https://neatguycoding.com/categories/troubleshooting/Recent content in Troubleshooting on Neat Guy CodingHugo -- gohugo.ioen© 2026 NeatGuyCodingThu, 24 Feb 2022 00:00:00 +0000https://neatguycoding.com/posts/sql-index/Thu, 24 Feb 2022 00:00:00 +0000https://neatguycoding.com/posts/sql-index/A deep dive into MySQL’s InnoDB optimizer statistics and how sampling inaccuracies can lead to poor index selection, causing dramatic performance differences between similar queries. Learn practical solutions to prevent slow SQL queries caused by optimizer misjudgments.https://neatguycoding.com/posts/big-table-index-invalid/Sat, 07 Aug 2021 00:00:00 +0000https://neatguycoding.com/posts/big-table-index-invalid/When our operations team brought us a complex SQL query that was taking forever to execute, we thought it was just a performance issue. Little did we know, this investigation would uncover a deeply hidden character encoding mismatch that had been silently causing full table scans in our production database.