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https://issues.apache.org/jira/browse/LENS-1028?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15284246#comment-15284246
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Hudson commented on LENS-1028:
------------------------------
SUCCESS: Integrated in Lens-Commit-Java8 #159 (See
[https://builds.apache.org/job/Lens-Commit-Java8/159/])
LENS-1028 : Convert dimension filter to fact filters for perfomace
(amareshwari: rev bbf2154ee541907db727249ff96b14dbceec4537)
* lens-cube/src/main/java/org/apache/lens/cube/parse/GroupbyResolver.java
* lens-cube/src/main/java/org/apache/lens/cube/parse/DimHQLContext.java
* lens-cube/src/main/java/org/apache/lens/cube/parse/QueryAST.java
* lens-cube/src/main/java/org/apache/lens/cube/parse/MultiFactHQLContext.java
* lens-cube/src/main/java/org/apache/lens/cube/parse/DefaultQueryAST.java
* lens-cube/src/main/java/org/apache/lens/cube/parse/CubeQueryContext.java
* lens-cube/src/test/java/org/apache/lens/cube/parse/TestCubeRewriter.java
* lens-cube/src/main/java/org/apache/lens/cube/parse/join/AutoJoinContext.java
* lens-cube/src/main/java/org/apache/lens/cube/parse/CandidateFact.java
* lens-cube/src/main/java/org/apache/lens/cube/parse/CubeQueryConfUtil.java
* src/site/apt/user/olap-query-conf.apt
> Convert dimension filter to fact filters for perfomace improvement on outer
> join queries
> ----------------------------------------------------------------------------------------
>
> Key: LENS-1028
> URL: https://issues.apache.org/jira/browse/LENS-1028
> Project: Apache Lens
> Issue Type: Improvement
> Components: cube
> Reporter: Sushil Mohanty
> Assignee: Sushil Mohanty
> Fix For: 2.6
>
> Attachments: LENS-1028-6.patch
>
>
> Filters like the following can be converted to fact filters. This will help
> in improving query performance by pushing down filter to driving table i.e
> fact.
> e.g.
> where dim.name in ('x', 'y')
> becomes
> where fact.dimid in (select dim.id from dim where dim.name in ('x','y'))
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