"PX SEND HASH" Distribution Sending Nearly all Rows to One Slave when Doing Outer Join
(Doc ID 2472931.1)
Last updated on FEBRUARY 26, 2019
Applies to:Oracle Database - Enterprise Edition - Version 184.108.40.206 to 220.127.116.11 [Release 11.2 to 12.2]
Information in this document applies to any platform.
When an outer join is used and HASH JOIN OUTER is seen in the explain plan, one of the consumer slaves seems to do most of the work on the hash join.
To view full details, sign in with your My Oracle Support account.
Don't have a My Oracle Support account? Click to get started!
In this Document