[[["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 documentation for the `Database.Types.ConcurrencyMode` enum within the Firestore Admin v1 API."],["The latest version of the API documented is 3.12.0, with links available for previous versions back to 2.2.0."],["The `ConcurrencyMode` enum defines different types of concurrency control for transactions, including `Optimistic`, `OptimisticWithEntityGroups`, and `Pessimistic`."],["The `OptimisticWithEntityGroups` mode is specific to Cloud Datastore, and should only be used with Firestore in Datastore mode."],["The `Pessimistic` mode is the default concurrency control method for Cloud Firestore databases."]]],[]]
