Propel AWS Athena Efficiency with Strategic Tuning

Our service automatically partitions your data by date, region, or custom fields to reduce scanned data by 99%. We implement bucketing for high-cardinality columns to further accelerate lookups without metadata overhead.

We convert your CSVs/JSONs into Parquet/ORC formats, enabling column-level scanning and compression for 3-10x faster queries. Built-in predicate pushdown skips irrelevant data blocks entirely.

Our algorithms merge small files into optimal 128MB-1GB chunks while maintaining splittability, eliminating the 72% slowdown from excessive S3 requests. Compression cuts storage costs by 60%+.

Leveraging Athena’s CBO engine, we analyze statistics to optimize joins, aggregations, and sorts – reducing runtimes by 50%+. EXPLAIN ANALYZE pinpoints wasteful scans for precise fixes.