{"record":{"id":"f4b05686a63afeba","repo":"dgraph-io/dgraph","slug":"unimplemented-query-type-s","errorCode":null,"errorMessage":"unimplemented query type %s","messagePattern":"unimplemented query type (.+?)","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"graphql/resolve/query_rewriter.go","lineNumber":160,"sourceCode":"\tcase schema.SimilarByIdQuery:\n\t\txid, uid, err := gqlQuery.IDArgValue()\n\t\tif err != nil {\n\t\t\treturn nil, nil, err\n\t\t}\n\t\treturn rewriteAsSimilarByIdQuery(gqlQuery, uid, xid, authRw), nil, nil\n\tcase schema.SimilarByEmbeddingQuery:\n\t\treturn rewriteAsSimilarByEmbeddingQuery(gqlQuery, authRw), nil, nil\n\tcase schema.FilterQuery:\n\t\treturn rewriteAsQuery(gqlQuery, authRw), nil, nil\n\tcase schema.PasswordQuery:\n\t\treturn passwordQuery(gqlQuery, authRw)\n\tcase schema.AggregateQuery:\n\t\treturn aggregateQuery(gqlQuery, authRw), nil, nil\n\tcase schema.EntitiesQuery:\n\t\tqueries, err := entitiesQuery(gqlQuery, authRw)\n\t\treturn queries, nil, err\n\tdefault:\n\t\treturn nil, nil, errors.Errorf(\"unimplemented query type %s\", gqlQuery.QueryType())\n\t}\n}\n\n// entitiesQuery rewrites the Apollo `_entities` Query which is sent from the Apollo gateway to a DQL query.\n// This query is sent to the Dgraph service to resolve types `extended` and defined by this service.\nfunc entitiesQuery(field schema.Query, authRw *authRewriter) ([]*dql.GraphQuery, error) {\n\n\t// Input Argument to the Query is a List of \"__typename\" and \"keyField\" pair.\n\t// For this type Extension:-\n\t// \textend type Product @key(fields: \"upc\") {\n\t// \t\tupc: String @external\n\t// \t\treviews: [Review]\n\t// \t}\n\t// Input to the Query will be\n\t// \"_representations\": [\n\t// \t\t{\n\t// \t\t  \"__typename\": \"Product\",\n\t// \t \t \"upc\": \"B00005N5PF\"","sourceCodeStart":142,"sourceCodeEnd":178,"githubUrl":"https://github.com/dgraph-io/dgraph/blob/759e242be62c91f8d084da06ad0c8d21256d9c07/graphql/resolve/query_rewriter.go#L142-L178","documentation":"Rewrite in the GraphQL query rewriter converts a parsed GraphQL operation into DQL queries. Each query must have a known QueryType (query, aggregate query, entities query, etc.); the default branch means Dgraph encountered a query type it has no rewriter for — usually a new/unknown type or a bug where an operation was classified incorrectly. This is an internal capability limitation surfaced to the caller.","triggerScenarios":"Calling Resolve on a GraphQL request whose operation contains a query whose schema.QueryType() is not one of the handled cases — e.g. a subscription-style or unsupported query kind reaching the rewrite path, or a version mismatch where the schema declares a query type the resolver doesn't implement.","commonSituations":"Running a Dgraph version older than the schema/feature in use (e.g. _entities federation queries added later); custom tooling generating queries Dgraph misclassifies; sending GraphQL operations over endpoints meant only for queries/mutations.","solutions":["Upgrade Dgraph to a version that supports the query type being used","Check the operation being sent and remove/replace unsupported query constructs","Verify the schema only declares query fields Dgraph supports (no foreign/unknown query types)"],"exampleFix":null,"handlingStrategy":"fallback","validationCode":null,"typeGuard":null,"tryCatchPattern":"resp, err := resolver.Resolve(ctx, req)\nif err != nil && strings.Contains(err.Error(), \"unimplemented query type\") {\n  log.Printf(\"unsupported query type sent: %+v\", req.Query)\n  // return a clear client error or fall back to a supported endpoint\n}","preventionTips":["Keep Dgraph version in sync with schema features in use","Only send standard Dgraph-supported operations","Add integration tests covering every query shape the client uses"],"tags":["graphql","query-rewriter","unimplemented","dgraph"],"backgroundTag":"unimplemented-query-type","analyzedSha":"759e242be62c91f8d084da06ad0c8d21256d9c07","analyzedAt":"2026-09-01T14:42:12.034Z","contentChangedAt":null,"schemaVersion":2},"datasetVersion":"2026-09-08T10:18:20.063Z"}