dmigowski wrote
> I need to create a deferrable,unique partial constraint (using a WHERE
> clause) on my table
I don't know the exact required syntax but the description of the "EXCLUDE"
clause to "CREATE TABLE" implies that it can be used to accomplish what you
desire.
Not tested but something like:
EXCLUDE USING btree ( col WITH = ) WHERE ... DEFERRABLE INITIALLY IMMEDIATE
http://www.postgresql.org/docs/9.1/static/sql-createtable.html
While the documentation says that using btree with EXCLUDE is uncommon this
does seem to be a mandatory exception.
David J.
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