{"record":{"id":"9e0eb025df828c1f","repo":"jackc/pgx","slug":"missing-lower-bound-instead-got-v","errorCode":null,"errorMessage":"missing lower bound, instead got: %v","messagePattern":"missing lower bound, instead got: (.+?)","errorType":"validation","errorClass":null,"httpStatus":null,"severity":"error","filePath":"pgtype/range.go","lineNumber":52,"sourceCode":"\t\tutr.UpperType = Empty\n\t\treturn utr, nil\n\t}\n\n\tbuf := bytes.NewBufferString(src)\n\n\tskipWhitespace(buf)\n\n\tr, _, err := buf.ReadRune()\n\tif err != nil {\n\t\treturn nil, fmt.Errorf(\"invalid lower bound: %w\", err)\n\t}\n\tswitch r {\n\tcase '(':\n\t\tutr.LowerType = Exclusive\n\tcase '[':\n\t\tutr.LowerType = Inclusive\n\tdefault:\n\t\treturn nil, fmt.Errorf(\"missing lower bound, instead got: %v\", string(r))\n\t}\n\n\tr, _, err = buf.ReadRune()\n\tif err != nil {\n\t\treturn nil, fmt.Errorf(\"invalid lower value: %w\", err)\n\t}\n\tbuf.UnreadRune()\n\n\tif r == ',' {\n\t\tutr.LowerType = Unbounded\n\t} else {\n\t\tutr.Lower, err = rangeParseValue(buf)\n\t\tif err != nil {\n\t\t\treturn nil, fmt.Errorf(\"invalid lower value: %w\", err)\n\t\t}\n\t}\n\n\tr, _, err = buf.ReadRune()","sourceCodeStart":34,"sourceCodeEnd":70,"githubUrl":"https://github.com/jackc/pgx/blob/ec1a0befd22592cffffdeeb0a50311b506372f4c/pgtype/range.go#L34-L70","documentation":"The first non-whitespace character of a range literal must be '(' (exclusive) or '[' (inclusive), but a different character was read. The offending character is included so the caller can see exactly what started the string instead of a lower bound bracket.","triggerScenarios":"Thrown at pgtype/range.go:52 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":["Ensure the range literal starts with '(' or '[' after optional leading whitespace","Normalize the value through the database before scanning","Pre-validate range strings against PostgreSQL's range text grammar"],"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"}