Re: Domains and Indexes

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От Bruce Momjian
Тема Re: Domains and Indexes
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Msg-id 200208141738.g7EHcxp13217@candle.pha.pa.us
обсуждение исходный текст
Ответ на Re: Domains and Indexes  (Rod Taylor <rbt@zort.ca>)
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Thanks.  I will keep it in the queue for CVS commit message sake.

---------------------------------------------------------------------------

Rod Taylor wrote:
> Sorry Bruce, this was included as a part of the patch of the below
> subject:
> 
> Re: [PATCHES] Dump serials as serial -- not a sequence
> 
> 
> Patch may be smart enough to say 'already applied'.
> 
> 
> On Wed, 2002-08-14 at 01:29, Bruce Momjian wrote:
> > 
> > Your patch has been added to the PostgreSQL unapplied patches list at:
> > 
> >     http://candle.pha.pa.us/cgi-bin/pgpatches
> > 
> > I will try to apply it within the next 48 hours.
> > 
> > ---------------------------------------------------------------------------
> > 
> > 
> > Rod Taylor wrote:
> > > Appears there is a problem finding the opclass when indexing a domain.
> > > 
> > > CREATE DOMAIN newint as int4;
> > > CREATE TABLE tab (col newint unique);
> > > ERROR:  data type newint has no default operator class for access method
> > > "btree"
> > >     You must specify an operator class for the index or define a
> > >     default operator class for the data type
> > > 
> > > 
> > > Specifically, GetDefaultOpClass() finds 0 exact matches and 3 binary
> > > compatible matches.  Fetching getBaseType() of the attribute fixes the
> > > problem for domains (see attachment).
> > > 
> > > However, I have to wonder why GetDefaultOpClass doesn't simply use the
> > > first Binary Compatible opclass.  When there is more than one usable it
> > > doesn't do anything useful.
> > > 
> > > 
> > 
> > [ Attachment, skipping... ]
> > 
> > > 
> > > ---------------------------(end of broadcast)---------------------------
> > > TIP 4: Don't 'kill -9' the postmaster
> > 
> > -- 
> >   Bruce Momjian                        |  http://candle.pha.pa.us
> >   pgman@candle.pha.pa.us               |  (610) 359-1001
> >   +  If your life is a hard drive,     |  13 Roberts Road
> >   +  Christ can be your backup.        |  Newtown Square, Pennsylvania 19073
> > 
> > ---------------------------(end of broadcast)---------------------------
> > TIP 6: Have you searched our list archives?
> > 
> > http://archives.postgresql.org
> > 
> 
> 
> 

--  Bruce Momjian                        |  http://candle.pha.pa.us pgman@candle.pha.pa.us               |  (610)
359-1001+  If your life is a hard drive,     |  13 Roberts Road +  Christ can be your backup.        |  Newtown Square,
Pennsylvania19073
 


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