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John Bodley edited comment on CALCITE-4727 at 8/11/21, 10:35 PM: ----------------------------------------------------------------- For context here's the error I get when trying to connect to Tableau when I exclude the `response` property in the {{RpcMetadata}} object. {code:java} An error occurred while communicating with Other Databases (JDBC) Bad Connection: Tableau could not connect to the data source. Error Code: FAB9A2C5 org.apache.calcite.avatica.com.fasterxml.jackson.databind.exc.InvalidTypeIdException: Missing type id when trying to resolve subtype of [simple type, class org.apache.calcite.avatica.remote.Service$RpcMetadataResponse]: missing type id property 'response' (for POJO property 'rpcMetadata') at [Source: (String)"{ "connectionId": "1d919ce0-c430-42b6-b5d9-8cfeb532fdb0", "rpcMetadata": {}, "firstFrame": { "rows": [ [ "VIEW" ] ], "done": true, "offset": 0 }, "updateCount": -1, "response": "resultSet" } "; line: 14, column: 17] (through reference chain: org.apache.calcite.avatica.remote.Service$ResultSetResponse["rpcMetadata"]) {code} was (Author: john.bod...@gmail.com): For context here's the error I get when trying to connect to Tableau when I exclude the `response` property in the {{RpcMetadata}} object. {code:java} An error occurred while communicating with Other Databases (JDBC) Bad Connection: Tableau could not connect to the data source. Error Code: FAB9A2C5 org.apache.calcite.avatica.com.fasterxml.jackson.databind.exc.InvalidTypeIdException: Missing type id when trying to resolve subtype of [simple type, class org.apache.calcite.avatica.remote.Service$RpcMetadataResponse]: missing type id property 'response' (for POJO property 'rpcMetadata') at [Source: (String)"{ "connectionId": "1d919ce0-c430-42b6-b5d9-8cfeb532fdb0", "rpcMetadata": {}, "firstFrame": { "rows": [ [ "VIEW" ] ], "done": true, "offset": 0 }, "updateCount": -1, "response": "resultSet" } "; line: 14, column: 17] (through reference chain: org.apache.calcite.avatica.remote.Service$ResultSetResponse["rpcMetadata"]) {code} > Possible incorrect RpcMetadata JSON reference > --------------------------------------------- > > Key: CALCITE-4727 > URL: https://issues.apache.org/jira/browse/CALCITE-4727 > Project: Calcite > Issue Type: Bug > Components: avatica > Reporter: John Bodley > Priority: Trivial > > Per [CALCITE-4367|https://issues.apache.org/jira/browse/CALCITE-4367] the > RpMetadata JSON reference is missing the required `response` field. As > discussed in the issue and per > [here|https://github.com/apache/calcite-avatica/blob/89e0deb510311b85b8c8bacde6d2ff70c309930e/core/src/main/java/org/apache/calcite/avatica/remote/Service.java#L2668-L2678], > though this isn't an actual response is does seem to expect a response type > signature. -- This message was sent by Atlassian Jira (v8.3.4#803005)