if the stream is interrupted due to a failure the StatusOr<spanner::Row> contains the error. The function returns a successful StatusOr<> with an empty spanner::Row to indicate end-of-stream.
Metadata()
Returns metadata about the result set, such as the field types and the transaction id created by the request.
[[["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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-07-08 UTC."],[[["This document provides the interface definition for `RowStream` implementations, which are used to stream rows from Cloud Spanner."],["It includes a list of available versions of the Spanner C++ library, ranging from the latest release candidate 2.37.0-rc down to version 2.11.0, and this page corresponds to version 2.19.0."],["The `RowStream` class enables retrieval of `Rows` from `spanner::Client::Read()` or `spanner::Client::ExecuteQuery()` and can also be mocked for testing purposes."],["Key functions include `NextRow()`, which retrieves the next row in the stream, and also provides metadata and stats regarding the result set from the functions `Metadata()` and `Stats()`."],["The function `NextRow()` returns a StatusOr object, which contains the error if the stream fails or an empty Row if the end of the stream is reached."]]],[]]
