(DOCSP-6646) Adding View Aggregation Pipeline section to View and Export Chart Data (#253)

* (DOCSP-6646) Adding View Aggregation Pipeline section, editing Get Chart Data copy

* Formatting for review

* Changes based on feedback

* Changes based on feedback

Author: zach-carr

source/view-export-chart-data.txt

@@ -28,7 +28,8 @@ View Source Documents
 
 Once you have selected a :doc:`data source <data-sources>` for your
 chart, you can view 20 sample documents from that data source by
-clicking the :guilabel:`View Source Documents` menu option.
+clicking the :guilabel:`View Source Documents` from the
+:icon-fa5:`ellipsis-h` menu.
 
 .. note::
    If you want to explore your data source beyond 20 sample documents,
@@ -50,30 +51,54 @@ data source that considers:
 
 - Filters applied in the :ref:`Filter Tab <filter-tab>`
 
+.. _view-aggregation-pipeline:
+
+View Aggregation Pipeline
+-------------------------
+
+After you have configured a valid chart, you can view the source query
+for the chart. MongoDB Charts uses a special type of query to create a
+chart called an 
+:manual:`aggregation pipeline </core/aggregation-pipeline>`. To view
+the query, click :guilabel:`View Aggregation Pipeline` from the
+:icon-fa5:`ellipsis-h` menu. This aggregation pipeline includes the
+stages that both the data source and the Chart Builder apply.
+
+.. important::
+
+   Some Chart Builder :doc:`configuration options </customize-charts>`
+   don't apply aggregation stages. These options are applied to a
+   chart's visualization and do not affect the underlying data.
+
+To use the pipeline in other MongoDB tools, such as 
+:compass:`Compass </>` or the :manual:`mongo shell </mongo>`, click 
+:icon-fa5:`copy` next to the pipeline in the 
+:guilabel:`Aggregation Pipeline` modal.
+
 .. _get-chart-data:
 
 Get Chart Data
 --------------
 
-After you have configured a valid chart, you can view the data
-displayed on the chart as a table. Each row in the table represents a
-data point. To view the chart data, click the :guilabel:`Get Chart Data`
-menu option.
-
-From the :guilabel:`Chart Data` dialog, you can download your
-chart data as a CSV or JSON file. This is useful for analyzing data
-with third-party tools.
+After you have configured a valid chart, you can view and export the
+underlying data as a table. To view the chart data, click the 
+:guilabel:`Get Chart Data` from the :icon-fa5:`ellipsis-h` menu. Each
+row in the table represents a data point.
 
-.. admonition:: Considerations
+.. admonition:: Data Table Differs from Chart Visualization
    :class: important
 
-   Some Chart Builder configuration options (e.g. the :guilabel:`Limit
-   Results` option and the :guilabel:`Multiplier` field-level option)
-   apply only to the chart visualization and do not affect the
-   underlying data. The :guilabel:`Chart Data` table displays
-   underlying data, meaning some configuration options you see
-   reflected on a chart may not be applied to the table. Review your
-   data to verify its contents.
+   Some configuration options you see reflected on a chart
+   visualization are not applied to the data table. The
+   :guilabel:`Chart Data` table displays underlying data retrieved
+   with your full aggregation pipeline, and not all Chart Builder
+   configuration options apply aggregation stages. Review your data to
+   verify its contents.
+
+If you want to analyze your underlying data with a third-party tool,
+you can download your data from the :guilabel:`Chart Data` modal. To
+download your data, click :guilabel:`Download - CSV` or
+:guilabel:`Download - JSON`.
 
 .. figure:: /images/charts/editor-chart-data.png
    :figwidth: 60%