On Sybase and Microsoft SQL Server, HQL queries which had tuples in subqueries would throw exceptions. Neither Sybase nor Microsoft SQL Server support tuples in subqueries, such as the following query:
`delete from Table1 where (col1, col2) in (select col1, col2 from Table2)`
This issue occurred because the Hibernate dialects for Sybase and Microsoft SQL Server did not configure the `supportsTuplesInSubqueries` property to `false`.
In this release of JBoss EAP 6, the Hibernate dialects for Sybase and Microsoft SQL Server have been updated to accurately reflect the lack of support for tuples in subqueries. As a result, warnings are now produced rather than throwing exceptions.