The QueryPartition class is a regular type that represents a single slice of a parallel SQL read.
Instances of QueryPartition are created by Client::PartitionQuery. Once created, QueryPartition objects can be serialized, transmitted to separate processes, and used to read data in parallel using Client::ExecuteQuery. If data_boost is set, those requests will be executed using the independent compute resources of Cloud Spanner Data Boost.
[[["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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-22 UTC."],[[["\u003cp\u003eThe webpage details the \u003ccode\u003eQueryPartition\u003c/code\u003e class within the Google Cloud Spanner C++ library, outlining its use in parallel SQL reads.\u003c/p\u003e\n"],["\u003cp\u003e\u003ccode\u003eQueryPartition\u003c/code\u003e objects are created through \u003ccode\u003eClient::PartitionQuery\u003c/code\u003e, which are then able to be serialized and transmitted to other processes.\u003c/p\u003e\n"],["\u003cp\u003eParallel data reading is possible using these objects in conjunction with \u003ccode\u003eClient::ExecuteQuery\u003c/code\u003e, allowing for the use of separate processes.\u003c/p\u003e\n"],["\u003cp\u003eThe page also outlines the \u003ccode\u003eQueryPartition\u003c/code\u003e class constructors, including copy and move operations, along with the \u003ccode\u003esql_statement()\u003c/code\u003e function to access the related \u003ccode\u003eSqlStatement\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eThe page includes links to the documentation for different versions of the \u003ccode\u003eQueryPartition\u003c/code\u003e class, ranging from version 2.11.0 to the latest release candidate, 2.37.0-rc.\u003c/p\u003e\n"]]],[],null,[]]
