The following seems to me a bug in either initdb or create operator:
CREATE FUNCTION my_func (inet, inet) as '$libdir/my_func.so' LANGUAGE 'C'
IMMUTABLE STRICT;
CREATE OPERATOR <<< (
PROCEDURE = my_func,
LEFTARG = cidr,
RIGHTARG = cidr,
RESTRICT = contsel,
JOIN = contjoinsel
);
ERROR: function my_func(cidr, cidr) does not exist
Now, if you look at the catalog, and the < (less than operator) as an example
you will see that:
Two operators are defined for < - one for inet,inet and another for cidr,cidr.
Only one function exists named network_lt, and is declared as taking
(inet,inet) as arguments.
Obviously, it should either have a corresponding function declaration, or it
should be possible to create the operators using a binary compatible function
(eg: where a binary compatible cast exists).
I propose, that the create operator syntax be modified to accept:
PROCEDURE = function_name (type{,type})
and that checks be made for the existence of binary compatible casts between
the two (four) types.
Kind Regards,
John
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