{"id":"9b77d6ca0e4eadb2","repo":"jackc/pgx","slug":"extended-protocol-limited-to-v-parameters","errorCode":null,"errorMessage":"extended protocol limited to %v parameters","messagePattern":"extended protocol limited to (.+?) parameters","errorType":"validation","errorClass":null,"httpStatus":null,"severity":"error","filePath":"pgconn/pgconn.go","lineNumber":1345,"sourceCode":"\n\treturn result\n}\n\nfunc (pgConn *PgConn) execExtendedPrefix(ctx context.Context, paramValues [][]byte) *ResultReader {\n\tpgConn.resultReader = ResultReader{\n\t\tpgConn: pgConn,\n\t\tctx:    ctx,\n\t}\n\tresult := &pgConn.resultReader\n\n\tif err := pgConn.lock(); err != nil {\n\t\tresult.concludeCommand(CommandTag{}, err)\n\t\tresult.closed = true\n\t\treturn result\n\t}\n\n\tif len(paramValues) > math.MaxUint16 {\n\t\tresult.concludeCommand(CommandTag{}, fmt.Errorf(\"extended protocol limited to %v parameters\", math.MaxUint16))\n\t\tresult.closed = true\n\t\tpgConn.unlock()\n\t\treturn result\n\t}\n\n\tif ctx != context.Background() {\n\t\tselect {\n\t\tcase <-ctx.Done():\n\t\t\tresult.concludeCommand(CommandTag{}, newContextAlreadyDoneError(ctx))\n\t\t\tresult.closed = true\n\t\t\tpgConn.unlock()\n\t\t\treturn result\n\t\tdefault:\n\t\t}\n\t\tpgConn.contextWatcher.Watch(ctx)\n\t}\n\n\treturn result","sourceCodeStart":1327,"sourceCodeEnd":1363,"githubUrl":"https://github.com/jackc/pgx/blob/ec1a0befd22592cffffdeeb0a50311b506372f4c/pgconn/pgconn.go#L1327-L1363","documentation":"Error \"extended protocol limited to %v parameters\" thrown in jackc/pgx.","triggerScenarios":"Thrown at pgconn/pgconn.go:1345 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}