DOCS-5883 : Add 'Number' alias option for $type

source/includes/fact-bson-types.rst

@@ -19,6 +19,6 @@ JavaScript (with scope)     15       "javascriptWithScope"
 32-bit integer              16       "int"
 Timestamp                   17       "timestamp"
 64-bit integer              18       "long"
-Min key                    -1       "minKey"                  
+Min key                    -1        "minKey"                  
 Max key                    127       "maxKey"
 =======================  ========== ======================  ==================================

source/reference/operator/query/type.txt

@@ -44,6 +44,17 @@ Available Types
 
 .. include:: /includes/fact-bson-types.rst
 
+:query:`$type` supports the ``number`` alias, which will match against the 
+following :term:`BSON` types:
+
+- double
+
+- 32-bit integer
+
+- 64-bit integer
+
+See :ref:`document-querying-by-data-type`
+
 Arrays
 ~~~~~~
 
@@ -95,30 +106,64 @@ Examples
 Querying by Data Type
 ~~~~~~~~~~~~~~~~~~~~~
 
-Given the collection ``addressBook`` containing addresses and zipcodes, where 
-``zipCode`` has both ``String`` and ``NumberInt`` values:
+The ``addressBook`` contains addresses and zipcodes, where 
+``zipCode`` has ``string``, ``int``, ``double``, and ``long`` 
+values:
 
 .. code-block:: javascript
 
-   { "_id" : 1, address : "2030 Martian Way", zipCode : "90698345" }
-   { "_id" : 2, address : "156 Lunar Place", zipCode : "43339374" }
-   { "_id" : 4, address : "55 Saturn Ring" , zipCode : 88602117 }
+   db.addressBook.insertMany(
+      [
+         { "_id" : 1, address : "2030 Martian Way", zipCode : "90698345" },
+         { "_id" : 2, address: "156 Lunar Place", zipCode : 43339374 },
+         { "_id" : 3, address : "2324 Pluto Place", zipCode: NumberLong(3921412) },
+         { "_id" : 4, address : "55 Saturn Ring" , zipCode : NumberInt(88602117) }
+      ]
+   )
+
+The following queries return all documents where ``zipCode`` is the 
+:term:`BSON` type ``string``:
+
+
+.. code-block:: javascript
+
+   db.addressBook.find( { "zipCode" : { $type : 2 } } );
+   db.addressBook.find( { "zipCode" : { $type : "string" } } );
+
+These queries return:
+
+.. code-block:: javascript
+
+   { "_id" : 1, "address" : "2030 Martian Way", "zipCode" : "90698345" }
 
 The following queries return all documents where ``zipCode`` is the 
-:term:`BSON` type ``String:``
+:term:`BSON` type ``double``:
+
+.. code-block:: javascript
 
+   db.addressBook.find( { "zipCode" : { $type : 1 } } )
+   db.addressBook.find( { "zipCode" : { $type : "double" } } )
+
+These queries return:
 
 .. code-block:: javascript
 
-   db.addressBook.find( { zipCode: { $type : 2 } } );
-   db.addressBook.find( { zipCode: { $type : 'string' } } );
+   { "_id" : 2, "address" : "156 Lunar Place", "zip" : 43339374 }
+
+The following query uses the ``number`` alias to return documents where 
+``zipCode`` is the :term:`BSON` type ``double``, ``int``, or ``long``:
+
+.. code-block:: javascript
+
+   db.addressBook.find( { "zipCode" : { $type : "number" } } )
 
 These queries return:
 
 .. code-block:: javascript
 
-   { "_id": 1, address: "2030 Martian Way", zipCode: "90698345" }
-   { "_id": 2, address: "156 Lunar Place", zipCode: "43339374" }
+   { "_id" : 2, address : "156 Lunar Place", zipCode : 43339374 }
+   { "_id" : 3, address : "2324 Pluto Place", zipCode: NumberLong(3921412) }
+   { "_id" : 4, address : "55 Saturn Ring" , zipCode : 88602117 }
 
 .. _document-querying-by-MinKey-And-MaxKey:
 
@@ -180,7 +225,7 @@ contains  ``minKey``:
 .. code-block:: javascript
 
    db.restaurant.find( 
-      { 'grades.grade' : { $type : 'minKey' } }
+      { "grades.grade" : { $type : "minKey" } }
    )
 
 This returns
@@ -214,7 +259,7 @@ contains ``maxKey``:
 .. code-block:: javascript
 
    db.restaurant.find( 
-      { 'grades.grade' : { $type : 'maxKey' } }
+      { "grades.grade" : { $type : "maxKey" } }
    )
 
 This returns
@@ -246,7 +291,7 @@ This returns
 Querying by Array Type
 ----------------------
 
-The SensorReading collection contains the following documents:
+The ``SensorReading`` collection contains the following documents:
 
 .. code-block:: javascript