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From "Parth Chandra (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (DRILL-2200) Obscure error message from kvgen when the field does not exist in a parquet file
Date Mon, 06 Apr 2015 20:44:12 GMT

     [ https://issues.apache.org/jira/browse/DRILL-2200?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Parth Chandra updated DRILL-2200:
---------------------------------
    Fix Version/s:     (was: 1.0.0)
                   1.1.0

> Obscure error message from kvgen when the field does not exist in a parquet file
> --------------------------------------------------------------------------------
>
>                 Key: DRILL-2200
>                 URL: https://issues.apache.org/jira/browse/DRILL-2200
>             Project: Apache Drill
>          Issue Type: Bug
>          Components: Functions - Drill
>            Reporter: Rahul Challapalli
>            Assignee: Mehant Baid
>            Priority: Minor
>             Fix For: 1.1.0
>
>         Attachments: data.parquet
>
>
> git.commit.id.abbrev=3d863b5
> Json Data Set :
> {code}
> {
>   "id":1,
>   "map": {
>       "map1":{"col1":1, "col2":2}
>   }
> }
> {code}
> Equivalent Parquet File is attached.
> The below response properly indicates the reason for failure
> {code}
> select kvgen(t.map.abcd) from dfs.flatten_operators.`data.json` t;
> Query failed: RemoteRpcException: Failure while running fragment., kvgen function only
supports Simple maps as input [ 9b441359-9f04-4199-8cca-cdc23aaab517 on qa-node191.qa.lab:31010
]
> [ 9b441359-9f04-4199-8cca-cdc23aaab517 on qa-node191.qa.lab:31010 ]
> {code}
> However the same query on an equivalent parquet file returns an obscure error message
> {code}
> select kvgen(t.map.abcd) from `data.parquet` t;
> Query failed: RemoteRpcException: Failure while running fragment., Unable to find holder
type for minorType: LATE [ 9697f4aa-1e8d-4221-8e7f-4d374ffbd916 on qa-node191.qa.lab:31010
]
> [ 9697f4aa-1e8d-4221-8e7f-4d374ffbd916 on qa-node191.qa.lab:31010 ]
> {code}
> However if we apply kvgen on a first level non-existent field we get back a proper error
message even for a parquet file
> {code}
> select kvgen(t.map1) from `data.parquet` t;
> Query failed: RemoteRpcException: Failure while running fragment., kvgen function only
supports Simple maps as input [ 1d1c4ca3-ceda-4320-8ff8-fe08afe32090 on qa-node191.qa.lab:31010
]
> [ 1d1c4ca3-ceda-4320-8ff8-fe08afe32090 on qa-node191.qa.lab:31010 ]
> {code}



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