Re: Domains and Indexes

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.

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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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> TIP 4: Don't 'kill -9' the postmaster

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Bruce Momjian | http://candle.pha.pa.us
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