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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-22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 provides the interface definition for \u003ccode\u003eRowStream\u003c/code\u003e implementations, which are used to process streams of \u003ccode\u003eRows\u003c/code\u003e from Cloud Spanner operations.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eRowStream\u003c/code\u003e class is utilized for streams of data from operations like \u003ccode\u003espanner::Client::Read()\u003c/code\u003e and \u003ccode\u003espanner::Client::ExecuteQuery()\u003c/code\u003e, offering various RPC-dependent implementations.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eNextRow()\u003c/code\u003e function retrieves the subsequent row in the stream, indicating any stream interruption via an error within a \u003ccode\u003eStatusOr\u003c/code\u003e or signaling the stream's end with an empty \u003ccode\u003espanner::Row\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003e\u003ccode\u003eMetadata()\u003c/code\u003e gives information about the result set, including field types and the transaction ID, aligning with Google Spanner's result set metadata specifications.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eStats()\u003c/code\u003e function provides details about the result set's statistics, such as row count and query execution plan, matching the Google Spanner result set statistics reference.\u003c/p\u003e\n"]]],[],null,[]]
