<?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="2026-03-24T10:15:49Z" 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.group</shortName><identifier>ivo://xaovo/__system__/tap/groups</identifier><curation><publisher>Xinjiang Astronomical Observatory,CAS</publisher><creator><name>Zhang Hailong</name><logo>https://data.xao.ac.cn/favicon.png</logo></creator><date role="Updated">2025-09-23T11:09:07Z</date><contact><name>Zhang Hailong</name><address>150 Science 1-Street, Urumqi, Xinjiang 830011, China</address><email>zhanghailong@xao.ac.cn</email><telephone>+86 18699134012</telephone></contact></curation><content><subject>virtual-observatories</subject><subject>catalogs</subject><description>Columns that are part of groups within tables available for ADQL
querying.</description><referenceURL>http://data.xao.ac.cn/tableinfo/tap_schema.groups</referenceURL></content><tableset><schema><name>tap_schema</name><description> XAO Data Center's Table Access Protocol (TAP) service with
table metadata.</description><table><name>tap_schema.groups</name><description>Columns that are part of groups within tables available for ADQL
querying.</description><column><name>table_name</name><description>Fully qualified table name</description><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>column_name</name><description>Name of a column belonging to the group</description><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>column_utype</name><description>utype the column within the group</description><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>group_name</name><description>Name of the group</description><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>group_utype</name><description>utype of the group</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><foreignKey><targetTable>tap_schema.tables</targetTable><fkColumn><fromColumn>table_name</fromColumn><targetColumn>table_name</targetColumn></fkColumn></foreignKey></table></schema></tableset></ri:Resource>