<?xml version='1.0'?><?xml-stylesheet href='/static/xsl/oai.xsl' type='text/xsl'?><ri:Resource created="2009-12-01T10:00:00Z" status="active" updated="2025-07-17T08:26:45Z" version="1.2" xmlns:g-colstat="http://dc.g-vo.org/ColStats-1" xmlns:ri="http://www.ivoa.net/xml/RegistryInterface/v1.0" xmlns:vr="http://www.ivoa.net/xml/VOResource/v1.0" xmlns:vs="http://www.ivoa.net/xml/VODataService/v1.1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://dc.g-vo.org/ColStats-1 http://vo.ari.uni-heidelberg.de/docs/schemata/Colstats.xsd http://www.ivoa.net/xml/RegistryInterface/v1.0 http://vo.ari.uni-heidelberg.de/docs/schemata/RegistryInterface.xsd http://www.ivoa.net/xml/VOResource/v1.0 http://vo.ari.uni-heidelberg.de/docs/schemata/VOResource.xsd http://www.ivoa.net/xml/VODataService/v1.1 http://vo.ari.uni-heidelberg.de/docs/schemata/VODataService.xsd" xsi:type="vs:CatalogResource"><shortName>tap_schema.key_c</shortName><identifier>ivo://bira-iasb/__system__/tap/key_columns</identifier><curation><publisher>bira-iasb</publisher><creator><name>Loic Trompet</name><logo>http://www.aeronomie.be/multimedia/images/general/bira-iasb-logo.png</logo></creator><contributor>Ann Carine Vandaele, Arnaud Mahieux, Valérie Wilquet, Sarah
Chamberlain</contributor><contact><name>Loic Trompet</name><address>Avenue circulaire 3, 1180 Uccle, Belgium</address><email>pa.vespa-ae@aeronomie.be</email><telephone>+3223730737</telephone></contact></curation><content><subject>virtual-observatories</subject><subject>catalogs</subject><description>Columns participating in foreign key relationships between tables
available for ADQL querying.</description><referenceURL>http://vespa-ae.oma.be/tableinfo/tap_schema.key_columns</referenceURL></content><tableset><schema><name>tap_schema</name><description> VESPA PA team server's Table Access Protocol (TAP) service with
table metadata.</description><table><name>tap_schema.key_columns</name><description>Columns participating in foreign key relationships between tables
available for ADQL querying.</description><column><name>key_id</name><description>Key identifier from TAP_SCHEMA.keys</description><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>from_column</name><description>Key column name in the from table</description><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>target_column</name><description>Key column in the target table</description><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>sourcerd</name><description>Id of the originating rd (local information)</description><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column></table></schema></tableset></ri:Resource>