Spark SQL optimization internals articles

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Articles tagged with Spark SQL optimization internals. There are 6 article(s) corresponding to the tag Spark SQL optimization internals. If you don't find what you're looking for, please check related tags: access pattern, Ad-hoc polymorphism, Akka Distributed Data, Akka examples, algorithm analysis, algorithm complexity, Apache Beam configuration, Apache Beam internals, Apache Beam partitioning, Apache Beam PCollection.

Spark SQL Cost-Based Optimizer

Prior to Spark 2.2.0 release, the data processing was based on a set of heuristic rules ignoring the typology of the data. But the most recent release brought a tool well known from the RDBMS world that is a Cost-Based Optimizer. Continue Reading →