Re: Domains and Indexes

I backed this out. It is part of a later patch still in the queue.

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Bruce Momjian wrote:
> 
> [ Sorry for previous message saying it was added to queue.]
> 
> Patch applied.  Thanks.
> 
> ---------------------------------------------------------------------------
> 
> 
> 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
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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,
Pennsylvania19073