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 `ReadPartition` class represents a single segment of a parallel read operation in Cloud Spanner."],["`ReadPartition` instances are generated by the `Client::PartitionRead` method and can be distributed to multiple processes for parallel data retrieval."],["These `ReadPartition` objects can be used with the `Client::Read` method for parallel reads, and can also utilize independent computing resources when `data_boost` is set."],["This page contains documentation for several versions of the `ReadPartition` class, ranging from version 2.11.0 up to the latest release candidate 2.37.0-rc."],["The class `ReadPartition` provides constructors to create new instances and also has functions to view the `TableName`, `ColumnNames` and `ReadOptions` set."]]],[]]
