DataFunSummit

Oct 8, 2024 · Big Data

Understanding Spark SQL Analyzer: Principles, Optimization Cases, and Rule‑Pruning in Spark 3.2+

This article explains the Spark SQL analysis layer, its core principles, how analysis rules such as ResolveRelations work, and the major pruning optimization introduced in Spark 3.2 that reduces unnecessary rule traversal, illustrated with concrete code examples and Q&A.