Re: UNION JOIN vs UNION SELECT

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От Thomas Lockhart
Тема Re: UNION JOIN vs UNION SELECT
Дата
Msg-id 39AA8A96.198289AC@alumni.caltech.edu
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Ответ на UNION JOIN vs UNION SELECT  (Tom Lane <tgl@sss.pgh.pa.us>)
Ответы Re: Re: UNION JOIN vs UNION SELECT  (Tom Lane <tgl@sss.pgh.pa.us>)
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> I noticed you've got some really ugly stuff in gram.y to handle
>         SELECT * FROM foo UNION JOIN bar
> I think it's time to bite the bullet and put in a lookahead filter.
> What say you?

*sigh* Probably right. The UNION vs UNION JOIN stuff illustrates it
pretty well. I haven't tried assigning precedence levels to these tokens
or to those subclauses; would that help to resolve the conflicts?
                 - Thomas


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