I'm wondering if Gevik has had any time for further work on http://archives.postgresql.org/pgsql-hackers/2006-09/msg01738.php ?
FWIW, I'm running into this trying to create a 'raw' domain that would automagically convert hex strings into actual binary data for storage in a bytea. My intention was to use that as the basis for an 'md5data' domain (unfortunately, calling the domain simply 'md5' results in a conflict with the built-in md5 function). So something to consider on the domain casting is the case of casting from domain A to domain B to a base type. -- Jim Nasby [EMAIL PROTECTED] EnterpriseDB http://enterprisedb.com 512.569.9461 (cell) ---------------------------(end of broadcast)--------------------------- TIP 7: You can help support the PostgreSQL project by donating at http://www.postgresql.org/about/donate