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, covering versions from 2.11.0 to 2.37.0-rc."],["The `ResultSourceInterface` defines how to manage `RowStream` implementations, which are streams of `Rows` resulting from `spanner::Client::Read()` or `spanner::Client::ExecuteQuery()` operations."],["The `NextRow()` function retrieves the next row in the stream, returning a `StatusOr\u003cspanner::Row\u003e` which either contains the row or an error status, and an empty row indicates the end of the stream."],["`Metadata()` provides information on the result set, such as field types and the transaction ID, as detailed in the `google.spanner.v1#resultsetmetadata` documentation."],["The `Stats()` function can return statistics on the result set, such as the number of rows, and query plan, according to the `google.spanner.v1#resultsetstats` documentation."]]],[]]
