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Message Posted: Wed, 26 Nov 2008 @ 18:02:12 GMT

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Subj:   Re: Select statement as a column
From:   Victor Sokovin

  Does the change in TD13 mentioned previously in this thread avoid the need for the product join then?  

  Not that using a product product join would be extremely expensive in most cases.  

Rob, I have no idea. This thread is the first time I have read about the plans to implement the feature in Teradata although we discussed it here a few times in the past.

I can just say that I hope its implementation would be more intelligent than a conversion to a product join. In Oracle, the feature is often used by code generators to build complex queries out of all kinds of configuration data stored in reference tables and I suspect that the same code generators have requested it from Teradata. It is not an easy request to implement so I guess we'll just have to wait and see what happens.


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