Re: Any was to prevent a join if no columns are selected from a view?

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От Ben Chobot
Тема Re: Any was to prevent a join if no columns are selected from a view?
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Msg-id 10363436-7EE0-4967-A879-ABC8BED4C993@silentmedia.com
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Ответ на Any was to prevent a join if no columns are selected from a view?  (Jason Long <mailing.lists@octgsoftware.com>)
Ответы Re: Any was to prevent a join if no columns are selected from a view?
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On Sep 29, 2011, at 4:57 PM, Jason Long wrote:

I thought I had read somewhere that Postges could ignore a join if it
was not necessary because there were no columns from the table or view
selected in the query.  Is this possible?

This sounds like incorrect logic to me, so I would be surprised if it was possible.

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