<br><font size=2 face="sans-serif">I'm using 6.1, these 2 solutions work!</font>
<br><font size=3>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, </font><font size=2 face="Verdana">COALESCE(cri,0)
AS cri from mytable) as foo using uninque gid" )</font><font size=2 face="sans-serif"><br>
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<br><font size=2 face="sans-serif">Thank you for your fantastic help,</font>
<p><font size=2 face="sans-serif">Steve</font>
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<td width=40%><font size=1 face="sans-serif"><b>thomas bonfort <thomas.bonfort@gmail.com></b>
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<p><font size=1 face="sans-serif">2013-01-03 13:18</font>
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<div align=right><font size=1 face="sans-serif">A</font></div>
<td><font size=1 face="sans-serif">Steve.Toutant@inspq.qc.ca</font>
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<div align=right><font size=1 face="sans-serif">cc</font></div>
<td><font size=1 face="sans-serif">MapserverList OSGEO <mapserver-users@lists.osgeo.org>,
mapserver-users-bounces@lists.osgeo.org</font>
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<div align=right><font size=1 face="sans-serif">Objet</font></div>
<td><font size=1 face="sans-serif">[Polluriel potentiel] Re: [mapserver-users]
RE null value renders in pie chart</font></table>
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<br><font size=3>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, </font><font size=2 face="Verdana">COALESCE(cri,0)
AS cri from mytable) as foo using uninque gid" )</font>
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<br><font size=2 face="Verdana">--</font>
<br><font size=2 face="Verdana">thomas</font>
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