How to simplify a query in PostgreSQL?

Question

PostgreSQL

I have a query like:

SELECT id,
       name,
       ts_rank_cd(to_tsvector('russian', name), query)
FROM catalog_product,
     to_tsquery('russian', 'телевизор') query
WHERE to_tsvector('russian', name) @@ query;

It confuses me that the "to_tsvector('russian', name)" part is duplicated here.
In fact, this is a simplified example, in a real query there is much more complicated in this place, something like

setweight( coalesce( to_tsvector('russian', name),''),'A') || ' ' || 
setweight( coalesce( to_tsvector('russian', array_to_string(items, ' ')),''),'B')

I don’t want to copy-paste such a footcloth twice.
If there was just a table, then a field with a calculated vector could be added to the table. In my case, this cannot be done, because. I select not from the table, and from other request in which set of tables are joined.
Is it possible to do without copypasta?