Package io.trino.sql.planner

Class PlanCopier

java.lang.Object

io.trino.sql.planner.PlanCopier

public final class PlanCopier
extends Object

Clones plan and assigns new PlanNodeIds to the copied PlanNodes. Also, replaces all symbols in the copied plan with new symbols. The original and copied plans can be safely used in different branches of plan.

Method Summary

Modifier and Type	Method	Description
static NodeAndMappings	copyPlan(PlanNode plan, List<Symbol> fields, Metadata metadata, SymbolAllocator symbolAllocator, PlanNodeIdAllocator idAllocator)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

copyPlan

public static NodeAndMappings copyPlan(PlanNode plan,
                                       List<Symbol> fields,
                                       Metadata metadata,
                                       SymbolAllocator symbolAllocator,
                                       PlanNodeIdAllocator idAllocator)