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A 30-second query is almost always a code problem. Fix missing indexes, N+1 queries, and bad joins with EXPLAIN ANALYZE before scaling hardware.
Many database (DB) queries rely on indexing, sorting, and temporary storage during query execution. These elements need to be well-aligned to ensure queries return results quickly...
Picture a business-critical SQL query crawling for seven hours. Nearly a full workday. The system keeps grinding through data, the business keeps losing time and money, and users a...
I’m exploring ways to improve the performance of a Magento store while maintaining its existing functionality. Slow page loading can affect user experience, especially on product a...
Database optimizers don’t see the future. They make decisions based on statistics, estimates, and cost models — and most of the time, those decisions work remarkably well. But what...
Benchmarking the impact of fewer, larger files across three SQL workloads The post I Compacted 1,000 Apache Iceberg Files Into 6. Here’s What Happened to Query Performance. appeare...
A Laravel application can feel instant on a developer laptop and painfully slow after a few months in production. The framework is rarely the real problem. More often, the database...
In this post, we show you how to tune Babelfish performance through monitoring, query optimization, parameter tuning, and ongoing maintenance.
Run this on a typical laptop and both systems will report latencies in the low single-digit to tens of milliseconds range, with the exact numbers depending heavily on your CPU, ava...
Operational databases like Postgres are built to reliably execute highly concurrent...
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Most developers I've worked with write SQL every day. Very few of them are DBAs. According to the 2024 Stack Overflow Developer Survey — 65,000 developers across 185 countries — da...
Modern database environments rarely run a single type of workload. Most production systems handle both transactional operations and analytical queries simultaneously. These mixed w...
Тест упал на пятом часу, на переходе с 16 800 до 21 000 ВРМ. Потом запрос, который выполнялся меньше секунды, вдруг стал занимать десятки секунд. После этого отчёт вместо 5 секунд...
QuestDB is well-suited for applications necessitating high-performance ingestion and SQL access to time-oriented data. It is especially useful in financial markets, real-time analy...
You’re testing a query, and you’re just not getting the same performance between the development and production servers. There’s a huge list of common things that might be causing...
Almost every slow Polars script lacks in terms of one of these two: its expression engine written and executing in Rust across every core at its disposal, and its query optimizer t...
<p class="wp-block-paragraph">Your semantic search was instant at ten thousand rows. At two million it&#8217;s 800 milliseconds and climbing, and you never</...
As user demand surges, digital platforms must modernize backend systems to avoid performance bottlenecks. This transformation protects uninterrupted uptime for enterprise customers...
Why is my SQL query slow? Watch EXPLAIN ANALYZE turn a million-row scan into ten block reads with one index, and count an N+1 loop in the act.
Мы провели больше 100 запусков альтернативного теста 1С:ERP от «ИТ-Экспертизы» и дошли до APDEX = 0,986 на 30 000 виртуальных пользователей. Путь был непростым. На 15 000 ВРМ APDEX...
After a major or minor version upgrade on Amazon Aurora MySQL or Amazon RDS for MySQL, some queries regress because the optimizer's cost models, defaults, and execution strategies...
AbstractIFCO runs one of the world's largest reusable packaging pools with hundreds of millions of crates and pallets...
In many analytics platforms, there are performance issues that do not always come from complex transformations. Sometimes the bottleneck is much simpler: the same large datasets ar...
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