<?xml version='1.0'?><?xml-stylesheet href='/static/xsl/oai.xsl' type='text/xsl'?><ri:Resource created="2012-02-23T12:00:00Z" status="active" updated="2024-11-27T15:36:46Z" 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"><title>GAVO RegTAP Service (Potsdam mirror)</title><shortName>rr.table_column</shortName><identifier>ivo://aip.gavo.org/rr/q/table_column</identifier><curation><publisher>GAVO at Leibniz-Institute for Astrophysics Potsdam</publisher><creator><name>The GAVO data center team</name><logo>http://vo.ari.uni-heidelberg.de/docs/GavoTiny.png</logo></creator><date role="Updated">2025-01-20T08:10:33Z</date><contact><name>Harry Enke</name><address>Leibnitz-Institut fr Astrophysik</address><email>henke@aip.de</email><telephone>++49 6221 541837</telephone></contact></curation><content><subject>virtual-observatories</subject><description> Metadata on columns of a resource's tables.</description><referenceURL>http://gavo.aip.de/tableinfo/rr.table_column</referenceURL></content><tableset><schema><name>rr</name><title>GAVO RegTAP Service (Potsdam mirror)</title><description>
Tables containing the information in the IVOA Registry.  To query
these tables, use `our TAP service`_.

For more information and example queries, see the
`RegTAP specification`_.

.. _our TAP service: /__system__/tap/run/info
.. _RegTAP specification: http://www.ivoa.net/documents/RegTAP/</description><utype>ivo://ivoa.net/std/regtap#1.2</utype><table><name>rr.table_column</name><description> Metadata on columns of a resource's tables.</description><utype>xpath:/(tableset/schema/|)/table/column/</utype><column><name>ivoid</name><description>The parent resource.</description><utype>xpath:/identifier</utype><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>indexed</flag><flag>nullable</flag></column><column><name>table_index</name><description>Index of the table this column belongs to.</description><dataType xsi:type="vs:VOTableType">short</dataType></column><column><name>name</name><description>The name of the column.</description><utype>xpath:name</utype><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>indexed</flag><flag>nullable</flag></column><column><name>ucd</name><description>A unified content descriptor that describes the scientific content of the column.</description><utype>xpath:ucd</utype><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>indexed</flag><flag>nullable</flag></column><column><name>unit</name><description>The unit associated with all values in the column.</description><utype>xpath:unit</utype><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>utype</name><description>An identifier for a role in a data model that the data in this column represents.</description><utype>xpath:utype</utype><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>std</name><description>If 1, the meaning and use of this column is reserved and defined by a standard model. If 0, it represents a database-specific column that effectively extends beyond the standard.</description><utype>xpath:@std</utype><dataType xsi:type="vs:VOTableType">short</dataType><flag>nullable</flag></column><column><name>datatype</name><description>The type of the data contained in the column.</description><utype>xpath:dataType</utype><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>extended_schema</name><description>An identifier for the schema that the value given by the extended attribute is drawn from.</description><utype>xpath:dataType/@extendedSchema</utype><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>extended_type</name><description>A custom type for the values this column contains.</description><utype>xpath:dataType/@extendedType</utype><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>arraysize</name><description>The shape of the array that constitutes the value, e.g., 4, *, 4*, 5x4, or 5x*, as specified by VOTable.</description><utype>xpath:dataType/@arraysize</utype><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>delim</name><description>The string that is used to delimit elements of an array value when arraysize is not '1'.</description><utype>xpath:dataType/@delim</utype><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>type_system</name><description>The type system used, as a QName with a canonical prefix; this will ususally be one of vs:simpledatatype, vs:votabletype, and vs:taptype.</description><utype>xpath:dataType/@xsi:type</utype><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>flag</name><description>Hash-separated keywords representing traits of the column. Recognized values include "indexed", "primary", and "nullable".</description><utype>xpath:flag</utype><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>column_description</name><description>A free-text description of the column's contents.</description><utype>xpath:description</utype><dataType arraysize="*" xsi:type="vs:VOTableType">unicodeChar</dataType><flag>indexed</flag><flag>nullable</flag></column></table></schema></tableset></ri:Resource>