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"]],[["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 2025-03-21 UTC."],[[["The webpage details the `ReadPartition` class in the Google Cloud Spanner C++ library, a regular type representing a slice of a parallel Read operation."],["`ReadPartition` objects are created via `Client::PartitionRead`, then they can be serialized and transmitted to other processes for parallel data reading using `Client::Read`, optionally leveraging Cloud Spanner Data Boost."],["The class provides constructors for copying and moving, as well as operators for assignment operations, allowing for flexible object handling."],["The class also provides methods for retrieving information about table names, column names, and read options with the `TableName() const`, `ColumnNames() const`, and `ReadOptions() const` functions respectively."],["The webpage contains versioned documentation, with the latest being 2.37.0-rc and ranges down to version 2.11.0."]]],[]]
