shfshihuafeng commented on PR #2995:
URL: https://github.com/apache/drill/pull/2995#issuecomment-3024180769
> I submitted some minor changes. Just a reminder but we really need unit
tests in order to merge this.
>
> Also, have you considered adding a limit pushdown? It is usually pretty
easy to do and only involves:
>
> * Implementing two methods in the group scan (`HiveScan`) which are:
`supportsLimitPushdown` and `applyLimit`.
> * Passing the limit through the subscans.
> * Adding some logic in the readers to stop when the limit is reached.
> Maybe it would be best to open a new JIRA for that, but IMHO, it is one
of the easiest and most effective pushdowns that can be implemented yet Drill
didn't seem to do for all the plugins.
@cgivre I think it is best to open a new JIRA,so you can refer to following
link for hive limit push down,
pr: []( https://github.com/apache/drill/pull/2997)
JIRA:[](url) https://issues.apache.org/jira/browse/DRILL-8527
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