The Spanner client library uses the same mechanism as all other C++ client libraries for configuration. As usual for the C++ client libraries, it adds a number of unique options only applicable for the Spanner library.
[[["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 2025-09-04 UTC."],[[["\u003cp\u003eThe latest release candidate for the Spanner C++ client library is version 2.37.0-rc, with a range of available versions from 2.11.0 up to the latest.\u003c/p\u003e\n"],["\u003cp\u003eThe Spanner client library utilizes a configuration mechanism that is consistent with other C++ client libraries, but includes specific configuration options unique to Spanner.\u003c/p\u003e\n"],["\u003cp\u003eThe configuration classes include \u003ccode\u003eSpannerRetryPolicyOption\u003c/code\u003e, \u003ccode\u003eSpannerBackoffPolicyOption\u003c/code\u003e, \u003ccode\u003eSpannerPollingPolicyOption\u003c/code\u003e, and many other options related to session management, query optimization, and request settings.\u003c/p\u003e\n"],["\u003cp\u003eClient library configuration can be reviewed in more detail at the provided link for general client library configuration.\u003c/p\u003e\n"],["\u003cp\u003eThe different options allow users to customize various aspects of their interactions with Spanner, such as retry policies, session pooling, query optimization, and request prioritization.\u003c/p\u003e\n"]]],[],null,["# Spanner Client Library Configuration Options (2.12.0)\n\nVersion 2.12.0keyboard_arrow_down\n\n- [2.42.0-rc (latest)](/cpp/docs/reference/spanner/latest/group__spanner-options)\n- [2.41.0](/cpp/docs/reference/spanner/2.41.0/group__spanner-options)\n- [2.40.0](/cpp/docs/reference/spanner/2.40.0/group__spanner-options)\n- [2.39.0](/cpp/docs/reference/spanner/2.39.0/group__spanner-options)\n- [2.38.0](/cpp/docs/reference/spanner/2.38.0/group__spanner-options)\n- [2.37.0](/cpp/docs/reference/spanner/2.37.0/group__spanner-options)\n- [2.36.0](/cpp/docs/reference/spanner/2.36.0/group__spanner-options)\n- [2.35.0](/cpp/docs/reference/spanner/2.35.0/group__spanner-options)\n- [2.34.0](/cpp/docs/reference/spanner/2.34.0/group__spanner-options)\n- [2.33.0](/cpp/docs/reference/spanner/2.33.0/group__spanner-options)\n- [2.32.0](/cpp/docs/reference/spanner/2.32.0/group__spanner-options)\n- [2.31.0](/cpp/docs/reference/spanner/2.31.0/group__spanner-options)\n- [2.30.0](/cpp/docs/reference/spanner/2.30.0/group__spanner-options)\n- [2.29.0](/cpp/docs/reference/spanner/2.29.0/group__spanner-options)\n- [2.28.0](/cpp/docs/reference/spanner/2.28.0/group__spanner-options)\n- [2.27.0](/cpp/docs/reference/spanner/2.27.0/group__spanner-options)\n- [2.26.0](/cpp/docs/reference/spanner/2.26.0/group__spanner-options)\n- [2.25.1](/cpp/docs/reference/spanner/2.25.1/group__spanner-options)\n- [2.24.0](/cpp/docs/reference/spanner/2.24.0/group__spanner-options)\n- [2.23.0](/cpp/docs/reference/spanner/2.23.0/group__spanner-options)\n- [2.22.1](/cpp/docs/reference/spanner/2.22.1/group__spanner-options)\n- [2.21.0](/cpp/docs/reference/spanner/2.21.0/group__spanner-options)\n- [2.20.0](/cpp/docs/reference/spanner/2.20.0/group__spanner-options)\n- [2.19.0](/cpp/docs/reference/spanner/2.19.0/group__spanner-options)\n- [2.18.0](/cpp/docs/reference/spanner/2.18.0/group__spanner-options)\n- [2.17.0](/cpp/docs/reference/spanner/2.17.0/group__spanner-options)\n- [2.16.0](/cpp/docs/reference/spanner/2.16.0/group__spanner-options)\n- [2.15.1](/cpp/docs/reference/spanner/2.15.1/group__spanner-options)\n- [2.14.0](/cpp/docs/reference/spanner/2.14.0/group__spanner-options)\n- [2.13.0](/cpp/docs/reference/spanner/2.13.0/group__spanner-options)\n- [2.12.0](/cpp/docs/reference/spanner/2.12.0/group__spanner-options)\n- [2.11.0](/cpp/docs/reference/spanner/2.11.0/group__spanner-options) \n\nSpanner Client Library Configuration Options\n============================================\n\nThe Spanner client library uses the same mechanism as all other C++ client libraries for configuration. As usual for the C++ client libraries, it adds a number of unique options only applicable for the Spanner library.