8h ago · 2 min read · PostgreSQL diagnostics and the patterns you need before you're staring at production slow queries. psql meta-commands — faster than any GUI \l -- list databases \c mydb -- connect to database \dt -- list tabl...
Join discussion11h ago · 4 min read · PostgreSQL major version upgrades are among the most stressful operations a DBA performs. pg_upgrade has made them dramatically safer -- it handles catalog migration, data file linking, and sequence synchronization. But it has a blind spot with exten...
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11h ago · 14 min read · 15 PostgreSQL Extensions You Should Know in 2026 PostgreSQL's extension system is the single feature that separates it from every other database. It lets you add vector search, time-series, geospatial, and machine learning capabilities without leavin...
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11h ago · 4 min read · The Silent Data Bug: Stale Continuous Aggregates in TimescaleDB There is a class of bug that is worse than a crash: one where everything appears to work perfectly while quietly returning wrong answers. That is exactly what a stale continuous aggregat...
Join discussion22h ago · 14 min read · Why the database layer matters In a semantic search system, the database schema isn’t just storage. It defines how embeddings are stored, indexed, and queried. Many tutorials treat the database as a d
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18h ago · 11 min read · Backend systems revolve around data. User accounts, payments, orders, logs, analytics, permissions — almost everything a backend service does eventually becomes data stored somewhere. Because of that,
Join discussion23h ago · 10 min read · I've wasted so many hours on this exact decision. You get an idea, you're hyped, you sit down to build and then spend the next three hours reading comparison articles from 2021. Zero code written. So
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1d ago · 5 min read · PostGIS SRIDs Explained: Why Your Spatial Queries Return Wrong Results Here is a question that surfaces on every spatial database project eventually: "Why does ST_Distance return 3.4 instead of 340,000?" The answer is almost always the SRID. An SRID ...
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1d ago · 4 min read · Stop Using DELETE for Time-Series Cleanup: TimescaleDB Retention Policies If you are running DELETE FROM metrics WHERE timestamp < now() - INTERVAL '30 days' on a cron job, you are doing it the hard way. That single statement on a 500 GB table create...
Join discussion1d ago · 14 min read · PostgreSQL vs MySQL vs SQLite: A Developer's Honest Guide to Choosing the Right Database Every project starts with the same question. Do I need a full database server, or is SQLite enough? The answer depends on exactly three things: how many users wr...
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