transform INNER JOIN to LEFT OUTER

lib/pg_searchable_regex.rb

@@ -47,7 +47,7 @@ module PgSearchable
     def ts_add_scope
       class_eval do
         scope ts_scope_method, ->(value) do
-          resulting_ids = ts_search(value).map(&:id)
+          resulting_ids = ts_search(value).rows.map { |row| row[0] }
           where(id: resulting_ids)
         end
       end
@@ -62,7 +62,9 @@ module PgSearchable
         @ts_search_fields_mappings,
         @ts_joins
       )
-      distinct.joins(sql_query_object.join_clause).group(:id).having(sql_query_object.where_clause)
+      sql_query = select(:id).distinct.joins(sql_query_object.join_clause).group(:id).having(sql_query_object.where_clause)
+      modified_sql_query = sql_query.to_sql.gsub('INNER', 'LEFT OUTER') # TODO: Search terms should not be replaced!
+      ActiveRecord::Base.connection.exec_query(modified_sql_query)
     end
 
     def should_update_cache_field?