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"]],[["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 2025-03-14 UTC."],[[["This document details the `ResultSourceInterface` for Google Cloud Spanner's C++ client library, specifically for version 2.27.0."],["The `ResultSourceInterface` is a crucial part of the `RowStream` class, which streams `Rows` after `spanner::Client::Read()` or `spanner::Client::ExecuteQuery()` is used."],["The `NextRow()` function is used to return the next row from the stream, or an error `StatusOr` if the stream is interrupted."],["`Metadata()` provides crucial information about the result set, including the field types and transaction ID."],["`Stats()` provides information about the result set statistics, like row count and query plan, for deeper insights into the results."]]],[]]
