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From "Chun Chang (JIRA)" <j...@apache.org>
Subject [jira] [Created] (DRILL-2201) clear error message on join on complex type
Date Tue, 10 Feb 2015 19:26:15 GMT
Chun Chang created DRILL-2201:
---------------------------------

             Summary: clear error message on join on complex type
                 Key: DRILL-2201
                 URL: https://issues.apache.org/jira/browse/DRILL-2201
             Project: Apache Drill
          Issue Type: Bug
          Components: Execution - Data Types
    Affects Versions: 0.8.0
            Reporter: Chun Chang
            Assignee: Daniel Barclay (Drill/MapR)
            Priority: Minor


#Mon Feb 09 15:58:57 EST 2015
git.commit.id.abbrev=3d863b5

Dataset can be downloaded from 
https://s3.amazonaws.com/apache-drill/files/complex.json.gz

We do not support join condition on complex type. But the error message is not clear to end
user.

{code}
0: jdbc:drill:schema=dfs.drillTestDirComplexJ> select a.id from `complex.json` a left outer
join `complex.json` b on a.oooa=b.oooa;
Query failed: RemoteRpcException: Failure while running fragment., Failure while trying to
materialize incoming schema.  Errors:

Error in expression at index 0.  Error: Missing function implementation: [hash(MAP-REQUIRED)].
 Full expression: null.. [ 6a61d61f-670f-4ddc-bb1d-09a47f49f38e on qa-node120.qa.lab:31010
]
[ 6a61d61f-670f-4ddc-bb1d-09a47f49f38e on qa-node120.qa.lab:31010 ]


Error: exception while executing query: Failure while executing query. (state=,code=0)
{code}

Here oooa is a complex type:

{code}
{
    "oooa": {
        "oa": {
            "oab": {
                "oabc": [
                    {
                        "rowId": 1
                    },
                    {
                        "rowValue1": 1,
                        "rowValue2": 1
                    }
                ]
            }
        }
    }
}
{code}



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