Re: Domains and Indexes - Mailing list pgsql-hackers

From Rod Taylor
Subject Re: Domains and Indexes
Date
Msg-id 1029326152.74400.139.camel@jester
Whole thread Raw
In response to Re: Domains and Indexes  (Bruce Momjian <pgman@candle.pha.pa.us>)
Responses Re: Domains and Indexes  (Bruce Momjian <pgman@candle.pha.pa.us>)
List pgsql-hackers
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... ]
> 
> > 
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> 
> -- 
>   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
> 
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