Hi Scott. When you say "page cache" - I assume you are talking about Sqlite internals rather than the underlying OS? I have indeed seen page/pager mentioned a lot in the Sqlite C code, but I don't know what that is about. So I guess what I am requesting is a pragma or whatever to force pages to be contiguous or whatever is required so that the efficient :memory: logic can be used. I see code in Sqlite referring to posixIoMethods and nolockIoMethods etc. I'm not sure if this is the right place to be making a determination that we can switch to efficient :memory: IoMethods (I don't see something like that named). BFN. Paul.