LakshSingla opened a new pull request, #14370:
URL: https://github.com/apache/druid/pull/14370
### Description
MSQ queries return the results in the query reports. Querying large data
sources can generate a lot of rows, all of which will get materialized in the
query reports, causing them to grow very large. This PR limits the results of
the SELECT queries that we put in the reports.
Note: Only way to fetch the complete result set after this change would be
to run the query using the native engine, however, we might add a way to
execute long-running queries that post their complete results in a different.
Therefore the rows in the reports would serve as a preview to the actual result
set.
#### Release note
SELECT queries executed using MSQ generate only a subset of the results in
the query reports.
<hr>
##### Key changed/added classes in this PR
* `ControllerImpl`
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- [ ] added integration tests.
- [ ] been tested in a test Druid cluster.
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