Re: [SQL] OUTER JOINS

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От Dan Janowski
Тема Re: [SQL] OUTER JOINS
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Msg-id 371B2F13.D8B446F6@3skel.com
обсуждение исходный текст
Ответ на [SQL] OUTER JOINS  (Dan Janowski <danj@3skel.com>)
Ответы Re: [SQL] OUTER JOINS  (Herouth Maoz <herouth@oumail.openu.ac.il>)
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Thanks for giving it a stab. Looking at the available
operators,
there is no =* or *= ops available. Although I am curious
where it
comes from.

Dan


Joe Shevland wrote:
> ... 
> select t1.value from table_one t1, table_two t2 where t1.key = t2.key;
> 
> So this would be a straight LEFT join in my understanding. Now, I'm
> venturing beyond my experience with PostgreSQL here, but you may be able
> to use the associated SQL syntaxes:
> 
> select ... where t1.key *= t2.key
> select ... where t1.key =* t2.key
> ...
>
> Dan Janowski wrote:
> >
> > I've looked through the docs and mail lists but I am coming
> > up short on references for LEFT/RIGHT/FULL OUTER JOIN
> > avalability
> > or functional workarounds. It seems that PostgreSQL does
> > not have it.
> >
> > Any recommendations on how to aproximate the functionality?
> >
> > As a curiosity, is there a problem with supporting these
> > OUTER joins or is it merely on the list?
> >

--
Dan Janowski     danj@3skel.com       Triskelion Systems,
Inc.     Bronx, NY


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