JPA - MAX of COUNT or SELECT FROM SELECT
count, jpa, max, select, subquery
Solution
I haven't checked tha JPA specification, but given that the Hibernate documentation says
Note that HQL subqueries can occur only in the select or where clauses.
I very much doubt that your query can be transformed in a valid JPQL query.
You'll have to keep using this native SQL query.
Problem
I wrote the following query for MySQL: ``` SELECT subquery.t1_column1, subquery.t2_id, MAX(subquery.val) FROM ( SELECT t1.column1 as t1_column1, t1.id_t2 AS t2_id, count(1) AS val FROM table1 t1 INNER JOIN table2 t2 ON t2.id = t1.id_t2 GROUP BY t1.id_t2 ) subquery GROUP BY t1_column1 ``` And I'd like to translate it into JPA (JPQL or criteria query). I don't know how to make this max(count) thing, and JPA doesn't seem to like the SELECT FROM SELECT... If anyone has an idea other than native queries (I'll do it for now), it would be great.