drill-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Hanifi Gunes (JIRA)" <j...@apache.org>
Subject [jira] [Created] (DRILL-2118) Improve error message to inform the user if mappify/kvgen fails due to ClassCastException
Date Thu, 29 Jan 2015 19:04:34 GMT
Hanifi Gunes created DRILL-2118:
-----------------------------------

             Summary: Improve error message to inform the user if mappify/kvgen fails due
to ClassCastException
                 Key: DRILL-2118
                 URL: https://issues.apache.org/jira/browse/DRILL-2118
             Project: Apache Drill
          Issue Type: Improvement
            Reporter: Hanifi Gunes
            Assignee: Hanifi Gunes
            Priority: Minor


Currently mappify throws a non-user friendly error message when the input map consists of
heterogenous value types. The proposal is to improve the error message to inform user about
the usage and root cause of the failure in a non-technical dialect.

Running
{code}
select kvgen(t.m) from ex.json t
{code}

over

{code:title=ex.json}
{m:{a:1}}
{m:{b:-1.0}}
{code}

throws 

{code}
Query failed: Query failed: Failure while running fragment., org.apache.drill.exec.vector.complex.impl.NullableFloat8WriterImpl
cannot be cast to org.apache.drill.exec.vector.complex.impl.NullableIntWriterImpl
{code}

We should inform the user with an intelligible reason why query failed instead.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Mime
View raw message