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, specifically for version 2.26.0 and up, providing access to different versions of the interface."],["The `ResultSourceInterface` defines how to interact with `RowStream` objects, which are streams of `Rows` returned from Cloud Spanner read and query operations."],["The `NextRow()` function allows retrieving the next row from the stream, handling potential errors or signaling the end of the stream."],["Metadata about the result set, including field types and transaction IDs, can be accessed via the `Metadata()` function, as detailed in the google.spanner.v1#resultsetmetadata documentation."],["`Stats()` provides statistics about the result set, such as the number of rows and query plan, and is further explained in the google.spanner.v1#resultsetstats documentation."]]],[]]
