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1<?xml version="1.0" encoding="UTF-8" standalone="no"?>2<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>37.16. column_udt_usage</title><link rel="stylesheet" type="text/css" href="stylesheet.css" /><link rev="made" href="pgsql-docs@lists.postgresql.org" /><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><link rel="prev" href="infoschema-column-privileges.html" title="37.15. column_privileges" /><link rel="next" href="infoschema-columns.html" title="37.17. columns" /></head><body id="docContent" class="container-fluid col-10"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="5" align="center">37.16. <code class="literal">column_udt_usage</code></th></tr><tr><td width="10%" align="left"><a accesskey="p" href="infoschema-column-privileges.html" title="37.15. column_privileges">Prev</a> </td><td width="10%" align="left"><a accesskey="u" href="information-schema.html" title="Chapter 37. The Information Schema">Up</a></td><th width="60%" align="center">Chapter 37. The Information Schema</th><td width="10%" align="right"><a accesskey="h" href="index.html" title="PostgreSQL 16.3 Documentation">Home</a></td><td width="10%" align="right"> <a accesskey="n" href="infoschema-columns.html" title="37.17. columns">Next</a></td></tr></table><hr /></div><div class="sect1" id="INFOSCHEMA-COLUMN-UDT-USAGE"><div class="titlepage"><div><div><h2 class="title" style="clear: both">37.16. <code class="literal">column_udt_usage</code> <a href="#INFOSCHEMA-COLUMN-UDT-USAGE" class="id_link">#</a></h2></div></div></div><p>3   The view <code class="literal">column_udt_usage</code> identifies all columns4   that use data types owned by a currently enabled role.  Note that in5   <span class="productname">PostgreSQL</span>, built-in data types behave6   like user-defined types, so they are included here as well.  See7   also <a class="xref" href="infoschema-columns.html" title="37.17. columns">Section 37.17</a> for details.8  </p><div class="table" id="id-1.7.6.20.3"><p class="title"><strong>Table 37.14. <code class="structname">column_udt_usage</code> Columns</strong></p><div class="table-contents"><table class="table" summary="column_udt_usage Columns" border="1"><colgroup><col /></colgroup><thead><tr><th class="catalog_table_entry"><p class="column_definition">9       Column Type10      </p>11      <p>12       Description13      </p></th></tr></thead><tbody><tr><td class="catalog_table_entry"><p class="column_definition">14       <code class="structfield">udt_catalog</code> <code class="type">sql_identifier</code>15      </p>16      <p>17       Name of the database that the column data type (the underlying18       type of the domain, if applicable) is defined in (always the19       current database)20      </p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition">21       <code class="structfield">udt_schema</code> <code class="type">sql_identifier</code>22      </p>23      <p>24       Name of the schema that the column data type (the underlying25       type of the domain, if applicable) is defined in26      </p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition">27       <code class="structfield">udt_name</code> <code class="type">sql_identifier</code>28      </p>29      <p>30       Name of the column data type (the underlying type of the31       domain, if applicable)32      </p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition">33       <code class="structfield">table_catalog</code> <code class="type">sql_identifier</code>34      </p>35      <p>36       Name of the database containing the table (always the current database)37      </p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition">38       <code class="structfield">table_schema</code> <code class="type">sql_identifier</code>39      </p>40      <p>41       Name of the schema containing the table42      </p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition">43       <code class="structfield">table_name</code> <code class="type">sql_identifier</code>44      </p>45      <p>46       Name of the table47      </p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition">48       <code class="structfield">column_name</code> <code class="type">sql_identifier</code>49      </p>50      <p>51       Name of the column52      </p></td></tr></tbody></table></div></div><br class="table-break" /></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="infoschema-column-privileges.html" title="37.15. column_privileges">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="information-schema.html" title="Chapter 37. The Information Schema">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="infoschema-columns.html" title="37.17. columns">Next</a></td></tr><tr><td width="40%" align="left" valign="top">37.15. <code class="literal">column_privileges</code> </td><td width="20%" align="center"><a accesskey="h" href="index.html" title="PostgreSQL 16.3 Documentation">Home</a></td><td width="40%" align="right" valign="top"> 37.17. <code class="literal">columns</code></td></tr></table></div></body></html>