Apache
/
druid
mirror of https://github.com/apache/druid.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Update tutorial-rollup.md (#8687) 

At this point there hasn't yet been an explanation in the tutorial of what "segments" are
This commit is contained in:
Jad Naous 2019-10-16 19:08:09 -07:00 committed by Gian Merlino
parent 89ce6384f5
commit 9f4e11df32
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
docs/tutorials/tutorial-rollup.md
View File

@ -24,7 +24,7 @@ sidebar_label: "Roll-up"
-->
Apache Druid (incubating) can summarize raw data at ingestion time using a process we refer to as "roll-up". Roll-up is a first-level aggregation operation over a selected set of columns that reduces the size of stored segments.
Apache Druid (incubating) can summarize raw data at ingestion time using a process we refer to as "roll-up". Roll-up 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 roll-up on an example dataset.