query slower in stored procedure(after upgrade to 16)

Hi all,

We are looking to upgrade our SQL Anywhere 9 database to 16. We thought version 16 is slower in update tables, but the reason of slowness are query's in stored procedures called from the trigger. One of the query's has a duration of 8 times the duration in version 9!! When I run the query in Interactive Sql(v16), they run fast like version 9. So the query runs slower in a stored procedure.

I thought parameter sniffing, but it's not MS Sql Server. I've no idea why it was good in v9 and bad in v16. Have someone a idea?

It's a query with subquery's in the where , a view in the from. In the view are unions. Looks not so special.

thanks