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Posted to issues@drill.apache.org by "Jacques Nadeau (JIRA)" <ji...@apache.org> on 2014/05/29 17:46:29 UTC
[jira] [Updated] (DRILL-149) Update Expression parser so that a
combined NULL_IF_NULL tree does vectorized null operations
[ https://issues.apache.org/jira/browse/DRILL-149?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jacques Nadeau updated DRILL-149:
---------------------------------
Fix Version/s: Future
> Update Expression parser so that a combined NULL_IF_NULL tree does vectorized null operations
> ---------------------------------------------------------------------------------------------
>
> Key: DRILL-149
> URL: https://issues.apache.org/jira/browse/DRILL-149
> Project: Apache Drill
> Issue Type: Bug
> Environment: If a portion of an expression tree is all NULL_IF_NULL, then we can use null bitvector intersection operations at the end of the expression tree and manage the nullability separately.
> Reporter: Jacques Nadeau
> Fix For: Future
>
>
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