When calculating the search accuracy of subqueries using external tools, the search results of each subquery are obtained from trace information.

To retrieve the search results of a subquery, execute the pgx_list_search_results function by specifying the query ID and the type of subquery. When executed, a set of text chunks is returned in descending order of score, in the same format as the hybrid search results.

Example) Retrieve the search results of the full-text search subquery with query ID 10001

rag_database=> SELECT pgx_vectorizer.pgx_list_search_results(queryid => 10001, subquery_type => 'fulltext');

As a result, by providing the search results of subqueries for evaluation queries and the correct answers corresponding to evaluation queries to the evaluation tool, the search accuracy of subqueries can be calculated.