How to query server-side FeatureTable?

[ForrestLin]

Is it possible to query server-side FeatureTable without re-creating FeatureLayer?

[MatthewDriscoll]

The question was how to do it without definitionExpression.  So marking your solution as the correct one, by using definitionExpression, is a bit miss leading for those searching for the same thing in the future.

[ForrestLin]

After FeatureTable with FeatureLayer is created,

call 

queryFeatureLayer(query: string) {

    featureLayer.definitionExpression = query;

    featureLayer.refresh();

}

for each query/search.

Don't need to re-create FeatureLayer for each query/search.