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Posted to issues@spark.apache.org by "Yin Huai (JIRA)" <ji...@apache.org> on 2016/03/17 00:27:33 UTC
[jira] [Resolved] (SPARK-13871) Add support for inferring filters
from data constraints
[ https://issues.apache.org/jira/browse/SPARK-13871?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Yin Huai resolved SPARK-13871.
------------------------------
Resolution: Fixed
Fix Version/s: 2.0.0
Issue resolved by pull request 11665
[https://github.com/apache/spark/pull/11665]
> Add support for inferring filters from data constraints
> -------------------------------------------------------
>
> Key: SPARK-13871
> URL: https://issues.apache.org/jira/browse/SPARK-13871
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Reporter: Sameer Agarwal
> Priority: Minor
> Fix For: 2.0.0
>
>
> Now that we have an infrastructure for propagating data constraints, we should generalize the NullFiltering optimizer rule in catalyst to InferFiltersFromConstraints that can automatically infer all relevant filters based on an operator's constraints while making sure of 2 things:
> (a) no redundant filters are generated, and
> (b) filters that do not contribute to any further optimizations are not generated.
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