[teiid-issues] [JBoss JIRA] (TEIID-3929) Accumulo does not return null values
Steven Hawkins (JIRA)
issues at jboss.org
Fri Jan 29 14:25:00 EST 2016
[ https://issues.jboss.org/browse/TEIID-3929?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13156653#comment-13156653 ]
Steven Hawkins commented on TEIID-3929:
---------------------------------------
No he's saying that if there are any null values for ByteNum, then SELECT ByteNum FROM SMALLA won't return them.
> Accumulo does not return null values
> ------------------------------------
>
> Key: TEIID-3929
> URL: https://issues.jboss.org/browse/TEIID-3929
> Project: Teiid
> Issue Type: Bug
> Components: Misc. Connectors
> Affects Versions: 8.12.3
> Reporter: Jan Stastny
> Assignee: Ramesh Reddy
> Fix For: 8.12.x
>
>
> Accumulo doesn't return null values when a whole 'column' is being selected.
> For a command in accumulo shell like:
> {code:plain}
> scan -c name:BYTENUM
> {code}
> Accumulo returns only non-empty values, this is expected behaviour.
> Equivalent query in Teiid would be:
> {code:sql}
> SELECT ByteNum FROM SmallA
> {code}
> Which returns the same results as Accumulo does. That means, no NULL values, if there are rowids without specified column families/qualifiers missing. But when a user has his schema defined in a vdb, he probably expects, that he will get as many rows as there are in the table.
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