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From 徐波 (JIRA) <j...@apache.org>
Subject [jira] [Updated] (DRILL-3501) No vector has initialized when the value of qualifier is null while using Hbase storage
Date Thu, 16 Jul 2015 06:05:04 GMT

     [ https://issues.apache.org/jira/browse/DRILL-3501?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

徐波 updated DRILL-3501:
----------------------
    Attachment: 0001-init-vector-in-setup.patch

init vector in setup method

> No vector has initialized when the value of qualifier is null while using Hbase storage
> ---------------------------------------------------------------------------------------
>
>                 Key: DRILL-3501
>                 URL: https://issues.apache.org/jira/browse/DRILL-3501
>             Project: Apache Drill
>          Issue Type: Bug
>    Affects Versions: 0.9.0, 1.0.0, 1.1.0
>            Reporter: 徐波
>         Attachments: 0001-init-vector-in-setup.patch
>
>
> drill throws exception while querying from hbase:
> Failure while reading vector.  Expected vector class of org.apache.drill.exec.vector.NullableVarBinaryVector
but was holding vector class org.apache.drill.exec.vector.NullableIntVector.
> My sql:
> select t2.A.A1, t2.A.B2 from hdfs.root.`table1` as t1 inner join hbase.`table2` as t2
on table1.c1=t2.c1
> Now the table2 has 3 regions and A.B2 on the last region is null while containing values
on the other regions. The node creates a NullableIntVector while quering from the last region,but
the nodes create a NullableVarBinaryVector while quering from the other regions.So drill throws
Exception on the join node which get two type of vector for one column.
> I recommend that we should initialize vector for selected columns in the  method named
'org.apache.drill.exec.store.hbase.HBaseRecordReader.setup'



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