Mapserver postgis driver does not quote field names with special characters

[Tamas Szekeres]

Mapserver postgis driver does not quote field names with special
characters,
(eg with code<=32 or code >=128), that causes syntax error on the server.

Field with special characters must be placed between double quotes when
constructing the SQL query string.

For more information see

http://mapserver.gis.umn.edu/bugs/show_bug.cgi?id=1536



Tamas Szekeres