跨层过滤扩展(超过2个过滤器查询)无法工作。

Question

我有一个如下的查询

http://localhost:8080/geoserver/wfs/?service=wfs&version=1.1.0&outputFormat=json&request=getfeature&typename=tiger:poly_landmarks,tiger:poi&cql_filter=INTERSECTS(the_geom, querySingle('tiger:poly_landmarks', 'the_geom','LAND=83','CFCC=H11'))

它提供了三个特征

    {
"type": "FeatureCollection"
"totalFeatures": 3
"features": [3]
0:  {
"type": "Feature"
"id": "poly_landmarks.3"
...More

但是，如果我在querySingle 'LANAME=East河‘中再添加一个过滤器，如下所示

http://localhost:8080/geoserver/wfs/?service=wfs&version=1.1.0&outputFormat=json&request=getfeature&typename=tiger:poly_landmarks,tiger:poi&cql_filter=INTERSECTS(the_geom, querySingle('tiger:poly_landmarks', 'the_geom','LAND=83','CFCC=H11','LANAME=East River'))

说错话

<ows:ExceptionReport version="1.0.0" xsi:schemaLocation="http://www.opengis.net/ows http://localhost:8080/geoserver/schemas/ows/1.0.0/owsExceptionReport.xsd">
<ows:Exception exceptionCode="NoApplicableCode">
<ows:ExceptionText>Could not parse CQL filter list. Function not found. Parsing : INTERSECTS(the_geom, querySingle('tiger:poly_landmarks', 'the_geom','LAND=83','CFCC=H11','LANAME=East River')).</ows:ExceptionText>
</ows:Exception>
</ows:ExceptionReport>

Answer 1

对于文档，querySingle似乎只使用3个参数，这样您的方式就行不通了。我怀疑(即我还没有在这个上下文中测试这一点)您可以通过使用CQL滤波器构建一个更复杂的AND。所以我会尝试

 querySingle('tiger:poly_landmarks', 'the_geom','LAND=83 AND CFCC=H11 AND LANAME=East River'))