Alex Chih — WritingField notes from cloud security work and the classroom.https://alexchih.com/Querying S3 access logs with Athena, at zero infrastructure costhttps://alexchih.com/blog/athena-s3-logs/https://alexchih.com/blog/athena-s3-logs/Make your S3 access logs actually queryable: date-based partitioning, partition projection, and the SQL I actually run.Mon, 10 Aug 2026 00:00:00 GMT