\n\n###### See Also\n\n[Client Library Configuration](https://cloud.google.com/cpp/docs/reference/common/latest/group__options.html) - for an overview of client library configuration.\n\n### Classes\n\n- [`google::cloud::spanner::SpannerRetryPolicyOption`](/cpp/docs/reference/spanner/2.12.0/structgoogle_1_1cloud_1_1spanner_1_1SpannerRetryPolicyOption)\n- [`google::cloud::spanner::SpannerBackoffPolicyOption`](/cpp/docs/reference/spanner/2.12.0/structgoogle_1_1cloud_1_1spanner_1_1SpannerBackoffPolicyOption)\n- [`google::cloud::spanner::SpannerPollingPolicyOption`](/cpp/docs/reference/spanner/2.12.0/structgoogle_1_1cloud_1_1spanner_1_1SpannerPollingPolicyOption)\n- [`google::cloud::spanner::RouteToLeaderOption`](/cpp/docs/reference/spanner/2.12.0/structgoogle_1_1cloud_1_1spanner_1_1RouteToLeaderOption)\n- [`google::cloud::spanner::SessionCreatorRoleOption`](/cpp/docs/reference/spanner/2.12.0/structgoogle_1_1cloud_1_1spanner_1_1SessionCreatorRoleOption)\n- [`google::cloud::spanner::SessionPoolMinSessionsOption`](/cpp/docs/reference/spanner/2.12.0/structgoogle_1_1cloud_1_1spanner_1_1SessionPoolMinSessionsOption)\n- [`google::cloud::spanner::SessionPoolMaxSessionsPerChannelOption`](/cpp/docs/reference/spanner/2.12.0/structgoogle_1_1cloud_1_1spanner_1_1SessionPoolMaxSessionsPerChannelOption)\n- [`google::cloud::spanner::SessionPoolMaxIdleSessionsOption`](/cpp/docs/reference/spanner/2.12.0/structgoogle_1_1cloud_1_1spanner_1_1SessionPoolMaxIdleSessionsOption)\n- [`google::cloud::spanner::SessionPoolActionOnExhaustionOption`](/cpp/docs/reference/spanner/2.12.0/structgoogle_1_1cloud_1_1spanner_1_1SessionPoolActionOnExhaustionOption)\n- [`google::cloud::spanner::SessionPoolKeepAliveIntervalOption`](/cpp/docs/reference/spanner/2.12.0/structgoogle_1_1cloud_1_1spanner_1_1SessionPoolKeepAliveIntervalOption)\n- [`google::cloud::spanner::SessionPoolLabelsOption`](/cpp/docs/reference/spanner/2.12.0/structgoogle_1_1cloud_1_1spanner_1_1SessionPoolLabelsOption)\n- [`google::cloud::spanner::QueryOptimizerVersionOption`](/cpp/docs/reference/spanner/2.12.0/structgoogle_1_1cloud_1_1spanner_1_1QueryOptimizerVersionOption)\n- [`google::cloud::spanner::QueryOptimizerStatisticsPackageOption`](/cpp/docs/reference/spanner/2.12.0/structgoogle_1_1cloud_1_1spanner_1_1QueryOptimizerStatisticsPackageOption)\n- [`google::cloud::spanner::RequestPriorityOption`](/cpp/docs/reference/spanner/2.12.0/structgoogle_1_1cloud_1_1spanner_1_1RequestPriorityOption)\n- [`google::cloud::spanner::RequestTagOption`](/cpp/docs/reference/spanner/2.12.0/structgoogle_1_1cloud_1_1spanner_1_1RequestTagOption)\n- [`google::cloud::spanner::ReadIndexNameOption`](/cpp/docs/reference/spanner/2.12.0/structgoogle_1_1cloud_1_1spanner_1_1ReadIndexNameOption)\n- [`google::cloud::spanner::ReadRowLimitOption`](/cpp/docs/reference/spanner/2.12.0/structgoogle_1_1cloud_1_1spanner_1_1ReadRowLimitOption)\n- [`google::cloud::spanner::StreamingResumabilityBufferSizeOption`](/cpp/docs/reference/spanner/2.12.0/structgoogle_1_1cloud_1_1spanner_1_1StreamingResumabilityBufferSizeOption)\n- [`google::cloud::spanner::PartitionSizeOption`](/cpp/docs/reference/spanner/2.12.0/structgoogle_1_1cloud_1_1spanner_1_1PartitionSizeOption)\n- [`google::cloud::spanner::PartitionsMaximumOption`](/cpp/docs/reference/spanner/2.12.0/structgoogle_1_1cloud_1_1spanner_1_1PartitionsMaximumOption)\n- [`google::cloud::spanner::PartitionDataBoostOption`](/cpp/docs/reference/spanner/2.12.0/structgoogle_1_1cloud_1_1spanner_1_1PartitionDataBoostOption)\n- [`google::cloud::spanner::TransactionTagOption`](/cpp/docs/reference/spanner/2.12.0/structgoogle_1_1cloud_1_1spanner_1_1TransactionTagOption)\n- [`google::cloud::spanner::CommitReturnStatsOption`](/cpp/docs/reference/spanner/2.12.0/structgoogle_1_1cloud_1_1spanner_1_1CommitReturnStatsOption)"]]
