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, SymbolAllocator symbolAllocator, PlanNodeIdAllocator idAllocator)
static NodeAndMappings	copyPlan(PlanNode plan, List<Symbol> fields, SymbolAllocator symbolAllocator, PlanNodeIdAllocator idAllocator, Lookup lookup)

Methods inherited from class java.lang.Object

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

Method Details

copyPlan

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

copyPlan

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