Re: PostGreSQL and recursive queries...

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От Gregory Stark
Тема Re: PostGreSQL and recursive queries...
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Msg-id 87y7cf3f8x.fsf@oxford.xeocode.com
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Ответ на Re: PostGreSQL and recursive queries...  (Tom Lane <tgl@sss.pgh.pa.us>)
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"Tom Lane" <tgl@sss.pgh.pa.us> writes:

> Gregory Stark <stark@enterprisedb.com> writes:
>> I could imagine problems the planner would have to deal with though, such as
>> what type is "bogon" in this query?
>
>> WITH RECURSIVE x(bogon) AS (select bogon from x) select * from x;
>
> Just a note --- that's not the planner's problem, either.  Semantic
> interpretation of the meaning of a query is supposed to be completed
> during parse analysis.

I was being sloppy. I just mean as opposed to the executor. Ie, that the code
to build the plan is harder than actually running it.




--  Gregory Stark EnterpriseDB          http://www.enterprisedb.com Ask me about EnterpriseDB's RemoteDBA services!


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