{"id":"43d0a8a282a0cfdc","repo":"jackc/pgx","slug":"cannot-losslessly-convert-v-to-int64-43d0a8","errorCode":null,"errorMessage":"cannot losslessly convert %v to int64","messagePattern":"cannot losslessly convert (.+?) to int64","errorType":"validation","errorClass":null,"httpStatus":null,"severity":"error","filePath":"pgtype/float8.go","lineNumber":296,"sourceCode":"type scanPlanBinaryFloat8ToInt64Scanner struct{}\n\nfunc (scanPlanBinaryFloat8ToInt64Scanner) Scan(src []byte, dst any) error {\n\ts := (dst).(Int64Scanner)\n\n\tif src == nil {\n\t\treturn s.ScanInt64(Int8{})\n\t}\n\n\traw, err := pgio.Uint64Exact(src)\n\tif err != nil {\n\t\treturn fmt.Errorf(\"float8: %w\", err)\n\t}\n\n\tui64 := int64(raw)\n\tf64 := math.Float64frombits(uint64(ui64))\n\ti64 := int64(f64)\n\tif f64 != float64(i64) {\n\t\treturn fmt.Errorf(\"cannot losslessly convert %v to int64\", f64)\n\t}\n\n\treturn s.ScanInt64(Int8{Int64: i64, Valid: true})\n}\n\ntype scanPlanBinaryFloat8ToTextScanner struct{}\n\nfunc (scanPlanBinaryFloat8ToTextScanner) Scan(src []byte, dst any) error {\n\ts := (dst).(TextScanner)\n\n\tif src == nil {\n\t\treturn s.ScanText(Text{})\n\t}\n\n\traw, err := pgio.Uint64Exact(src)\n\tif err != nil {\n\t\treturn fmt.Errorf(\"float8: %w\", err)\n\t}","sourceCodeStart":278,"sourceCodeEnd":314,"githubUrl":"https://github.com/jackc/pgx/blob/ec1a0befd22592cffffdeeb0a50311b506372f4c/pgtype/float8.go#L278-L314","documentation":"Error \"cannot losslessly convert %v to int64\" thrown in jackc/pgx.","triggerScenarios":"Thrown at pgtype/float8.go:296 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}