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Posted to issues@kylin.apache.org by "hongbin ma (JIRA)" <ji...@apache.org> on 2017/04/28 06:57:04 UTC

[jira] [Updated] (KYLIN-2574) RawQueryLastHacker should group by all possible dimensions

     [ https://issues.apache.org/jira/browse/KYLIN-2574?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

hongbin ma updated KYLIN-2574:
------------------------------
    Request participants:   (was: )
             Description: currently RawQueryLastHacker make the raw query group by columns existing in query (if (tupleInfo.hasColumn(col))). The approach would fail to leverage limit push down if the existing columns are not a "prefix" of row keys.(org.apache.kylin.storage.gtrecord.GTCubeStorageQueryBase#enableStorageLimitIfPossible)  (was: currently RawQueryLastHacker make the raw query group by columns existing in query (if (tupleInfo.hasColumn(col))). The approach would fail to leverage limit push down if the existing columns are not a "prefix" of row keys.)

> RawQueryLastHacker should group by all possible dimensions
> ----------------------------------------------------------
>
>                 Key: KYLIN-2574
>                 URL: https://issues.apache.org/jira/browse/KYLIN-2574
>             Project: Kylin
>          Issue Type: Bug
>            Reporter: hongbin ma
>            Assignee: hongbin ma
>
> currently RawQueryLastHacker make the raw query group by columns existing in query (if (tupleInfo.hasColumn(col))). The approach would fail to leverage limit push down if the existing columns are not a "prefix" of row keys.(org.apache.kylin.storage.gtrecord.GTCubeStorageQueryBase#enableStorageLimitIfPossible)



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