[mapserver-users] mapserver 0-values problem

[Raivo Alla]

Thank you for answering!

Sorry about absent parentheses, manuallly typing mistake:( In mapfile
it's with parentheses..
In ArcGIS i can select those rows with "[way]=0" filter, successfully.
The origin of the data table is oracle table, where those fields were
originally with <null> values. After generating shapefiles on that
table, these <null> values were substituted by 0-s.


Raivo

On Fri, Jan 16, 2009 at 9:40 PM, Steve Lime <Steve.Lime at dnr.state.mn.us> wrote:
> I'll start with the obvious question, do you really mean:
>
>  EXPRESSION "[way] eq 0"
>
> That should be:
>
>   EXPRESSION ([way] eq 0)
>
> Steve
>
>>>> On 1/16/2009 at 2:50 AM, in message
> <49dc012b0901160050h1473a696qbad0cc15a6dc534 at mail.gmail.com>, Raivo Alla
> <snaperski at gmail.com> wrote:
>> Hi!
>>
>> I have strange situation where my mapfile EXPRESSION "[way] eq 0" does
>> not find rows in a table where there is value 0.
>> The type of the shapefile [way] attribute is double.
>> I heard that mapserver 5 handles <null> values as "0" for numbers, so
>> maybe the problem is that my filter is searching for null-values?
>> Maybe someone can fix my incompetence?
>>
>>
>> Sincerely,
>> Raivo
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>
>