[[["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 webpage provides reference documentation for the `Database.Types.ConcurrencyMode` enum within the Google Cloud Firestore Admin v1 API."],["The latest documented version is 3.12.0, with links available for previous versions, including a history of versions ranging from 2.2.0 to 3.12.0."],["The `ConcurrencyMode` enum specifies the type of concurrency control for transactions, including options like `Optimistic`, `OptimisticWithEntityGroups`, and `Pessimistic`."],["The enum members are described, which explains that `Optimistic` and `Pessimistic` are available for Cloud Firestore, `OptimisticWithEntityGroups` is for Cloud Datastore, and `Unspecified` is not used."],["The default concurrency control setting for Cloud Firestore is `Pessimistic`."]]],[]]