Hello. Is there any way to determinate "LIMIT" by expression in Exposed? In plain SQL from Postgres I can do subquery and CASE WHEN to calculate current limit, but "limit" method in Exposed accepts only integer

You can always use raw sql if stuff is not supported in exposed https://github.com/JetBrains/Exposed/wiki/FAQ#q-how-to-get-a-plain-sql-query-which-will-be-executed