{"id":"8fb07070cb222bb2","repo":"jackc/pgx","slug":"s-w","errorCode":null,"errorMessage":"%s: %w","messagePattern":"%s: %w","errorType":"exception","errorClass":"perDialConnectError","httpStatus":null,"severity":"error","filePath":"pgconn/pgconn.go","lineNumber":326,"sourceCode":"\t}\n\n\treturn nil, allErrors\n}\n\n// connectOne makes one connection attempt to a single host.\nfunc connectOne(ctx context.Context, config *Config, connectConfig *connectOneConfig,\n\tignoreNotPreferredErr bool,\n) (*PgConn, error) {\n\tpgConn := new(PgConn)\n\tpgConn.config = config\n\tpgConn.cleanupDone = make(chan struct{})\n\tpgConn.customData = make(map[string]any)\n\n\tvar err error\n\n\tnewPerDialConnectError := func(msg string, err error) *perDialConnectError {\n\t\terr = normalizeTimeoutError(ctx, err)\n\t\te := &perDialConnectError{address: connectConfig.address, originalHostname: connectConfig.originalHostname, err: fmt.Errorf(\"%s: %w\", msg, err)}\n\t\treturn e\n\t}\n\n\tmaxProtocolVersion, err := parseProtocolVersion(config.MaxProtocolVersion)\n\tif err != nil {\n\t\treturn nil, newPerDialConnectError(\"invalid max_protocol_version\", err)\n\t}\n\tminProtocolVersion, err := parseProtocolVersion(config.MinProtocolVersion)\n\tif err != nil {\n\t\treturn nil, newPerDialConnectError(\"invalid min_protocol_version\", err)\n\t}\n\n\tpgConn.conn, err = config.DialFunc(ctx, connectConfig.network, connectConfig.address)\n\tif err != nil {\n\t\treturn nil, newPerDialConnectError(\"dial error\", err)\n\t}\n\n\tif connectConfig.tlsConfig != nil {","sourceCodeStart":308,"sourceCodeEnd":344,"githubUrl":"https://github.com/jackc/pgx/blob/ec1a0befd22592cffffdeeb0a50311b506372f4c/pgconn/pgconn.go#L308-L344","documentation":"Error \"%s: %w\" thrown in jackc/pgx.","triggerScenarios":"Thrown at pgconn/pgconn.go:326 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}