# collapse the selector to a literal so that it survives the distinct parse
# if it turns out to be an aggregate - at least the user will get a proper exception
# instead of silent drop of the group_by altogether
- $select = \ $rsrc->storage->sql_maker->_recurse_fields($select);
+ $select = \[ $rsrc->storage->sql_maker->_recurse_fields($select) ];
}
}