csw:GetRecords

post_query.xml

<?xml version="1.0" encoding="UTF-8"?>
<csw:GetRecords xmlns:csw="http://www.opengis.net/cat/csw/2.0.2" service="CSW" version="2.0.2" resultType="results" maxRecords="100" xmlns:gmd="http://www.isotc211.org/2005/gmd">
    <csw:Query typeNames="csw:Record">
        <csw:ElementSetName>full</csw:ElementSetName>
        <csw:Constraint version="1.1.0">
            <ogc:Filter xmlns:ogc="http://www.opengis.net/ogc">
                <ogc:PropertyIsEqualTo matchCase="true">
                    <ogc:PropertyName>subject</ogc:PropertyName>
                    <ogc:Literal>Boden</ogc:Literal>
                </ogc:PropertyIsEqualTo>
            </ogc:Filter>
        </csw:Constraint>
        <ogc:SortBy xmlns:ogc="http://www.opengis.net/ogc">
            <ogc:SortProperty>
                <ogc:PropertyName>Title</ogc:PropertyName>
                <ogc:SortOrder>DESC</ogc:SortOrder>
            </ogc:SortProperty>
        </ogc:SortBy>
    </csw:Query>
</csw:GetRecords>

response.xml

<?xml version="1.0" encoding="UTF-8"?>
<csw:GetRecordsResponse xmlns:csw="http://www.opengis.net/cat/csw/2.0.2" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.opengis.net/cat/csw/2.0.2 http://schemas.opengis.net/csw/2.0.2/CSW-discovery.xsd">
  <csw:SearchStatus timestamp="2018-06-04T08:06:03" />
  <csw:SearchResults numberOfRecordsMatched="0" numberOfRecordsReturned="0" elementSet="full" nextRecord="0" />
</csw:GetRecordsResponse>