Unlock the power of Apache Iceberg v3 deletion vectors on Amazon EMR

The article discusses the improvements in Apache Iceberg v3's deletion vectors on Amazon EMR, focusing on more efficient row-level delete handling compared to previous versions.

• Iceberg v3 introduces binary deletion vectors stored in compact Puffin files
• Replaces positional delete files with more efficient bitmap-based deletion tracking
• Performance tests showed significant improvements:
  • Delete operation time reduced by 55%
  • Delete file size reduced by 73.6%
  • Full table read performance improved by 28.5%
  • Filtered read performance improved by 23%
• Tested on Amazon EMR 7.10.0 with Spark 3.5.5
• Provides more efficient metadata handling and query performance

The new approach reduces I/O overhead, improves query performance, and increases storage efficiency for data management.