public sealed class PrivacyMetric.Types.KMapEstimationConfig.Types.AuxiliaryTable.Types.QuasiIdField : IMessage<PrivacyMetric.Types.KMapEstimationConfig.Types.AuxiliaryTable.Types.QuasiIdField>, IEquatable<PrivacyMetric.Types.KMapEstimationConfig.Types.AuxiliaryTable.Types.QuasiIdField>, IDeepCloneable<PrivacyMetric.Types.KMapEstimationConfig.Types.AuxiliaryTable.Types.QuasiIdField>, IBufferMessage, IMessage
Reference documentation and code samples for the Google Cloud Data Loss Prevention v2 API class PrivacyMetric.Types.KMapEstimationConfig.Types.AuxiliaryTable.Types.QuasiIdField.
A quasi-identifier column has a custom_tag, used to know which column
in the data corresponds to which column in the statistical model.
[[["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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-07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\u003eThe latest version available for the \u003ccode\u003eQuasiIdField\u003c/code\u003e class is 4.16.0, which is part of the Google Cloud Data Loss Prevention v2 API.\u003c/p\u003e\n"],["\u003cp\u003eThis webpage provides reference documentation and code samples for the \u003ccode\u003ePrivacyMetric.Types.KMapEstimationConfig.Types.AuxiliaryTable.Types.QuasiIdField\u003c/code\u003e class.\u003c/p\u003e\n"],["\u003cp\u003e\u003ccode\u003eQuasiIdField\u003c/code\u003e is a class that represents a quasi-identifier column and has properties such as \u003ccode\u003eCustomTag\u003c/code\u003e and \u003ccode\u003eField\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eThe class \u003ccode\u003eQuasiIdField\u003c/code\u003e is used to specify a column to correspond to a column within a given statistical model.\u003c/p\u003e\n"],["\u003cp\u003eThere are multiple previous versions of this class, going back as far as 2.15.0, with most versions in the 4.X.X range.\u003c/p\u003e\n"]]],[],null,["# Google Cloud Data Loss Prevention v2 API - Class PrivacyMetric.Types.KMapEstimationConfig.Types.AuxiliaryTable.Types.QuasiIdField (4.19.0)\n\nVersion latestkeyboard_arrow_down\n\n- [4.19.0 (latest)](/dotnet/docs/reference/Google.Cloud.Dlp.V2/latest/Google.Cloud.Dlp.V2.PrivacyMetric.Types.KMapEstimationConfig.Types.AuxiliaryTable.Types.QuasiIdField)\n- [4.18.0](/dotnet/docs/reference/Google.Cloud.Dlp.V2/4.18.0/Google.Cloud.Dlp.V2.PrivacyMetric.Types.KMapEstimationConfig.Types.AuxiliaryTable.Types.QuasiIdField)\n- [4.17.0](/dotnet/docs/reference/Google.Cloud.Dlp.V2/4.17.0/Google.Cloud.Dlp.V2.PrivacyMetric.Types.KMapEstimationConfig.Types.AuxiliaryTable.Types.QuasiIdField)\n- [4.16.0](/dotnet/docs/reference/Google.Cloud.Dlp.V2/4.16.0/Google.Cloud.Dlp.V2.PrivacyMetric.Types.KMapEstimationConfig.Types.AuxiliaryTable.Types.QuasiIdField)\n- [4.15.0](/dotnet/docs/reference/Google.Cloud.Dlp.V2/4.15.0/Google.Cloud.Dlp.V2.PrivacyMetric.Types.KMapEstimationConfig.Types.AuxiliaryTable.Types.QuasiIdField)\n- [4.14.0](/dotnet/docs/reference/Google.Cloud.Dlp.V2/4.14.0/Google.Cloud.Dlp.V2.PrivacyMetric.Types.KMapEstimationConfig.Types.AuxiliaryTable.Types.QuasiIdField)\n- [4.13.0](/dotnet/docs/reference/Google.Cloud.Dlp.V2/4.13.0/Google.Cloud.Dlp.V2.PrivacyMetric.Types.KMapEstimationConfig.Types.AuxiliaryTable.Types.QuasiIdField)\n- [4.12.0](/dotnet/docs/reference/Google.Cloud.Dlp.V2/4.12.0/Google.Cloud.Dlp.V2.PrivacyMetric.Types.KMapEstimationConfig.Types.AuxiliaryTable.Types.QuasiIdField)\n- [4.11.0](/dotnet/docs/reference/Google.Cloud.Dlp.V2/4.11.0/Google.Cloud.Dlp.V2.PrivacyMetric.Types.KMapEstimationConfig.Types.AuxiliaryTable.Types.QuasiIdField)\n- [4.10.0](/dotnet/docs/reference/Google.Cloud.Dlp.V2/4.10.0/Google.Cloud.Dlp.V2.PrivacyMetric.Types.KMapEstimationConfig.Types.AuxiliaryTable.Types.QuasiIdField)\n- [4.9.0](/dotnet/docs/reference/Google.Cloud.Dlp.V2/4.9.0/Google.Cloud.Dlp.V2.PrivacyMetric.Types.KMapEstimationConfig.Types.AuxiliaryTable.Types.QuasiIdField)\n- [4.8.0](/dotnet/docs/reference/Google.Cloud.Dlp.V2/4.8.0/Google.Cloud.Dlp.V2.PrivacyMetric.Types.KMapEstimationConfig.Types.AuxiliaryTable.Types.QuasiIdField)\n- [4.7.0](/dotnet/docs/reference/Google.Cloud.Dlp.V2/4.7.0/Google.Cloud.Dlp.V2.PrivacyMetric.Types.KMapEstimationConfig.Types.AuxiliaryTable.Types.QuasiIdField)\n- [4.6.0](/dotnet/docs/reference/Google.Cloud.Dlp.V2/4.6.0/Google.Cloud.Dlp.V2.PrivacyMetric.Types.KMapEstimationConfig.Types.AuxiliaryTable.Types.QuasiIdField)\n- [4.5.0](/dotnet/docs/reference/Google.Cloud.Dlp.V2/4.5.0/Google.Cloud.Dlp.V2.PrivacyMetric.Types.KMapEstimationConfig.Types.AuxiliaryTable.Types.QuasiIdField)\n- [4.4.0](/dotnet/docs/reference/Google.Cloud.Dlp.V2/4.4.0/Google.Cloud.Dlp.V2.PrivacyMetric.Types.KMapEstimationConfig.Types.AuxiliaryTable.Types.QuasiIdField)\n- [4.3.0](/dotnet/docs/reference/Google.Cloud.Dlp.V2/4.3.0/Google.Cloud.Dlp.V2.PrivacyMetric.Types.KMapEstimationConfig.Types.AuxiliaryTable.Types.QuasiIdField)\n- [4.2.0](/dotnet/docs/reference/Google.Cloud.Dlp.V2/4.2.0/Google.Cloud.Dlp.V2.PrivacyMetric.Types.KMapEstimationConfig.Types.AuxiliaryTable.Types.QuasiIdField)\n- [4.1.0](/dotnet/docs/reference/Google.Cloud.Dlp.V2/4.1.0/Google.Cloud.Dlp.V2.PrivacyMetric.Types.KMapEstimationConfig.Types.AuxiliaryTable.Types.QuasiIdField)\n- [4.0.0](/dotnet/docs/reference/Google.Cloud.Dlp.V2/4.0.0/Google.Cloud.Dlp.V2.PrivacyMetric.Types.KMapEstimationConfig.Types.AuxiliaryTable.Types.QuasiIdField)\n- [3.5.0](/dotnet/docs/reference/Google.Cloud.Dlp.V2/3.5.0/Google.Cloud.Dlp.V2.PrivacyMetric.Types.KMapEstimationConfig.Types.AuxiliaryTable.Types.QuasiIdField)\n- [3.4.0](/dotnet/docs/reference/Google.Cloud.Dlp.V2/3.4.0/Google.Cloud.Dlp.V2.PrivacyMetric.Types.KMapEstimationConfig.Types.AuxiliaryTable.Types.QuasiIdField)\n- [3.3.0](/dotnet/docs/reference/Google.Cloud.Dlp.V2/3.3.0/Google.Cloud.Dlp.V