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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-22 UTC."],[[["\u003cp\u003eThis document details the \u003ccode\u003eResultSourceInterface\u003c/code\u003e for Google Cloud Spanner, specifically for version 2.26.0 and up, providing access to different versions of the interface.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eResultSourceInterface\u003c/code\u003e defines how to interact with \u003ccode\u003eRowStream\u003c/code\u003e objects, which are streams of \u003ccode\u003eRows\u003c/code\u003e returned from Cloud Spanner read and query operations.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eNextRow()\u003c/code\u003e function allows retrieving the next row from the stream, handling potential errors or signaling the end of the stream.\u003c/p\u003e\n"],["\u003cp\u003eMetadata about the result set, including field types and transaction IDs, can be accessed via the \u003ccode\u003eMetadata()\u003c/code\u003e function, as detailed in the google.spanner.v1#resultsetmetadata documentation.\u003c/p\u003e\n"],["\u003cp\u003e\u003ccode\u003eStats()\u003c/code\u003e 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.\u003c/p\u003e\n"]]],[],null,[]]
