Dynamic map layer vs. Dynamic data layer

We recently finished our migration to 10.1 and I'd like to start taking advantage of dynamic layers. To get a feel for how it works, I've started working with the ESRI samples at:

http://servicesbeta2.esri.com/arcgis/rest/services/Census/MapServer

I set up a dynamic layer in GE 1.4/SLV 1.9 using the following JSON:

{

"id": 102,

"definitionExpression": "\"STATE_NAME\" like 'Oregon'",

"source":

{

"type": "mapLayer",

"mapLayerId": 3

}

When I added that layer to GE/SLV, I was expecting to only have the state of Oregon returned from the "states" layer, but I still get all of the states. I also get all of the attributes for the other states. This is surprising to me because my test query only returns "Oregon" when I run it from the the endpoint: (http://servicesbeta2.esri.com/arcgis/rest/services/Census/MapServer/dynamicLayer/query?layer={%0D%0A+%22id%22%3A+101%2C%0D%0A+%22definitionExpression%22%3A+%22\%22state_name\%22+like+%27Oregon%27%22%2C%0D%0A+%22source%22%3A+{%0D%0A++%22type%22%3A+%22mapLayer%22%2C%0D%0A++%22mapLayerId%22%3A+3%0D%0A+}%0D%0A}&where=STATE_NAME+LIKE+%27%25%27&text=&objectIds=&time=&geometry=&geometryType=esriGeometryEnvelope&inSR=&spatialRel=esriSpatialRelIntersects&relationParam=&outFields=*&returnGeometry=true&maxAllowableOffset=&outSR=&returnIdsOnly=false&returnCountOnly=false&orderByFields=&groupByFieldsForStatistics=&outStatistics=&returnZ=false&returnM=false&f=html) Link to Query

Is Essentials able to use dynamic data layers like this? That is, can I configure a dynamic data source to display only specific attributes, such as a single state?

Or is GE/SLV limited to dynamic map layers where only things like symbology and labels can be modified on the fly?

Or maybe my JSON is wrong?

Thanks,

Steve

Dynamic map layer vs. Dynamic data layer

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