2.PrivacyMetric.Types.KMapEstimationConfig.Types.AuxiliaryTable.Types.QuasiIdField)\n- [3.2.0](/dotnet/docs/reference/Google.Cloud.Dlp.V2/3.2.0/Google.Cloud.Dlp.V2.PrivacyMetric.Types.KMapEstimationConfig.Types.AuxiliaryTable.Types.QuasiIdField)\n- [2.16.0](/dotnet/docs/reference/Google.Cloud.Dlp.V2/2.16.0/Google.Cloud.Dlp.V2.PrivacyMetric.Types.KMapEstimationConfig.Types.AuxiliaryTable.Types.QuasiIdField)\n- [2.15.0](/dotnet/docs/reference/Google.Cloud.Dlp.V2/2.15.0/Google.Cloud.Dlp.V2.PrivacyMetric.Types.KMapEstimationConfig.Types.AuxiliaryTable.Types.QuasiIdField) \n\n public sealed class PrivacyMetric.Types.KMapEstimationConfig.Types.AuxiliaryTable.Types.QuasiIdField : IMessage\u003cPrivacyMetric.Types.KMapEstimationConfig.Types.AuxiliaryTable.Types.QuasiIdField\u003e, IEquatable\u003cPrivacyMetric.Types.KMapEstimationConfig.Types.AuxiliaryTable.Types.QuasiIdField\u003e, IDeepCloneable\u003cPrivacyMetric.Types.KMapEstimationConfig.Types.AuxiliaryTable.Types.QuasiIdField\u003e, IBufferMessage, IMessage\n\nReference documentation and code samples for the Google Cloud Data Loss Prevention v2 API class PrivacyMetric.Types.KMapEstimationConfig.Types.AuxiliaryTable.Types.QuasiIdField.\n\nA quasi-identifier column has a custom_tag, used to know which column\nin the data corresponds to which column in the statistical model. \n\nInheritance\n-----------\n\n[object](https://learn.microsoft.com/dotnet/api/system.object) \\\u003e PrivacyMetric.Types.KMapEstimationConfig.Types.AuxiliaryTable.Types.QuasiIdField \n\nImplements\n----------\n\n[IMessage](https://cloud.google.com/dotnet/docs/reference/Google.Protobuf/latest/Google.Protobuf.IMessage-1.html)[PrivacyMetric](/dotnet/docs/reference/Google.Cloud.Dlp.V2/latest/Google.Cloud.Dlp.V2.PrivacyMetric)[Types](/dotnet/docs/reference/Google.Cloud.Dlp.V2/latest/Google.Cloud.Dlp.V2.PrivacyMetric.Types)[KMapEstimationConfig](/dotnet/docs/reference/Google.Cloud.Dlp.V2/latest/Google.Cloud.Dlp.V2.PrivacyMetric.Types.KMapEstimationConfig)[Types](/dotnet/docs/reference/Google.Cloud.Dlp.V2/latest/Google.Cloud.Dlp.V2.PrivacyMetric.Types.KMapEstimationConfig.Types)[AuxiliaryTable](/dotnet/docs/reference/Google.Cloud.Dlp.V2/latest/Google.Cloud.Dlp.V2.PrivacyMetric.Types.KMapEstimationConfig.Types.AuxiliaryTable)[Types](/dotnet/docs/reference/Google.Cloud.Dlp.V2/latest/Google.Cloud.Dlp.V2.PrivacyMetric.Types.KMapEstimationConfig.Types.AuxiliaryTable.Types)[QuasiIdField](/dotnet/docs/reference/Google.Cloud.Dlp.V2/latest/Google.Cloud.Dlp.V2.PrivacyMetric.Types.KMapEstimationConfig.Types.AuxiliaryTable.Types.QuasiIdField), [IEquatable](https://learn.microsoft.com/dotnet/api/system.iequatable-1)[PrivacyMetric](/dotnet/docs/reference/Google.Cloud.Dlp.V2/latest/Google.Cloud.Dlp.V2.PrivacyMetric)[Types](/dotnet/docs/reference/Google.Cloud.Dlp.V2/latest/Google.Cloud.Dlp.V2.PrivacyMetric.Types)[KMapEstimationConfig](/dotnet/docs/reference/Google.Cloud.Dlp.V2/latest/Google.Cloud.Dlp.V2.PrivacyMetric.Types.KMapEstimationConfig)[Types](/dotnet/docs/reference/Google.Cloud.Dlp.V2/latest/Google.Cloud.Dlp.V2.PrivacyMetric.Types.KMapEstimationConfig.Types)[AuxiliaryTable](/dotnet/docs/reference/Google.Cloud.Dlp.V2/latest/Google.Cloud.Dlp.V2.PrivacyMetric.Types.KMapEstimationConfig.Types.AuxiliaryTable)[Types](/dotnet/docs/reference/Google.Cloud.Dlp.V2/latest/Google.Cloud.Dlp.V2.PrivacyMetric.Types.KMapEstimationConfig.Types.AuxiliaryTable.Types)[QuasiIdField](/dotnet/docs/reference/Google.Cloud.Dlp.V2/latest/Google.Cloud.Dlp.V2.PrivacyMetric.Types.KMapEstimationConfig.Types.AuxiliaryTable.Types.QuasiIdField), [IDeepCloneable](https://cloud.google.com/dotnet/docs/reference/Google.Protobuf/latest/Google.Protobuf.IDeepCloneable-1.html)[PrivacyMetric](/dotnet/docs/reference/Google.Cloud.Dlp.V2/latest/Google.Cloud.Dlp.V2.PrivacyMetric)[Types](/dotnet/docs/reference/Google.Cloud.Dlp.V2/latest/Google.Cloud.Dlp.V2.PrivacyMetric.Types)[KMapEstimationConfig](/dotnet/docs/reference/Google.Cloud.Dlp.V2/latest/Google.Cloud.Dlp.V2.PrivacyMetric.Types.KMapEstimationConfig)[Types](/dotnet/docs/reference/Google.Cloud.Dlp.V2/latest/Google.Cloud.Dlp.V2.PrivacyMetric.Types.KMapEstimationConfig.Types)[AuxiliaryTable](/dotnet/docs/reference/Google.Cloud.Dlp.V2/latest/Google.Cloud.Dlp.V2.PrivacyMetric.Types.KMapEstimationConfig.Types.AuxiliaryTable)[Types](/dotnet/docs/reference/Google.Cloud.Dlp.V2/latest/Google.Cloud.Dlp.V2.PrivacyMetric.Types.KMapEstimationConfig.Types.AuxiliaryTable.Types)[QuasiIdField](/dotnet/docs/reference/Google.Cloud.Dlp.V2/latest/Google.Cloud.Dlp.V2.PrivacyMetric.Types.KMapEstimationConfig.Types.AuxiliaryTable.Types.QuasiIdField), [IBufferMessage](https://cloud.google.com/dotnet/docs/reference/Google.Protobuf/latest/Google.Protobuf.IBufferMessage.html), [IMessage](https://cloud.google.com/dotnet/docs/reference/Google.Protobuf/latest/Google.Protobuf.IMessage.html) \n\nInherited Members\n-----------------\n\n[object.GetHashCode()](https://learn.microsoft.com/dotnet/api/system.object.gethashcode) \n[object.GetType()](https://learn.microsoft.com/dotnet/api/system.object.gettype) \n[object.ToString()](https://learn.microsoft.com/dotnet/api/system.object.tostring)\n\nNamespace\n---------\n\n[Google.Cloud.Dlp.V2](/dotnet/docs/reference/Google.Cloud.Dlp.V2/latest/Google.Cloud.Dlp.V2)\n\nAssembly\n--------\n\nGoogle.Cloud.Dlp.V2.dll\n\nConstructors\n------------\n\n### QuasiIdField()\n\n public QuasiIdField()\n\n### QuasiIdField(QuasiIdField)\n\n public QuasiIdField(PrivacyMetric.Types.KMapEstimationConfig.Types.AuxiliaryTable.Types.QuasiIdField other)\n\nProperties\n----------\n\n### CustomTag\n\n public string CustomTag { get; set; }\n\nA auxiliary field.\n\n### Field\n\n public FieldId Field { get; set; }\n\nIdentifies the column."]]
