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Bug #2979

create Union query to concatenate results from multiple entities

Added by ben leinfelder about 12 years ago. Updated almost 10 years ago.

Status:
Resolved
Priority:
Normal
Category:
datamanager
Target version:
Start date:
10/09/2007
Due date:
% Done:

0%

Estimated time:
Bugzilla-Id:
2979

Description

The motivation for this enhancement came from both Kepler (wanting to merge data from like-structured datatables in an EMLDataSource actor) and from the FIRST project where a similar function is desired (but across many different packages).
Implementation is intended to be a straightforward SQL union/union all between two or more Query objects.


Related issues

Blocked by Kepler - Bug #2965: Ability to easily concatenate identical data structures (EMLDatasource)Resolved09/11/2007

History

#1 Updated by ben leinfelder about 12 years ago

created org.ecoinformatics.datamanager.database.Union
created org.ecoinformatics.datamanager.database.UnionTest (test source tree)
modified org.ecoinformatics.datamanager.DataManager to execute Union queries (just like existing normal Query)

#2 Updated by ben leinfelder almost 10 years ago

this has long been resolved and is in use extensively in the FIRST project

#3 Updated by Redmine Admin over 6 years ago

Original Bugzilla ID was 2979

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