Bytedance's Parquet Format Optimization for Cost Reduction and Efficiency

Explore Bytedance's innovative approach to cost reduction and efficiency improvement using the Parquet format in this informative conference talk. Discover how Bytedance tackled challenges related to small file proliferation and high data storage costs in their offline data warehouse. Learn about the advanced techniques implemented to optimize Parquet file overwriting, including binary copy methods that bypass redundant operations like codec and decompression. Gain insights into the performance improvements achieved, with efficiency gains of over 10 times compared to traditional overwriting methods. Understand the new SQL syntax introduced to simplify small file merging and column-level TTL operations, enhancing user experience and data management capabilities.