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Is Your S3 Partitioning Strategy Silently Killing Your Athena Performance?

-- The "Anti-Pattern": Thousands of tiny files in a deep partition structure SELECT count (*) FROM raw_logs WHERE event_date = '2023-10-01'; -- The "Optimized" Approach: Compaction and partition…

  • Improper S3 partitioning can silently degrade Athena performance
  • Compaction strategy and partition pruning optimize query performance
  • Apache Iceberg with Athena abstracts file layout for automated compaction

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