Docsp 19836 document max n min n (#161)

* DOCSP-19836 init

* fix setwindowfield build errors

* aggregation.txt build errors

* *

* Address Jeff changes #1

* Make aggregation.txt consistant with extracts-agg

* Length of Comparison of maxN topN header corrected

* Address Mihai Comments #1

* *

* fix build error for sort and indents

* Addres Mihai comments #2

* Adjust minimumThree scores bullet

Author: ianf-mongodb

source/includes/extracts-agg-operators.yaml

@@ -1093,6 +1093,17 @@ content: |
 
              Available in :pipeline:`$setWindowFields` stage.
 
+      * - :group:`$maxN`
+
+        - Returns an aggregation of the ``n`` maximum valued elements in
+          a group.
+
+          .. versionadded:: 5.2
+
+          Available in :pipeline:`$group`, 
+          :pipeline:`$setWindowFields`
+          and as an :ref:`expression <aggregation-expressions>`.
+
       * - :expression:`$mergeObjects`
 
         - Returns a document created by combining the input documents
@@ -1370,6 +1381,17 @@ content: |
 
              Available in :pipeline:`$setWindowFields` stage.
 
+      * - :group:`$minN`
+
+        - Returns an aggregation of the ``n`` minimum valued elements in a
+          group.
+
+          .. versionadded:: 5.2
+
+          Available in :pipeline:`$group`, 
+          :pipeline:`$setWindowFields`
+          and as an :ref:`expression <aggregation-expressions>`.
+
       * - :group:`$push`
 
         - Returns an array of values that result from applying an

source/includes/setWindowFields-operators.rst

@@ -3,12 +3,11 @@ These operators can be used with the :pipeline:`$setWindowFields` stage:
 .. _setWindowFields-accumulator-operators:
 
 - Accumulator operators: :group:`$addToSet`, :group:`$avg`, 
-  :group:`$bottom`, :group:`$bottomN`, :group:`$count`, 
-  :group:`$covariancePop`, :group:`$covarianceSamp`, :group:`$derivative`, 
-  :group:`$expMovingAvg`, :group:`$integral`, :group:`$max`, 
-  :group:`$min`, :group:`$push`, :group:`$stdDevSamp`,
-  :group:`$stdDevPop`, :group:`$sum`, :group:`$top` 
-  and :group:`$topN`.
+  :group:`$bottomN`, :group:`$count`, :group:`$covariancePop`, 
+  :group:`$covarianceSamp`, :group:`$derivative`, 
+  :group:`$expMovingAvg`, :group:`$integral`, :group:`$max`, :group:`$maxN`, 
+  :group:`$min`, :group:`$minN`, :group:`$push`, :group:`$stdDevSamp`,
+  :group:`$stdDevPop`, :group:`$sum` and :group:`$topN`.
 
 .. _setWindowFields-gap-filling-operators:
 

source/reference/operator/aggregation.txt

@@ -731,6 +731,16 @@ Alphabetical Listing of Expression Operators
 
        .. versionadded:: 5.2
 
+   * - :group:`$maxN`
+
+     - Returns an aggregation of the ``n`` maximum valued elements in a
+       group.
+   
+       .. versionadded:: 5.2
+
+          Available in :pipeline:`$group`, 
+          :pipeline:`$setWindowFields`
+          and as an :ref:`expression <aggregation-expressions>`.
 
    * - :expression:`$mergeObjects`
 
@@ -751,13 +761,16 @@ Alphabetical Listing of Expression Operators
 
           Available in :pipeline:`$setWindowFields` stage.
 
-   * - :expression:`$minN`
+   * - :group:`$minN`
 
-     - Returns the ``n`` smallest values in an array.
-       Distinct from the :group:`$minN` accumulator.
-
-       .. versionadded:: 5.2
+     - Returns an aggregation of the ``n`` minimum valued elements in a
+       group.
 
+       .. versionadded:: 5.2
+
+          Available in :pipeline:`$group`, 
+          :pipeline:`$setWindowFields`
+          and as an :ref:`expression <aggregation-expressions>`.
 
    * - :expression:`$millisecond`
 
@@ -1314,10 +1327,12 @@ Alphabetical Listing of Expression Operators
    /reference/operator/aggregation/ltrim
    /reference/operator/aggregation/map
    /reference/operator/aggregation/max
+   /reference/operator/aggregation/maxN
    /reference/operator/aggregation/maxN-array-element
    /reference/operator/aggregation/mergeObjects
    /reference/operator/aggregation/meta
    /reference/operator/aggregation/min
+   /reference/operator/aggregation/minN
    /reference/operator/aggregation/minN-array-element
    /reference/operator/aggregation/millisecond
    /reference/operator/aggregation/minute