The nodes in the query plan. Plan nodes are returned in pre-order starting
with the plan root. Each [PlanNode][google.spanner.v1.PlanNode]'s id corresponds to its index in
plan_nodes.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-04-17 UTC."],[[["This document provides reference documentation for the `QueryPlan` class within the Google Cloud Spanner v1 API, specifically version 4.4.0."],["The `QueryPlan` class represents an ordered list of nodes in a query plan, and it implements interfaces like `IMessage`, `IEquatable`, `IDeepCloneable`, and `IBufferMessage`."],["The `PlanNodes` property, of type `RepeatedField\u003cPlanNode\u003e`, holds the ordered list of nodes, where each node's ID corresponds to its index in the list."],["The document lists different versions of the API from 3.5.0 to 5.0.0-beta05 and links to each of their reference pages."],["The `QueryPlan` class has two constructors, a default one and one that takes another `QueryPlan` object as a parameter."]]],[]]