[[["容易理解","easyToUnderstand","thumb-up"],["確實解決了我的問題","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["難以理解","hardToUnderstand","thumb-down"],["資訊或程式碼範例有誤","incorrectInformationOrSampleCode","thumb-down"],["缺少我需要的資訊/範例","missingTheInformationSamplesINeed","thumb-down"],["翻譯問題","translationIssue","thumb-down"],["其他","otherDown","thumb-down"]],["上次更新時間：2025-07-14 (世界標準時間)。"],[[["Firestore in Datastore mode's point-in-time recovery (PITR) feature protects against accidental data deletion or incorrect writes by retaining versions of entities for up to 7 days, allowing for seamless data recovery."],["Enabling PITR does not affect the performance of reads or writes for live databases that adhere to best practices."],["PITR data is retained for 7 days, and data can be read at minute granularity within this window, where the availability of data depends on when PITR was enabled, with the earliest available data ranging from 1 hour before a read request to 7 days prior."],["Data can be recovered either by performing stale reads on a portion of the database and writing it back or by exporting the entire database to a specific point in time and importing it into a new database."],["Using PITR incurs storage and compute costs, with storage measured daily and averaged monthly, and read operation costs for any queries within the 7-day PITR window, additionally there is a potential charge for up to 1 day of storage even if the feature is turned off quickly."]]],[]]
