I am developing a web mapping application based on OpenLayers and using a WMS layer from MapServer (the source data for this layer is stored in PostGIS database) and I am facing the following problem: MapServer eliminates a lot of features at the lowest zoom levels.

Zoom Level 10:
![Zoom Level 10][1]

Zoom Level 7:
![Zoom Level 7][2]

Zoom Level 5:  
![Zoom Level 5][3]

Zoom Level 4:  
![Zoom Level 4][4]

Zoom Level 3:  
![Zoom Level 3][5]

I guess it is because MapServer doesn't display features with area less than one pixel. Is it possible to render such features at lowest zoom levels (for example as one pixel features)?


  [1]: https://i.sstatic.net/971Ck.png
  [2]: https://i.sstatic.net/oERje.png
  [3]: https://i.sstatic.net/AaS7b.png
  [4]: https://i.sstatic.net/4XCZM.png
  [5]: https://i.sstatic.net/9nF4n.png