mysql> show schemas; +--------------------+ | Database | +--------------------+ | information_schema | | innodb | | mysql | | performance_schema | +--------------------+ 4 rows in set (0.00 sec)
mysql> drop schema innodb; ERROR 1010 (HY000): Error dropping database (can't rmdir './innodb/', errno: 17)
This is an additional schema that is included in an AWS RDS installation. You should not put directories in the MySQL data directory.
The two sample t-test for equal variance is a statistical test to determine if the means of two groups are different enough that the difference is likely caused by some underlying difference, rather than random chance.
This is a technical walkthrough of the vsql-extension-builder recently released May 28 at Percona Live Bay Area 2026 and found at https://github.com/villagesql/villagesql-skills . Highlights Install VillageSQL pre-built binary first Install SDK with pre-built binary second Install the skill Run it with your AI tool The output can be found at https://github.
AI-Assisted SQL Tuning Last week in his keynote speech at Percona Live Bay Area 2026 , Andy Pavlo presented Databases: The Final Boss of Agents and provided some useful insights into query optimization of simulated workloads leveraging AI.
