{"id":"61d6d7cd6e46c2e9","repo":"jackc/pgx","slug":"unknown-format-code-v","errorCode":null,"errorMessage":"unknown format code: %v","messagePattern":"unknown format code: (.+?)","errorType":"validation","errorClass":null,"httpStatus":null,"severity":"error","filePath":"pgtype/jsonb.go","lineNumber":101,"sourceCode":"\tswitch format {\n\tcase BinaryFormatCode:\n\t\tif len(src) == 0 {\n\t\t\treturn nil, fmt.Errorf(\"jsonb too short\")\n\t\t}\n\n\t\tif src[0] != 1 {\n\t\t\treturn nil, fmt.Errorf(\"unknown jsonb version number %d\", src[0])\n\t\t}\n\n\t\tdstBuf := make([]byte, len(src)-1)\n\t\tcopy(dstBuf, src[1:])\n\t\treturn dstBuf, nil\n\tcase TextFormatCode:\n\t\tdstBuf := make([]byte, len(src))\n\t\tcopy(dstBuf, src)\n\t\treturn dstBuf, nil\n\tdefault:\n\t\treturn nil, fmt.Errorf(\"unknown format code: %v\", format)\n\t}\n}\n\nfunc (c *JSONBCodec) DecodeValue(m *Map, oid uint32, format int16, src []byte) (any, error) {\n\tif src == nil {\n\t\treturn nil, nil\n\t}\n\n\tswitch format {\n\tcase BinaryFormatCode:\n\t\tif len(src) == 0 {\n\t\t\treturn nil, fmt.Errorf(\"jsonb too short\")\n\t\t}\n\n\t\tif src[0] != 1 {\n\t\t\treturn nil, fmt.Errorf(\"unknown jsonb version number %d\", src[0])\n\t\t}\n","sourceCodeStart":83,"sourceCodeEnd":119,"githubUrl":"https://github.com/jackc/pgx/blob/ec1a0befd22592cffffdeeb0a50311b506372f4c/pgtype/jsonb.go#L83-L119","documentation":"Error \"unknown format code: %v\" thrown in jackc/pgx.","triggerScenarios":"Thrown at pgtype/jsonb.go:101 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}