Feature Requests item #2229591, was opened at 2008-11-06 13:34
Message generated for change (Comment added) made by nielsnes
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Category: None
Group: None
Status: Open
Priority: 5
Private: No
Submitted By: Stefan de Konink (skinkie)
Assigned to: Martin Kersten (mlkersten)
Summary: [Performance] materialize aggregate results in a view

Initial Comment:
Currently it looks like any operation on a view is stacked; the view-query is 
executed along the query on the view. I wonder, especially for aggregated 
values such as created with GROUP BY, if it isn't a better solution to 
materialize them instead of recalculating them.

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>Comment By: Niels Nes (nielsnes)
Date: 2009-02-11 20:06

Message:
This is a feature request

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Comment By: Martin Kersten (mlkersten)
Date: 2008-11-19 07:38

Message:
A test file has been added to test/BugTracker

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Comment By: Martin Kersten (mlkersten)
Date: 2008-11-19 07:30

Message:
This can be considered a bug, because the implementation
was meant to remove all such duplicate subqueries.
A new commonterm optimizer has been created, but will
be checked in after the SIGMOD deadline to avoid
possible interference with recycler experimentation.

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Comment By: Stefan de Konink (skinkie)
Date: 2008-11-18 15:22

Message:
Right comment to wrong bug?

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Comment By: Martin Kersten (mlkersten)
Date: 2008-11-18 15:09

Message:
Observation confirmed. The commonTerm optimizer should 
have removed the duplicate code.

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You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=482471&aid=2229591&group_id=56967

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