java.lang.Object
org.elasticsearch.xpack.esql.planner.mapper.Mapper

public class Mapper extends Object

This class is part of the planner

Translates the logical plan into a physical plan. This is where we start to decide what will be executed on the data nodes and what will be executed on the coordinator nodes. This step creates FragmentExec instances, which represent logical plan fragments to be sent to the data nodes and ExchangeExec instances, which represent data being sent back from the data nodes to the coordinating node.