Hi Venkatesh,
1) Queries which had single level join when run always had this thing in the
log. "Not invoking CBO because the statement has too few joins". Can anyone
confirm this. Join optimization happens only when there are more than 1 join?
Is there a way around this.
This is true. In earl
Hey ambud,
Thank you for your inputs. That part we are 100% confident. Because when
the stats are missing for any of the column featuring in the query, the CBO
will log "stats not available for field. skipping CBO."
so we made sure we covered all the fields.
On Tue, Feb 12, 2019 at 11:58 AM Amb
Hello All,
I would like to know if anyone of you faced this issue with HIVE CBO and
also would like to get some directions as to how to go about resolving it.
We are using Hive 1.2.1. When we were evaluating the benefits of Cost based
Optimization(CBO), we stumbled upon this.
1) Queries which ha
