[ https://issues.apache.org/jira/browse/DRILL-2118?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14297360#comment-14297360 ]
Hanifi Gunes commented on DRILL-2118: ------------------------------------- [~mehant] please review > 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 > Attachments: DRILL-2118.1.patch.txt > > > 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 the query failed > instead. -- This message was sent by Atlassian JIRA (v6.3.4#6332)