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 2025-03-21 UTC."],[[["This page provides documentation for the `ResultSourceInterface` in the Google Cloud Spanner C++ client library, covering versions from 2.11.0 up to the latest release candidate 2.37.0-rc."],["The `ResultSourceInterface` defines how to interact with `RowStream` objects, which are streams of rows returned from Spanner client operations like `Read()` and `ExecuteQuery()`."],["The `NextRow()` function is used to retrieve the next row from the stream, and it returns a `StatusOr\u003cspanner::Row\u003e` that may contain an error or indicate the end of the stream."],["The `Metadata()` and `Stats()` functions allow users to retrieve result set metadata and statistics, respectively, providing information like field types, transaction IDs, row counts, and query plans."]]],[]]
