find only the last version of article on listing

src/main/resources/sql/functions/article/find_articles.sql

@@ -9,7 +9,7 @@ create or replace function find_articles(
 ) language plpgsql as
 $$
 begin
-    select json_agg(t), (select count(id) from article a where _search is null or _search = '' or a ==> dsl.multi_match('{title^3, content, description}', _search))
+    select json_agg(t), (select count(id) from article a where (_search is null or _search = '' or a ==> dsl.multi_match('{title^3, content, description}', _search)) and a.is_last_version = true)
     into resource, total
     from (
         select
@@ -17,7 +17,11 @@ begin
             find_citizen_by_id(a.created_by_id) as created_by,
             zdb.score(a.ctid) _score
         from article as a
-        where _search is null or _search = '' or a ==> dsl.multi_match('{title^3, content, description}', _search)
+        where (
+              _search is null
+           or _search = ''
+           or a ==> dsl.multi_match('{title^3, content, description}', _search)
+        ) and a.is_last_version = true
         order by
         _score desc,
         case direction when 'asc' then