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https://issues.apache.org/jira/browse/DRILL-3501?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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徐波 updated DRILL-3501:
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Component/s: Storage - HBase
> 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
> Components: Storage - HBase
> 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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