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 webpage provides documentation for the `ResultSourceInterface` in the Google Cloud Spanner C++ library, with a focus on version 2.13.0."],["It lists various versions of the library, including the latest release candidate (2.37.0-rc), and offers links to documentation for versions from 2.11.0 up to 2.36.0."],["The `ResultSourceInterface` defines how to interact with `RowStream` objects, which represent streams of `Rows` from `spanner::Client::Read()` or `spanner::Client::ExecuteQuery()` operations."],["Key functions of `ResultSourceInterface` include `NextRow()`, which retrieves the next row in the stream and handles potential errors, as well as functions to get the `Metadata()` and `Stats()` regarding the result set."],["The documentation links out to the `RowStream`, `Client`, and `StatusOr` documentation, along with links to the Spanner RPC documentation about metadata and stats."]]],[]]
