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Posted to dev@phoenix.apache.org by "James Taylor (JIRA)" <ji...@apache.org> on 2016/01/24 04:35:39 UTC
[jira] [Assigned] (PHOENIX-1439) LIKE doesn't appear to use skip
scanning
[ https://issues.apache.org/jira/browse/PHOENIX-1439?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
James Taylor reassigned PHOENIX-1439:
-------------------------------------
Assignee: James Taylor
> LIKE doesn't appear to use skip scanning
> ----------------------------------------
>
> Key: PHOENIX-1439
> URL: https://issues.apache.org/jira/browse/PHOENIX-1439
> Project: Phoenix
> Issue Type: Improvement
> Reporter: Brian Johnson
> Assignee: James Taylor
> Fix For: 4.8.0
>
>
> We had a query using several like statements of the form LIKE 'prefix|%' and LIKE 'prefix2|%' ... and the performance was on par with a full table scan. When we replaced it with BETWEEN 'prefix|' and 'prefix|FFFFFFF...' the query time was substantially faster. It seems that the LIKE query should work with skip scan, but I don't think it's being used.
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