tree 162467121df3cb0cff17546a33ab01a64628fffe
parent 4cce896b8fd8cd45f4b69e4ebcd540899b072f3b
author Tim Armstrong <tarmstrong@cloudera.com> 1573767052 -0800
committer Impala Public Jenkins <impala-public-jenkins@cloudera.com> 1573882740 +0000

IMPALA-9125: generalize finding DataSink from other fragment

This is a minor refactor that makes the existing mechanism
for finding PlanRootSink more general:
* Status-returning API to reduce boilerplate in caller.
* Avoid storing PlanRootSink as a member - this doesn't scale
  nicely to multiple subclasses. Instead use an accessor method.

Change-Id: I3c91cadf9ecfde9cc3235bd71412ba10ee37bc4e
Reviewed-on: http://gerrit.cloudera.org:8080/14710
Reviewed-by: Impala Public Jenkins <impala-public-jenkins@cloudera.com>
Tested-by: Impala Public Jenkins <impala-public-jenkins@cloudera.com>