--- a/doc/development/postgresql_vfs.sql Tue Apr 26 18:21:25 2022 +0200 +++ b/doc/development/postgresql_vfs.sql Sat Apr 30 20:44:38 2022 +0200 @@ -22,7 +22,9 @@ pname text not null, lang text, nsdeflist text, - pvalue text + pvalue text, + + unique(resource_id, xmlns, pname) ); create type property_name as (