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https://issues.apache.org/jira/browse/KYLIN-949?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Huang Hua updated KYLIN-949:
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Attachment: fix_kylin_949.patch
Here is my patch to fix the bug, which basically adds hashcode() and equals()
implementations in PrepareSqlRequest.
> Query cache doesn't work properly for prepareStatement queries
> --------------------------------------------------------------
>
> Key: KYLIN-949
> URL: https://issues.apache.org/jira/browse/KYLIN-949
> Project: Kylin
> Issue Type: Bug
> Components: REST Service
> Affects Versions: v0.7.2, v0.7.1
> Reporter: Huang Hua
> Assignee: Zhong,Jason
> Attachments: fix_kylin_949.patch
>
>
> There is a bug in searchQueryInCache() method, for PrepareSqlRequest, the
> cache logic is wrong which returns the same result for any PrepareSqlRequest
> with same sql no matter what the actual params are.
> For example, using "select LEAF_CATEG_ID from KYLIN_SALES where LEAF_CATEG_ID
> = ? group by LEAF_CATEG_ID;" with params=[65] to fire request, and kylin will
> return 65. Let's suppose that query is cached(we can modify kylin settings to
> enable it to cache every query).
> And then using the same sql but with params=[130], which returns 65 instead
> of 130.
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