{"record":{"id":"6f42f253f4e8834c","repo":"vitessio/vitess","slug":"error-running-vtexplain-w","errorCode":null,"errorMessage":"error running vtexplain: %w","messagePattern":"error running vtexplain: %w","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"go/vt/vtadmin/api.go","lineNumber":2818,"sourceCode":"\t}(c)\n\n\twg.Wait()\n\n\tif er.HasErrors() {\n\t\treturn nil, er.Error()\n\t}\n\n\tts := memorytopo.NewServer(ctx, vtexplain.Cell)\n\tsrvTopoCounts := stats.NewCountersWithSingleLabel(\"\", \"Resilient srvtopo server operations\", \"type\")\n\tvte, err := vtexplain.Init(ctx, api.env, ts, srvVSchema, schema, shardMap, &vtexplain.Options{ReplicationMode: \"ROW\"}, srvTopoCounts)\n\tif err != nil {\n\t\treturn nil, fmt.Errorf(\"error initilaizing vtexplain: %w\", err)\n\t}\n\tdefer vte.Stop()\n\n\tplans, err := vte.Run(req.Sql)\n\tif err != nil {\n\t\treturn nil, fmt.Errorf(\"error running vtexplain: %w\", err)\n\t}\n\n\tresponse, err := vte.ExplainsAsText(plans)\n\tif err != nil {\n\t\treturn nil, fmt.Errorf(\"error converting vtexplain to text output: %w\", err)\n\t}\n\n\treturn &vtadminpb.VTExplainResponse{\n\t\tResponse: response,\n\t}, nil\n}\n\n// WorkflowDelete is part of the vtadminpb.VTAdminServer interface.\nfunc (api *API) WorkflowDelete(ctx context.Context, req *vtadminpb.WorkflowDeleteRequest) (*vtctldatapb.WorkflowDeleteResponse, error) {\n\tspan, ctx := trace.NewSpan(ctx, \"API.WorkflowDelete\")\n\tdefer span.Finish()\n\n\tspan.Annotate(\"cluster_id\", req.ClusterId)","sourceCodeStart":2800,"sourceCodeEnd":2836,"githubUrl":"https://github.com/vitessio/vitess/blob/01a25a7d176f94613b8d59d799f438380a8760e4/go/vt/vtadmin/api.go#L2800-L2836","documentation":"The vtexplain engine initialized successfully but failed while executing/analyzing the supplied SQL (vte.Run). VTEXplain simulates routing and execution against the in-memory topology; SQL that cannot be parsed, routed, or planned produces this error.","triggerScenarios":"vte.Run(req.Sql) returns an error: SQL syntax errors, unsupported statements, vindex lookup failures during routing simulation, or missing tables referenced by the query.","commonSituations":"User submits a query with a syntax error; query references a table absent from the keyspace's schema; query uses constructs vtexplain cannot simulate (e.g. certain DDL/admin statements); vindex columns mismatched in the query.","solutions":["Check the SQL for syntax errors by running it directly through vtgate or mysql.","Verify all tables referenced exist in the keyspace schema (GetSchema output).","Simplify or rewrite the statement to a supported form; start with a simple SELECT to confirm vtexplain works.","Inspect the wrapped error for the planner's message (e.g. 'table not found', 'vindex not found') and address it in schema/vschema.","Update Vitess if the query uses a newly supported construct not in this version."],"exampleFix":"// before\n\"SELCT * FROM users\"\n// after\n\"SELECT * FROM users\"","handlingStrategy":"validation","validationCode":"// Parse the SQL before submitting to vtexplain\nif _, err := sqlparser.Parse(sql); err != nil {\n    return fmt.Errorf(\"invalid SQL: %w\", err)\n}","typeGuard":null,"tryCatchPattern":"plans, err := vte.Run(req.Sql)\nif err != nil {\n    return vterrors.Wrapf(err, vtrpcpb.Code_INVALID_ARGUMENT, \"error running vtexplain for SQL %q\", req.Sql)\n}","preventionTips":["Validate user-submitted SQL with sqlparser.Parse (or run it through vtgate EXPLAIN) before calling vtexplain.","Restrict vtexplain UI inputs to supported statement types (SELECT/INSERT/UPDATE/DELETE).","Keep referenced tables present in the keyspace schema; lint queries against the schema."],"tags":["vtadmin","vtexplain","sql","query-planning"],"backgroundTag":"sql-parse-error","analyzedSha":"01a25a7d176f94613b8d59d799f438380a8760e4","analyzedAt":"2026-09-01T17:28:30.605Z","contentChangedAt":null,"schemaVersion":2},"datasetVersion":"2026-09-08T10:18:20.063Z"}