Sometimes it is useful to have specific set of columns in the Issue/Bug Table, different from the default one.
When created, all new queries inherit columns configuration from their direct parents, so the easiest thing to do, is to create a top level query with the required configuration in the beginning and then create all other queries as its children.
Connection itself always has default columns configuration, so all queries created at the top level will always have default columns configuration.
Please note, that the configuration is only copied when the query is created. If you change the configuration of the parent after the child query has already been created, the child configuration will remain the same.
Same rules apply to distributions - if you create a distribution under some query, all distribution queries will copy the configuration of the parent query.
All of the above only works for tables opened as query results and does not work for search results, for example.