Oid to text...

Hi,

Given the Oid restype of a Resdom "object", is there any system table I
could query in order to retrieve the text representation of this type?

If for example a Resdom restype is 23 how can I get the string "integer"
or something like that? Are these mappings stored anyware?

Thanks in advance,
Ntinos Katsaros

PS: I searched the archives but my queries did not give anything...