public sealed class QueryExpansionSpec : IMessage<SearchRequest.Types.QueryExpansionSpec>, IEquatable<SearchRequest.Types.QueryExpansionSpec>, IDeepCloneable<SearchRequest.Types.QueryExpansionSpec>, IBufferMessage, IMessage
Specification to determine under which conditions query expansion should
occur.
public SearchRequest.Types.QueryExpansionSpec.Types.Condition Condition { get; set; }
The condition under which query expansion should occur. Default to
[Condition.DISABLED][google.cloud.retail.v2.SearchRequest.QueryExpansionSpec.Condition.DISABLED].
Whether to pin unexpanded results. If this field is set to true,
unexpanded products are always at the top of the search results, followed
by the expanded results.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-07 UTC."],[[["\u003cp\u003eThis page documents the \u003ccode\u003eQueryExpansionSpec\u003c/code\u003e class within the \u003ccode\u003eGoogle.Cloud.Retail.V2\u003c/code\u003e namespace, which is used to specify the conditions under which query expansion should occur during a search.\u003c/p\u003e\n"],["\u003cp\u003eThe class implements several interfaces including \u003ccode\u003eIMessage\u003c/code\u003e, \u003ccode\u003eIEquatable\u003c/code\u003e, \u003ccode\u003eIDeepCloneable\u003c/code\u003e, and \u003ccode\u003eIBufferMessage\u003c/code\u003e, and inherits from the base \u003ccode\u003eObject\u003c/code\u003e class.\u003c/p\u003e\n"],["\u003cp\u003eIt contains two constructors: a default \u003ccode\u003eQueryExpansionSpec()\u003c/code\u003e constructor, and one that accepts another \u003ccode\u003eQueryExpansionSpec\u003c/code\u003e object as a parameter for creating a copy.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eQueryExpansionSpec\u003c/code\u003e class has two properties: \u003ccode\u003eCondition\u003c/code\u003e, which determines when query expansion occurs with a default value of disabled, and \u003ccode\u003ePinUnexpandedResults\u003c/code\u003e, a boolean for pinning unexpanded results to the top.\u003c/p\u003e\n"],["\u003cp\u003eThe latest version available for the \u003ccode\u003eQueryExpansionSpec\u003c/code\u003e class is version 2.12.0, and it has version records going as far back as 1.0.0.\u003c/p\u003e\n"]]],[],null,[]]
