From Bottlenecks to Balance: Dynamic Skew Join Fixes in Spark

When working with large datasets in Spark, joins are a common operation. But what happens when data distribution isn’t uniform? Let’s dive into a real-world scenario to understand why dynamic skew join optimization is not just useful, but often essential.&#xA;The Problem Setup Assume we have two large tables and we&rsquo;re trying to join them using the following Spark SQL:&#xA;SELECT * FROM…