Yes it does. Only ORDER BY causes order.
Julian
> On Apr 20, 2019, at 12:17, Gian Merlino wrote:
>
> Hey Julian,
>
> I think it'd be fine to issue the queries in parallel with a few
> adjustments. We'd want to avoid buffering, meaning we'd want to allow query
> results to be mixed together
Hey Julian,
I think it'd be fine to issue the queries in parallel with a few
adjustments. We'd want to avoid buffering, meaning we'd want to allow query
results to be mixed together (return rows in the order they become
available, rather than in query order sequence). I believe the SQL standard
Hey all,
Druid currently executes UNION ALL queries sequentially (
https://github.com/apache/incubator-druid/blob/master/sql/src/main/java/org/apache/druid/sql/calcite/rel/DruidUnionRel.java#L98).
There's a comment in that method that restates this, but does not explain
why. Is there a reason why
