{"record":{"id":"ca3905711c7fce35","repo":"jackc/pgx","slug":"d-is-less-than-minimum-value-for-uint8-ca3905","errorCode":null,"errorMessage":"%d is less than minimum value for uint8","messagePattern":"(.+?) is less than minimum value for uint8","errorType":"validation","errorClass":null,"httpStatus":null,"severity":"error","filePath":"pgtype/int.go","lineNumber":346,"sourceCode":"\nfunc (scanPlanBinaryInt2ToUint8) Scan(src []byte, dst any) error {\n\tif src == nil {\n\t\treturn fmt.Errorf(\"cannot scan NULL into %T\", dst)\n\t}\n\n\traw, err := pgio.Uint16Exact(src)\n\tif err != nil {\n\t\treturn fmt.Errorf(\"uint2: %w\", err)\n\t}\n\n\tp, ok := (dst).(*uint8)\n\tif !ok {\n\t\treturn ErrScanTargetTypeChanged\n\t}\n\n\tn := int16(raw)\n\tif n < 0 {\n\t\treturn fmt.Errorf(\"%d is less than minimum value for uint8\", n)\n\t}\n\n\tif n > math.MaxUint8 {\n\t\treturn fmt.Errorf(\"%d is greater than maximum value for uint8\", n)\n\t}\n\n\t*p = uint8(n)\n\n\treturn nil\n}\n\ntype scanPlanBinaryInt2ToInt16 struct{}\n\nfunc (scanPlanBinaryInt2ToInt16) Scan(src []byte, dst any) error {\n\tif src == nil {\n\t\treturn fmt.Errorf(\"cannot scan NULL into %T\", dst)\n\t}\n","sourceCodeStart":328,"sourceCodeEnd":364,"githubUrl":"https://github.com/jackc/pgx/blob/ec1a0befd22592cffffdeeb0a50311b506372f4c/pgtype/int.go#L328-L364","documentation":"scanPlanBinaryInt2ToUint8 decoded a negative int2 value; unsigned uint8 targets cannot hold negatives, so the value is rejected before conversion.","triggerScenarios":"Thrown at pgtype/int.go:346 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":["Scan into a signed Go type (int16/int32)","Use abs() or constrain the column to non-negative values"],"exampleFix":null,"handlingStrategy":"validation","validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"ec1a0befd22592cffffdeeb0a50311b506372f4c","analyzedAt":"2026-08-04T22:52:11.263Z","contentChangedAt":null,"schemaVersion":2},"datasetVersion":"2026-09-23T08:17:48.524Z"}