a***@yahoo.com
2018-11-05 10:14:12 UTC
Dears,
I had taken a SELECT script with 90 sets in one GROUPING, and there was a serious data skewing problem.
Was it concerned with the too many GROUPING SETS and how to solve it?
( I couldn't simply set hive.groupby.skewindata to true because there were some COUNT(DISTINCT ...) in it)
Thanks!
Regards,
åå¿çŠ¹
I had taken a SELECT script with 90 sets in one GROUPING, and there was a serious data skewing problem.
Was it concerned with the too many GROUPING SETS and how to solve it?
( I couldn't simply set hive.groupby.skewindata to true because there were some COUNT(DISTINCT ...) in it)
Thanks!
Regards,
åå¿çŠ¹