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Addition to subquery limit migration guide (#16671)
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Co-authored-by: Laksh Singla <lakshsingla@gmail.com>
Co-authored-by: Victoria Lim <vtlim@users.noreply.github.com>
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Expand Up @@ -52,6 +52,10 @@ This property takes precedence over `maxSubqueryRows`.
You can set both `maxSubqueryRows` and `maxSubqueryBytes` at cluster level and override them in individual queries.
See [Overriding default query context values](../configuration#overriding-default-query-context-values) for more information.

Make sure you enable the Broker monitor `SubqueryCountStatsMonitor` so that Druid emits metrics for subquery statistics.
To do this, add `org.apache.druid.server.metrics.SubqueryCountStatsMonitor` to the `druid.monitoring.monitors` property in your Broker's `runtime.properties` configuration file.
See [Metrics monitors](../configuration/index.md#metrics-monitors) for more information.

## Learn more

See the following topics for more information:
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