[[["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 2025-03-21 UTC."],[[["This page provides documentation for the `DataMaskingPolicy.Types.PredefinedExpression` enum within the Google Cloud BigQuery Data Policy v1 API, specifically for version 1.3.0."],["The `DataMaskingPolicy.Types.PredefinedExpression` enum defines a set of masking rules that can be applied to data, with options such as `AlwaysNull`, `DateYearMask`, `DefaultMaskingValue`, `EmailMask`, `FirstFourCharacters`, `LastFourCharacters`, `Sha256`, and `Unspecified`."],["The documentation details the behavior of each masking expression, such as replacing data with NULLs, showing only the year of a date, or masking email addresses, providing instructions to understand how each mask works."],["This page includes a link for users to further understand the masking options available, and links to see the versioning of the API, showing that version 1.5.0 is the latest."],["The default masking values, and the system variable instructions are also listed within the documentation for user reference."]]],[]]