Re: User defined I/O conversion casts

Tom Lane wrote:
> Heikki Linnakangas <heikki.linnakangas@enterprisedb.com> writes:
>> Yeah, a magical OID clearly has some issues. A new field in pg_cast is 
>> the obvious alternative. How about adding a "castmethod" char field, 
>> with values:
>> b = binary-compatible cast (CREATE CAST ... WITHOUT FUNCTION)
>> i = I/O coercion cast (the new beast, CREATE CAST ... WITH INOUT)
>> f = use cast function specified in castfunc field.
>> castfunc is 0 for methods b and i.
> 
> Seems sane to me.  If you do that, please add a check in the opr_sanity
> regression test that castfunc is nonzero if and only if castmethod is f.

Ok, will do.

--   Heikki Linnakangas  EnterpriseDB   http://www.enterprisedb.com