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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-07-08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 details the `ResultSourceInterface` for the Google Cloud Spanner C++ client library, outlining its role in handling `RowStream` data."],["The `ResultSourceInterface` is vital for processing data returned from `spanner::Client::Read()` or `spanner::Client::ExecuteQuery()`, which is presented as a stream of `Rows`."],["The `NextRow()` function retrieves the next row in the stream, indicating errors with `StatusOr` or the end of the stream with an empty `spanner::Row`."],["Metadata about the result set, like field types and the transaction ID, can be accessed via the `Metadata()` function."],["The `Stats()` function provides information about the result set, such as row count and the query plan, referencing additional details in the Google Spanner documentation."]]],[]]
