As I understand it is also single threader for joins (not with lookup
tables, but with different OLAP), am I right?
Could you please guide me where it happens in the code? I would like to
contribute. Maybe there are already some tickets about it?
On Sun, Aug 6, 2017 at 9:12 AM, Li Yang <liy...@apache.org> wrote:
> That is right. Sub-queries are executed sequentially as of Kylin 2.0.
> On Fri, Jul 28, 2017 at 2:16 AM, Alexander Sterligov <sterligo...@joom.it>
>> My fact table has 12 boolean fields and user id. I need to count distinct
>> users with has certain combinations of these flags. So I do several
>> sub-queries and union all of them.
>> This query may take up to one minute and it doesn't depend on number of
>> regionservers in hbase.
>> It looks like sub-queries are executed sequentially. Or maybe segment
>> pruning by dictionary is done sequentially.
>> Am I right?
>> Best regards,