{"id":"05ee4959b094a0b5","repo":"jackc/pgx","slug":"unknown-format-code-d","errorCode":null,"errorMessage":"unknown format code %d","messagePattern":"unknown format code (.+?)","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"pgtype/array_codec.go","lineNumber":375,"sourceCode":"func (spac *scanPlanArrayCodec) Scan(src []byte, dst any) error {\n\tc := spac.arrayCodec\n\tm := spac.m\n\toid := spac.oid\n\tformatCode := spac.formatCode\n\n\tarray := dst.(ArraySetter)\n\n\tif src == nil {\n\t\treturn array.SetDimensions(nil)\n\t}\n\n\tswitch formatCode {\n\tcase BinaryFormatCode:\n\t\treturn c.decodeBinary(m, oid, src, array)\n\tcase TextFormatCode:\n\t\treturn c.decodeText(m, oid, src, array)\n\tdefault:\n\t\treturn fmt.Errorf(\"unknown format code %d\", formatCode)\n\t}\n}\n\nfunc (c *ArrayCodec) DecodeDatabaseSQLValue(m *Map, oid uint32, format int16, src []byte) (driver.Value, error) {\n\tif src == nil {\n\t\treturn nil, nil\n\t}\n\n\tswitch format {\n\tcase TextFormatCode:\n\t\treturn string(src), nil\n\tcase BinaryFormatCode:\n\t\tbuf := make([]byte, len(src))\n\t\tcopy(buf, src)\n\t\treturn buf, nil\n\tdefault:\n\t\treturn nil, fmt.Errorf(\"unknown format code %d\", format)\n\t}","sourceCodeStart":357,"sourceCodeEnd":393,"githubUrl":"https://github.com/jackc/pgx/blob/ec1a0befd22592cffffdeeb0a50311b506372f4c/pgtype/array_codec.go#L357-L393","documentation":"Error \"unknown format code %d\" thrown in jackc/pgx.","triggerScenarios":"Thrown at pgtype/array_codec.go:375 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}