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https://issues.apache.org/jira/browse/LENS-204?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14548252#comment-14548252
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Sushil Mohanty commented on LENS-204:
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{CODE}
[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary:
[INFO]
[INFO] Lens Checkstyle Rules ............................. SUCCESS [8.310s]
[INFO] Lens .............................................. SUCCESS [0.454s]
[INFO] Lens API .......................................... SUCCESS [13.340s]
[INFO] Lens API for server and extensions ................ SUCCESS [54.837s]
[INFO] Lens Cube ......................................... SUCCESS [5:32.167s]
[INFO] Lens DB storage ................................... SUCCESS [24.774s]
[INFO] Lens Query Library ................................ SUCCESS [14.045s]
[INFO] Lens Hive Driver .................................. SUCCESS [4:27.851s]
[INFO] Lens Driver for JDBC .............................. SUCCESS [35.817s]
[INFO] Lens Server ....................................... SUCCESS [17:49.322s]
[INFO] Lens client ....................................... SUCCESS [47.315s]
[INFO] Lens CLI .......................................... SUCCESS [6:50.725s]
[INFO] Lens Examples ..................................... SUCCESS [3.261s]
[INFO] Lens Distribution ................................. SUCCESS [3.570s]
[INFO] Lens ML Lib ....................................... SUCCESS [3:11.738s]
[INFO] Lens ML Ext Distribution .......................... SUCCESS [9.129s]
[INFO] Lens Regression ................................... SUCCESS [0.793s]
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 41:28.628s
[INFO] Finished at: Mon May 18 22:04:16 GMT+05:30 2015
[INFO] Final Memory: 85M/1078M
[INFO] ------------------------------------------------------------------------
{CODE}
> Support union across tables in cube rewriting
> ---------------------------------------------
>
> Key: LENS-204
> URL: https://issues.apache.org/jira/browse/LENS-204
> Project: Apache Lens
> Issue Type: Improvement
> Components: cube
> Reporter: Amareshwari Sriramadasu
> Assignee: Sushil Mohanty
> Fix For: 2.2
>
> Attachments: LENS-204-1.patch
>
>
> Right now, if query rewriting requires union across two or more tables, the
> query fails. We would need union across two or more tables for the following
> use cases
> # The time range queried is spread across two or more storage tables of a fact
> # The time range queried is spread across two or more fact tables
> # This is debatable use case - the same measure is present in two fact tables
> ** When same measure is present in more than one fact table, we pick one
> candidate fact table right now. Optionally, we should allow union with other
> facts through fact property. I won't push for this, but putting it here as we
> have seen this in our internal data model.
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