guide
PostgreSQL Error 22P01: Floating Point Exception PostgreSQL error code 22P01 is raised when a floating-point operation produces an exceptional result …
Building My First End-to-End ETL Pipeline with Airflow, BigQuery, and Docker
Recently, I completed my first full Data Engineering project: building an end-to-end ETL pipeline using real-world Australian weather data spanning 10…
SELECT FINAL and OPTIMIZE FINAL Are Not the Same Thing
One thing that confused me when I first started learning ClickHouse was the word FINAL . Because eventually you'll come across both: SELECT * FROM eve…
DuckDB Data Inlining, SQLite Fossildelta OOB, Postgres 19 Temporal Data
DuckDB Data Inlining, SQLite Fossildelta OOB, Postgres 19 Temporal Data Today's Highlights Today's highlights include DuckDB's innovative data inlinin…
When Kubernetes Isn't the Problem: Debugging External Dependencies in AKS
Introduction One of the most common mistakes during incident response is assuming Kubernetes is the problem simply because the application runs on Kub…
Designing an Expiring-Points System on an RDBMS (with Benchmarks)
This is an English rewrite of an article I originally published in Japanese. I've run the design on PostgreSQL 17 in Docker and folded the measured nu…
Stop Hiding SQL Behind Your ORM: jOOQ, JPA, and JDBC Under Production Load
Most persistence debates in Java are framed incorrectly. The question is not: Should we use JPA, jOOQ, or JDBC? The real question is: Is this part of …
PostgreSQL 2200G Error: Causes and Solutions Complete Guide
PostgreSQL Error 2200G: Most Specific Type Mismatch PostgreSQL error code 2200G ( most_specific_type_mismatch ) is a SQL-standard data exception that …
SQLite `ON CONFLICT DO SELECT` Proposal, PostgreSQL 19 Features & SQLite Critical Bug
SQLite ON CONFLICT DO SELECT Proposal, PostgreSQL 19 Features & SQLite Critical Bug Today's Highlights This week in databases, a proposal seeks to…
I built an AI-personalized news bot that runs on a single SQLite file — architecture and everything that broke
I built an AI-personalized news bot that runs on a single SQLite file — architecture and everything that broke TL;DR — @futur_e_news_bot . A bilingual…
SQL Explorer: Run Full SQL on CSV, Parquet & JSONL Files in Your Browser
Query large local files with industry-grade SQL — without uploading anything. Utilora SQL Explorer brings the power of DuckDB directly into your brows…
SQL Formatting Best Practices: A Practical Guide for Engineers
SQL is arguably the most widely used language in software engineering, yet it is often the least carefully written. Most teams enforce strict linting …
QN : Ingest and transform data in a lakehouse
lakehouse has two storage areas ; Files and Tables Files Store structured, queryable data by sql Supports schema definitions and ACID transactions Tab…
DuckLake Spec, pg_background 2.0, and pgsql_tweaks 1.0.3 Enhance Database Ecosystem
DuckLake Spec, pg_background 2.0, and pgsql_tweaks 1.0.3 Enhance Database Ecosystem Today's Highlights This week's highlights include DuckDB's new Duc…
Dynamically Generating SQL Joins for Tables Based on a Common Column
Introduction SQL databases often contain many tables that are related through common columns, such as customer_id or order_id. Writing JOIN clauses ma…
Extended RUM in DocumentDB extension for PostgreSQL: Efficient ESR (Equality, Sort, Range) Queries
Last year, I examined RUM indexes within this series on multi-key indexing, demonstrating that they cannot substitute MongoDB's compound indexes for s…
DuckDB 1.5.3 & Quack Protocol Release; PostgreSQL File Descriptor Tuning
DuckDB 1.5.3 & Quack Protocol Release; PostgreSQL File Descriptor Tuning Today's Highlights This week's database news highlights significant advan…
DuckDB Integrates Lance Lakehouse; SQLite CVE Fix; Postgres 19 Beta on K8s
DuckDB Integrates Lance Lakehouse; SQLite CVE Fix; Postgres 19 Beta on K8s Today's Highlights This week, DuckDB introduces integrated vector and hybri…
I got tired of writing the same history table boilerplate, so I built a Postgres extension
There's this problem I kept running into - first during my internship, then again on a freelance project I picked up afterward. Both of them used Post…
Getting Started with pg_durable: Durable Workflows Inside PostgreSQL
Modern applications demand long‑lasting workflows that can withstand crashes, restarts, and failures, often relying on external platforms. pg_durable …
SQLite Optimizer Deep Dive, Change-Set Internals & Azure PostgreSQL Architecture
SQLite Optimizer Deep Dive, Change-Set Internals & Azure PostgreSQL Architecture Today's Highlights This week, we explore SQLite's query planner o…
How I Cut 769 Database Queries With One Window Function
From Grafana to Real Performance Gains I noticed in the Grafana dashboard that GET /api/v1/dokter/public/jadwal-dokter was on average taking 1 second …
🧠 Mastering pinecone fastapi semantic search tutorial
🚀 Overview — Why Semantic Search Matters Semantic search surpasses simple keyword matching because embeddings place texts in a high‑dimensional vector…
PostgreSQL Connection Pooling Explained: How It Works and Why It Matters
Opening a new database connection for every query is one of the most expensive things your backend can do. Connection pooling is how you stop doing th…