Update 2017-10-18-two-types-of-correlation.markdown

Author: SergeyKanzhelev

content/posts/2017-10-18-two-types-of-correlation.markdown

@@ -22,7 +22,7 @@ When you have an Application Map is in a form of a star, you may notice that som
 ```
 dependencies 
   | join requests on $left.id == $right.operation_ParentId 
-  | summarize sum(itemCount) by from = cloud_RoleName1, to = cloud_RoleName
+  | summarize sum(itemCount) by from = cloud_RoleName, to = cloud_RoleName1
 ```
 
 This query joins outgoing from component `A` dependency call to the request incoming to the component `B`. Now you can see a map where every node is a separate `cloud_RoleName`. Note, that some of dependency calls are made to external components. To draw those you'd still need to use a target field from before. With the slight modification - you need to group it by `cloud_roleName`:
@@ -244,4 +244,4 @@ This picture shows how application map looks like:
 
 ## Future directions
 
-There are many improvements coming in the Application Insights distributed applications monitoring story. Specifically for Application Map we are working on optimizing join queries and speed up the map rendering. Application Map is more reliable with metric pre-aggregations. There will be advanced filtering and grouping capabilities to slice and dice the map. 
+There are many improvements coming in the Application Insights distributed applications monitoring story. Specifically for Application Map we are working on optimizing join queries and speed up the map rendering. Application Map is more reliable with metric pre-aggregations. There will be advanced filtering and grouping capabilities to slice and dice the map.