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https://issues.apache.org/jira/browse/SPARK-12161?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hyukjin Kwon resolved SPARK-12161.
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Resolution: Incomplete
> SparkSQL Cache Matching Improvement
> -----------------------------------
>
> Key: SPARK-12161
> URL: https://issues.apache.org/jira/browse/SPARK-12161
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Reporter: Jiang Chen
> Priority: Major
> Labels: bulk-closed
> Original Estimate: 1h
> Remaining Estimate: 1h
>
> Right now SparkSQL CacheManager can only map incoming query with cached query
> when they are exactly the same. That is to say, for the following query
> pattern:
> - Query 1: CACHE TABLE first AS SELECT * FROM table A where A.id >100 AND
> A.id < 200;
> - Query 2: SELECT * FROM table A where A.id < 200 AND A.id > 100;
> Query 2 cannot utilize the cache result of query 1, although query 1 and
> query 2 are the same if ignoring the order of the predicates.
> Ideally, for all incoming queries, we'd like to ignore the order of
> predicates when matching them with the cached queries.
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