2026-05-27T05:04:40.958832ivo://astro.ucl.ac.uk/__system__/tap/columnsastro.ucl.ac.ukPatrick Guiohttps://www.ucl.ac.uk/visual-identity/logos/standalone.png2017-03-08T14:59:34Patrick Guio

Gower Street, London, WC1E 6BT, United Kingdom

p.guio@ucl.ac.uk+44 20 7679 0672Virtual observatoryCatalogsADQLColumns in tables available for ADQL querying.http://astroweb.projects.phys.ucl.ac.uk:8000/tableinfo/tap_schema.columnstap_schema UCL DaCHS server's Table Access Protocol (TAP) service with table metadata.tap_schema.columnsColumns in tables available for ADQL querying.table_nameFully qualified table namecharindexedprimarycolumn_nameColumn namecharindexedprimarydescriptionBrief description of columnunicodeCharnullableunitUnit in VO standard formatcharnullableucdUCD of column if anycharnullableutypeUtype of column if anycharnullabledatatypeADQL datatypecharnullable"size"Length of variable length datatypesintnullableprincipalIs column principal?intindexedIs there an index on this column?intstdIs this a standard column?intsourcerdId of the originating rd (local information)charnullablecolumn_index1-based index of the column in database order.shortnullable