Google Maps Fusiontable query where clause shows "data may still be loading"

StackOverflow https://stackoverflow.com/questions/20690522

  •  19-09-2022
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문제

I'm trying to filter some data in fusion tables and then show the result graphics.

Code is:

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8" />
    <title>map</title>
</head>
<body>
<div id="map-canvas" style="height:500px"></div>

<script src="https://maps.googleapis.com/maps/api/js?sensor=false"></script>
<script>
    function initialize() {
        var sloCenter = new google.maps.LatLng(46.119944, 14.815333);

        var map = new google.maps.Map(document.getElementById('map-canvas'), { zoom: 8, center: sloCenter });

        var layerLUO = new google.maps.FusionTablesLayer({
            query: {
                select: 'graphics',
                from: '1bcKOFVL1kfjLOHGTXibbKzGN-4_Xvy_mj73iteY',
                where: "LUO_ID = 51" //if you comment this line it works. LUO_ID is Number type and 51 is a valid data for this column
            },
            options: {
                styleId: 2
            },
            map: map
        });
    }

    google.maps.event.addDomListener(window, 'load', initialize);
</script>
</body>
</html>

You can view the table at: https://www.google.com/fusiontables/DataSource?docid=1bcKOFVL1kfjLOHGTXibbKzGN-4_Xvy_mj73iteY

Filter works in the fusiontable GUI.

Can someone explain what the problem is?

도움이 되었습니까?

해결책

The "data may still be loading" in my experience means there is something wrong with the query.

Looks to me like your LUO_ID column has a "special" character at the beginning of the name (If I hover over that ID I see a "box" right before the "L". That box seems to be a UTF-8 Byte Order Mark). If I use col0 instead it works (which is the URL you get if you click on "publish"):

example using "col0"

example using LUO_ID

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