On Sat, Nov 17, 2012 at 1:05 PM, Philip Taylor <philiptaylo...@yahoo.com> wrote:
> CREATE TABLE foo (
>    x CHAR(32) PRIMARY KEY,
>    y CHAR(32) NOT NULL,
>    EXCLUDE USING gist ((ARRAY[x, y]) WITH &&)
> );

My first thought was you were going to have better luck with text
rather than char(n), but a little bit of experimentation suggests to
me that that doesn't work either.  It seems that GIN doesn't support
exclusion constraints and there's no gist opclass for text[],
varchar[], or anyarray.  Bummer.

-- 
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company


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