UPLOAD FLOW                   DOWNLOAD FLOW
   +-------------------------+        +-------------------------+
   |                         |        | DB field < 2 MB         |
   |                         |        |                         |
   |   large binary file     |        +-------------------------+
   |      (5.5 MB)           |        | DB field < 2 MB         |
   |                         |        |                         |
   |                         |        +-------------------------+
   +-------------------------+        | DB field < 2 MB         |
                |                     |                         |
                V                     +-------------------------+
   +-------------------------+                     |            
   | file chunk < 2 MB       |                     V            
   |                         |        /=========================\
   +-------------------------+        ||    protocol limit     ||
   | file chunk < 2 MB       |        ||    2 MB               ||
   |                         |        \=========================/
   +-------------------------+                     |             
   | file chunk < 2 MB       |                     V             
   |                         |        +-------------------------+
   +-------------------------+        | file chunk < 2 MB       |
                |                     |                         |
                V                     +-------------------------+
   /=========================\        | file chunk < 2 MB       |
   ||    protocol limit     ||        |                         |
   ||    2 MB               ||        +-------------------------+
   \=========================/        | file chunk < 2 MB       |
                |                     |                         |
                V                     +-------------------------+
   +-------------------------+                     |             
   | DB field < 2 MB         |                     V             
   |                         |        +-------------------------+
   +-------------------------+        |                         |
   | DB field < 2 MB         |        |                         |
   |                         |        |   large binary file     |
   +-------------------------+        |      (5.5 MB)           |
   | DB field < 2 MB         |        |                         |
   |                         |        |                         |
   +-------------------------+        +-------------------------+