Amazon S3 Tables added support for the Variant data type aligned with Apache Iceberg Version 3, allowing direct ingestion of semi-structured data formats like JSON without predefining schemas. This innovation accelerates data landing times while maintaining efficient analytical query performance.
Under the hood, Iceberg V3 engines parse Variant data into hidden columns with Parquet file statistics, enabling query optimizations such as file pruning. S3 Tables also manage ongoing maintenance tasks like compaction for Variant data. This feature is available across numerous AWS regions, supporting scalable, schema-flexible analytics workloads.
Source & further reading
Amazon S3 Tables now support the Variant data type for Apache Iceberg V3 ↗Source published 2026-07-28. This report was prepared with AI assistance from the linked primary-source material. Claims and limitations should be checked against the original announcement or research.