Multiple datasources for Mapviewer WMS

Question

Hello,
I have set up a WMS server using mapviewer. I have data sources "prod" and "pub", one is default configured like this in the WMS configuration:
<wms_config host="myhost" port="8080"
              protocol="http" default_datasource="wms"
              public_datasources="prod,pub">
The problem I am facing is when I am trying to get layers from the  "pub" datasource. Most of the applications I am using throws me the following errors:
"The WMS server returned no data from the GetMap request" , "Layer NotDefined" , "Invalid Layer requested" or this other one from QGIS:
"Map request error (Status: 200; Response: <?xml version = '1.0' encoding = 'UTF-8'?>
<!DOCTYPE ServiceExceptionReport SYSTEM "http://schemas.opengis.net/wms/1.1.1/WMS_exception_1_1_1.dtd">
<ServiceExceptionReport version="1.1.1">
   <ServiceException code="LayerNotDefined">
      <![CDATA[<oms_error>
<![CDATA[
OMS: MAPVIEWER-00003: SQL error occurred while generating map.
]]>
</oms_error>]]>
   </ServiceException>
</ServiceExceptionReport> "
I tried to add the DATAOURCE Mapviewer parameter but I still get these same errors.
When I switch "pub" from public_datasources to default_datasource everything works fine. It seems that I can get layers only from the default datasource. The problem is that I use several database intances and I relly need to have all datasources working.
Could you help me to know if I'm using it the wrong way or if it is a known bug ?
Thank you

Answer 1

Hi Sachin,
The basi answer is yes.  The other infoobjects will be empty if you load in two seperate update rules.
Remember one basic rule about cubes: you cannot change (in general) records in a cube that you have loaded previously. 
But this does not mean the behaviour you want in queries is not correct.
Suppose you load the following:
CHAR A, CHAR B, CHAR C, KF 1
A1               C1      10
          B1     C1       5
In this case a query on C1 will return 15, although a query for the values of B1 will only return 5.
hope it helps,
Tom