[odb-users] best practice to access query result across transaction

[Fan Zhang]

I see. Just want to double check. Then I’ll just copy it.

Fan

> On Mar 28, 2017, at 10:12 AM, Boris Kolpackov <boris at codesynthesis.com> wrote:
> 
> Hi Fan,
> 
> Fan Zhang <fanz at linux.com> writes:
> 
>> [...] that the query result can not be accessed after the transaction
>> is ended. I’m therefore copying stuff to a vector, which can be expensive.
>> I guess odb must have some built-in support for this.
> 
> The reason you cannot access the query result after the transaction is
> because most databases stream the data as you iterate over it. Given
> this understanding, I wonder what kind of "magic" you expect ODB to
> provide here?
> 
> Boris