[mapserver-users] RE null value renders in pie chart

[thomas bonfort]

Note that EXPRESSION support was added to pie layers in 6.2 only. I'd say
your best bet is to preprocess your data to replace NULLs by 0, or use a
DATA statement on a postgis layer to do that for you ( e.g. DATA "the_geom
from (select gid, the_geom, COALESCE(cri,0) AS cri from mytable) as foo
using uninque gid" )

--
thomas
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