Re: [HACKERS] Counting bool flags in a complex query

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От Tom Lane
Тема Re: [HACKERS] Counting bool flags in a complex query
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Msg-id 6419.932051230@sss.pgh.pa.us
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Ответ на Re: [HACKERS] Counting bool flags in a complex query  (Michael Richards <miker@scifair.acadiau.ca>)
Ответы Re: [HACKERS] Counting bool flags in a complex query  (Michael Richards <miker@scifair.acadiau.ca>)
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Michael Richards <miker@scifair.acadiau.ca> writes:
> I'm not sure this is correct, but I think I see a bug of some sort...

> SELECT folderid,foldername,count(*),sum(contentlength),sum(case when
> flagnew = TRUE then 1 else 0 end) FROM usermail,folders WHERE
> usermail.loginid='michael' and folders.loginid=usermail.loginid AND
> usermail.folder = folders.folderid GROUP BY folderid,foldername UNION
> SELECT folderid,foldername,0,0,0 FROM folders WHERE loginid='michael' AND
> NOT EXISTS (SELECT folder FROM usermail WHERE loginid='michael' AND
> folder=folderid) ;
> ERROR:  _finalize_primnode: can't handle node 723

I committed a fix last night; it will be in 6.5.1.
        regards, tom lane


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