Error at simple QueryTask on large map service layer

PitersonPaulgek · ‎11-10-2016

Hi, we try to run simple QueryTask on large (1.5 million features) map service layer:

var queryTask = new QueryTask("someURL/arcgis/rest/services/Polygons2/MapServer/0");

var query = new Query();
query.returnGeometry = true;
query.outFields = ["Name1,Name2"];

query.where = "SomeID = 12345";
queryTask.execute(query, _showResults, _displayError);

_showResults = function (features) {
selectedGraphics.clear();

for (var i = 0; i < features.length; i++) {
var feature = features;
feature.symbol = HighlightSymbol;
selectedGraphics.add(feature);
}

_displayError = function (error) {
console.log(error);
alert("Error");
};

We have the error:

Please help to understand/fix the error.

RobertScheitlin__GISP · ‎11-10-2016

First thing I would do is verify that your query works just using the rest end point for the map service.

View solution in original post

RobertScheitlin__GISP · ‎11-10-2016

First thing I would do is verify that your query works just using the rest end point for the map service.

PitersonPaulgek · ‎11-10-2016

Robert, thank you.

I did.
Seems to be syntax error in the query.where.

RobertScheitlin__GISP · ‎11-10-2016

Is the field you are querying a string or numeric?

PitersonPaulgek · ‎11-10-2016

It is string.

The solution:

query.where = "SomeID = '12345'";

RobertScheitlin__GISP · ‎11-10-2016

Great.

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