Currently, IN clauses are very unoptimal in H2 (it uses a linear search each time IN clause is evaluated).
I've implemented a very crude and hacky optimization, but it sped up our application about 100 times :) Basically, I check during evaluation time that if all list values are of the same type, then I create a Session-bound HashMap and use it for fast lookups. -- You received this message because you are subscribed to the Google Groups "H2 Database" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/h2-database?hl=en.
