{"id":"0f7d034dc5567f55","repo":"jackc/pgx","slug":"unexpected-pipeline-result-t","errorCode":null,"errorMessage":"unexpected pipeline result: %T","messagePattern":"unexpected pipeline result: %T","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"batch.go","lineNumber":319,"sourceCode":"\t\treturn pgconn.CommandTag{}, br.err\n\t}\n\n\tquery, arguments, err := br.nextQueryAndArgs()\n\tif err != nil {\n\t\treturn pgconn.CommandTag{}, err\n\t}\n\n\tresults, err := br.pipeline.GetResults()\n\tif err != nil {\n\t\tbr.err = err\n\t\treturn pgconn.CommandTag{}, br.err\n\t}\n\tvar commandTag pgconn.CommandTag\n\tswitch results := results.(type) {\n\tcase *pgconn.ResultReader:\n\t\tcommandTag, br.err = results.Close()\n\tdefault:\n\t\treturn pgconn.CommandTag{}, fmt.Errorf(\"unexpected pipeline result: %T\", results)\n\t}\n\n\tif br.conn.batchTracer != nil {\n\t\tbr.conn.batchTracer.TraceBatchQuery(br.ctx, br.conn, TraceBatchQueryData{\n\t\t\tSQL:        query,\n\t\t\tArgs:       arguments,\n\t\t\tCommandTag: commandTag,\n\t\t\tErr:        br.err,\n\t\t})\n\t}\n\n\treturn commandTag, br.err\n}\n\n// Query reads the results from the next query in the batch as if the query has been sent with Query.\nfunc (br *pipelineBatchResults) Query() (Rows, error) {\n\tif br.err != nil {\n\t\treturn &baseRows{err: br.err, closed: true}, br.err","sourceCodeStart":301,"sourceCodeEnd":337,"githubUrl":"https://github.com/jackc/pgx/blob/ec1a0befd22592cffffdeeb0a50311b506372f4c/batch.go#L301-L337","documentation":"Error \"unexpected pipeline result: %T\" thrown in jackc/pgx.","triggerScenarios":"Thrown at batch.go:319 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":[],"exampleFix":null,"handlingStrategy":null,"validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"analyzedSha":"ec1a0befd22592cffffdeeb0a50311b506372f4c","analyzedAt":"2026-08-04T22:52:11.263Z","schemaVersion":2}