The ReadPartition class is a regular type that represents a single slice of a parallel Read operation.
Instances of ReadPartition are created by Client::PartitionRead. Once created, ReadPartition objects can be serialized, transmitted to separate processes, and used to read data in parallel using Client::Read. If data_boost is set, those requests will be executed using the independent compute resources of Cloud Spanner Data Boost.
Constructors
ReadPartition(ReadPartition const &)
Copy and move.
Parameter
Name
Description
ReadPartition const &
ReadPartition(ReadPartition &&)
Copy and move.
Parameter
Name
Description
ReadPartition &&
ReadPartition()
Constructs an instance of ReadPartition that does not specify any table or columns to be read.
[[["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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-22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 \u003ccode\u003eReadPartition\u003c/code\u003e class represents a single slice of a parallel Read operation in the Cloud Spanner.\u003c/p\u003e\n"],["\u003cp\u003e\u003ccode\u003eReadPartition\u003c/code\u003e instances are created via \u003ccode\u003eClient::PartitionRead\u003c/code\u003e and can be used to perform parallel data reads using \u003ccode\u003eClient::Read\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eThe class has copy and move constructors and assignment operators to handle \u003ccode\u003eReadPartition\u003c/code\u003e objects.\u003c/p\u003e\n"],["\u003cp\u003e\u003ccode\u003eReadPartition\u003c/code\u003e objects include functions to retrieve the table name, column names, and associated \u003ccode\u003eReadOptions\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eThe latest release candidate version available is 2.37.0-rc, and the list contains versions as low as 2.11.0 of the \u003ccode\u003eReadPartition\u003c/code\u003e class.\u003c/p\u003e\n"]]],[],null,[]]
