Database: codebase_community (difficulty: simple)
Question: Which post by hannes.koller has the most answers count? State the post ID.
SQL: SELECT T2.PostId FROM users AS T1 INNER JOIN postHistory AS T2 ON T1.Id = T2.UserId INNER JOIN posts AS T3 ON T2.PostId = T3.Id WHERE T1.DisplayName = 'hannes.koller' ORDER BY T3.AnswerCount DESC LIMIT 1