[
https://issues.apache.org/jira/browse/FLINK-16165?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
godfrey he updated FLINK-16165:
-------------------------------
Component/s: (was: Table SQL / Planner)
Table SQL / Runtime
> NestedLoopJoin fallback to HashJoin when build records number is very large
> ---------------------------------------------------------------------------
>
> Key: FLINK-16165
> URL: https://issues.apache.org/jira/browse/FLINK-16165
> Project: Flink
> Issue Type: Improvement
> Components: Table SQL / Runtime
> Reporter: Jingsong Lee
> Priority: Critical
> Labels: stale-critical
>
> Now, if the statistic is not so accurate, maybe choose wrong join type to
> nested loop join.
> If build records number is very large, this lead to very slow join, the user
> looks like the join is in Hang.
> It is a stability problem, We should fallback to hash join in runtime to
> avoid this hang.
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
