Classes in a Layer obstructing each other (I don't think they should be)

[Matt Pettis]

Hi,

I'm trying to render a layer that colors polygons.  Three of the classes are used to color the polygon, and they are mutually exclusive classes (i.e., only one class at a time will be applicable to a given polygon).  The fourth class I have is meant to draw an outline of the polygon at a certain maxscale value, otherwise, do not display a border.

What I am getting is that the 'border' class doesn't work with the other three.  If it is the first class in the layer, it totally obstructs the results of the other three (even though I am making this layer transparent and the style of the class have a color of -1 -1 -1).  If it is the last class, the borders do not show up at all at any scale.  Any advice or clarification on my misunderstanding of how Mapserver is operating would be appreciated.  Below is the relevant layer:

-----------
LAYER
  NAME              "Precincts"
  CONNECTIONTYPE    postgis
  CONNECTION        "user=postgres dbname=postgis password=xxxx"
  DATA              "the_geom from (select distinct on (county_id, prct_id) county_name , prct_name , candidate_name , party_abbr , percentage_of_votes_for_candidate_by_office , the_geom from ( select distinct on (county_id, prct_id) county_id , prct_id , office_name , max(votes_for_candidate) as votes_for_candidate from sos_stateracespct where office_name = 'US SENATOR' group by county_id , prct_id , office_name having max(votes_for_candidate) > 0 ) m inner join sos_stateracespct using (county_id, prct_id, office_name, votes_for_candidate) inner join shp_prct using (county_id, prct_id) inner join sos_coprct_f using (county_id, prct_id)) as foo using unique the_geom using SRID=-1"
  STATUS            on
  TYPE              polygon
  TRANSPARENCY      0

  CLASS
    NAME            "Draw Prct Boundaries"
    MAXSCALE          500000
    STYLE
      OUTLINECOLOR  0 0 0
      COLOR         -1 -1 -1
      WIDTH         1
    END
  END

  CLASS
    NAME            "DFL Votes"
    EXPRESSION      ("[party_abbr]" = 'DFL' AND [percentage_of_votes_for_candidate_by_office] > 0.5)
    COLOR           153 204 255
  END

  CLASS
    NAME            "R Votes"
    EXPRESSION      ("[party_abbr]" = 'R' AND [percentage_of_votes_for_candidate_by_office] > 0.5)
    COLOR           255 153 255
  END

  CLASS
    NAME            "No Clear Majority"
    EXPRESSION      ( !("[party_abbr]" = 'R' and [percentage_of_votes_for_candidate_by_office] > 0.5) and !("[party_abbr]" = 'DFL' and [percentage_of_votes_for_candidate_by_office] > 0.5))
    COLOR           255 255 153
  END

END