Reference documentation and code samples for the Google Cloud Spanner v1 API enum RequestOptions.Types.Priority.
The relative priority for requests. Note that priority is not applicable
for [BeginTransaction][google.spanner.v1.Spanner.BeginTransaction].
The priority acts as a hint to the Cloud Spanner scheduler and does not
guarantee priority or order of execution. For example:
Some parts of a write operation always execute at PRIORITY_HIGH,
regardless of the specified priority. This may cause you to see an
increase in high priority workload even when executing a low priority
request. This can also potentially cause a priority inversion where a
lower priority request will be fulfilled ahead of a higher priority
request.
If a transaction contains multiple operations with different priorities,
Cloud Spanner does not guarantee to process the higher priority
operations first. There may be other constraints to satisfy, such as
order of operations.
[[["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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-07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 is 5.0.0-beta05, while version 4.5.0 is the current focus, with a list of other available versions ranging from 3.5.0 to 4.6.0.\u003c/p\u003e\n"],["\u003cp\u003e\u003ccode\u003eRequestOptions.Types.Priority\u003c/code\u003e is an enum used in the Google Cloud Spanner v1 API to indicate the relative priority of requests, excluding \u003ccode\u003eBeginTransaction\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eThe priority set is only a suggestion to the Cloud Spanner scheduler and does not guarantee execution order or actual priority; therefore, it may present itself with priority inversions.\u003c/p\u003e\n"],["\u003cp\u003eThe enum offers four priority settings: \u003ccode\u003eHigh\u003c/code\u003e, \u003ccode\u003eLow\u003c/code\u003e, \u003ccode\u003eMedium\u003c/code\u003e, and \u003ccode\u003eUnspecified\u003c/code\u003e, with \u003ccode\u003eUnspecified\u003c/code\u003e being treated as equivalent to \u003ccode\u003eHigh\u003c/code\u003e priority.\u003c/p\u003e\n"]]],[],null,[]]
