| From: | Erik Jones <erik(at)myemma(dot)com> |
|---|---|
| To: | Leon Mergen <leon(at)solatis(dot)com> |
| Cc: | "Alban Hertroys" <dalroi(at)solfertje(dot)student(dot)utwente(dot)nl>, pgsql-general(at)postgresql(dot)org |
| Subject: | Re: Conditional JOINs ? |
| Date: | 2008-03-19 14:12:50 |
| Message-ID: | EF30AEAE-03E9-4161-9993-46A137A1AEC5@myemma.com |
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| Thread: | |
| Lists: | pgsql-general |
On Mar 19, 2008, at 9:01 AM, Leon Mergen wrote:
> On 3/19/08, Leon Mergen <leon(at)solatis(dot)com> wrote:
>> Excuse me for bumping this up again, but I still don't understand how
>> to use this approach to sequentially walk through all different child
>> tables in one select, without having to JOIN these tables all the
>> time
>
> Apparently a UNION all solved this problem -- sorry for the noise.
If you have the child tables INHERITing from the parent, then a simple
SELECT parent.* FROM parent;
would be equivalent to manually spelling out a UNION ALL that
explicitly lists all of the tables.
Erik Jones
DBA | Emma®
erik(at)myemma(dot)com
800.595.4401 or 615.292.5888
615.292.0777 (fax)
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