Mike L <giantmetfan(at)comcast(dot)net> writes:
> Should logical replication fail due to a column of type 'xml' in a table
> in a publication?
Well, as you note, there's no equality operator for type xml.
Looking at the replication code, it looks like you might be able
to dodge the error if the replicated-to table has a primary key
(which'd necessarily not involve the xml column). Without a PK,
it will do full-row equality checks to determine tuple matches,
and that's where it falls down trying to compare the xml column.
regards, tom lane