Mar 15 · 4 min read · How TimescaleDB Turns XID Wraparound From a Crisis Into a Non-Issue XID wraparound is PostgreSQL's nuclear option. When the 32-bit transaction ID counter approaches its 4.2 billion limit without adequate freezing, PostgreSQL shuts down and refuses ne...
Join discussionMar 14 · 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 discussionMar 13 · 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 discussionMar 12 · 4 min read · The Hidden Cost of TimescaleDB Chunks: Query Planning Time I spent an entire afternoon trying to figure out why a trivial aggregation query was taking 500ms on a well-indexed TimescaleDB hypertable. EXPLAIN ANALYZE showed 2ms of execution. The indexe...
Join discussionMar 11 · 4 min read · Six Things That Will Break Your TimescaleDB Deployment (And the Queries That Catch Them Early) I have been running TimescaleDB in production long enough to know that when it fails, it fails quietly. There are no dramatic crashes. No stack traces. Jus...
Join discussionMar 10 · 5 min read · TimescaleDB Memory Tuning: shared_buffers, work_mem, and Chunk Sizing I frequently encounter TimescaleDB deployments where the team has followed standard PostgreSQL tuning advice -- 25% shared_buffers, bump work_mem a bit, set effective_cache_size --...
Join discussionMar 9 · 4 min read · INSERT Performance Tuning for TimescaleDB I have reviewed dozens of TimescaleDB deployments where the team was investigating hardware upgrades, read replica configurations, or connection pooler tuning -- all to address write throughput problems that ...
Join discussionMar 8 · 5 min read · TimescaleDB Continuous Aggregates: Real-Time vs Materialized-Only Somewhere between the moment you create a continuous aggregate and the moment a user reports "the dashboard numbers look wrong," there is usually a misunderstanding about refresh polic...
Join discussionMar 7 · 4 min read · Monitoring TimescaleDB Compression Health: Detecting Uncompressed Chunks and Policy Gaps There is a category of database failure that never triggers an alert, never returns an error to your application, and never shows up in your logs. Silent policy ...
Join discussionMar 6 · 5 min read · TimescaleDB Compression: A Complete Guide to 95%+ Storage Reduction Most teams discover TimescaleDB compression after their disk usage alert fires for the third time. By that point, they have hundreds of gigabytes of raw time-series data in PostgreSQ...
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