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