edgar2020 commented on code in PR #16762: URL: https://github.com/apache/druid/pull/16762#discussion_r1688744588
########## docs/tutorials/tutorial-rollup.md: ########## @@ -24,18 +24,18 @@ sidebar_label: Aggregate data with rollup --> -Apache Druid can summarize raw data at ingestion time using a process we refer to as "rollup". Rollup is a first-level aggregation operation over a selected set of columns that reduces the size of stored data. +Apache Druid® can summarize raw data at ingestion time using a process known as "rollup". Rollup is a first-level aggregation operation over a selected set of columns that reduces the size of stored data. -This tutorial will demonstrate the effects of rollup on an example dataset. +This tutorial demonstrates the effects of rollup on an example dataset. -For this tutorial, we'll assume you've already downloaded Druid as described in -the [single-machine quickstart](index.md) and have it running on your local machine. +For this tutorial, you should have Druid downloaded as described in +the [single-machine quickstart](index.md) and have it running on your local machine. The examples in the tutorial use the [multi-stage query](../multi-stage-query/index.md) (MSQ) task engine to execute SQL statements. -It will also be helpful to have finished [Load a file](../tutorials/tutorial-batch.md) and [Query data](../tutorials/tutorial-query.md) tutorials. +It is helpful to have finished [Load a file](../tutorials/tutorial-batch.md) and [Query data](../tutorials/tutorial-query.md) tutorials. ## Example data -For this tutorial, we'll use a small sample of network flow event data, representing packet and byte counts for traffic from a source to a destination IP address that occurred within a particular second. +For this tutorial, you use a small sample of network flow event data, representing packet and byte counts for traffic from a source to a destination IP address that occurred within a particular second. Review Comment: applyed suggestion -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
