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diff --git a/doc/src/sgml/html/infoschema-key-column-usage.html b/doc/src/sgml/html/infoschema-key-column-usage.html new file mode 100644 index 0000000..76de070 --- /dev/null +++ b/doc/src/sgml/html/infoschema-key-column-usage.html @@ -0,0 +1,65 @@ +<?xml version="1.0" encoding="UTF-8" standalone="no"?> +<!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>37.32. key_column_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-foreign-tables.html" title="37.31. foreign_tables" /><link rel="next" href="infoschema-parameters.html" title="37.33. parameters" /></head><body id="docContent" class="container-fluid col-10"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="5" align="center">37.32. <code class="literal">key_column_usage</code></th></tr><tr><td width="10%" align="left"><a accesskey="p" href="infoschema-foreign-tables.html" title="37.31. foreign_tables">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 15.4 Documentation">Home</a></td><td width="10%" align="right"> <a accesskey="n" href="infoschema-parameters.html" title="37.33. parameters">Next</a></td></tr></table><hr /></div><div class="sect1" id="INFOSCHEMA-KEY-COLUMN-USAGE"><div class="titlepage"><div><div><h2 class="title" style="clear: both">37.32. <code class="literal">key_column_usage</code></h2></div></div></div><p> + The view <code class="literal">key_column_usage</code> identifies all columns + in the current database that are restricted by some unique, primary + key, or foreign key constraint. Check constraints are not included + in this view. Only those columns are shown that the current user + has access to, by way of being the owner or having some privilege. + </p><div class="table" id="id-1.7.6.36.3"><p class="title"><strong>Table 37.30. <code class="structname">key_column_usage</code> Columns</strong></p><div class="table-contents"><table class="table" summary="key_column_usage Columns" border="1"><colgroup><col /></colgroup><thead><tr><th class="catalog_table_entry"><p class="column_definition"> + Column Type + </p> + <p> + Description + </p></th></tr></thead><tbody><tr><td class="catalog_table_entry"><p class="column_definition"> + <code class="structfield">constraint_catalog</code> <code class="type">sql_identifier</code> + </p> + <p> + Name of the database that contains the constraint (always the current database) + </p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition"> + <code class="structfield">constraint_schema</code> <code class="type">sql_identifier</code> + </p> + <p> + Name of the schema that contains the constraint + </p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition"> + <code class="structfield">constraint_name</code> <code class="type">sql_identifier</code> + </p> + <p> + Name of the constraint + </p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition"> + <code class="structfield">table_catalog</code> <code class="type">sql_identifier</code> + </p> + <p> + Name of the database that contains the table that contains the + column that is restricted by this constraint (always the + current database) + </p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition"> + <code class="structfield">table_schema</code> <code class="type">sql_identifier</code> + </p> + <p> + Name of the schema that contains the table that contains the + column that is restricted by this constraint + </p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition"> + <code class="structfield">table_name</code> <code class="type">sql_identifier</code> + </p> + <p> + Name of the table that contains the column that is restricted + by this constraint + </p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition"> + <code class="structfield">column_name</code> <code class="type">sql_identifier</code> + </p> + <p> + Name of the column that is restricted by this constraint + </p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition"> + <code class="structfield">ordinal_position</code> <code class="type">cardinal_number</code> + </p> + <p> + Ordinal position of the column within the constraint key (count + starts at 1) + </p></td></tr><tr><td class="catalog_table_entry"><p class="column_definition"> + <code class="structfield">position_in_unique_constraint</code> <code class="type">cardinal_number</code> + </p> + <p> + For a foreign-key constraint, ordinal position of the referenced + column within its unique constraint (count starts at 1); + otherwise null + </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-foreign-tables.html" title="37.31. foreign_tables">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-parameters.html" title="37.33. parameters">Next</a></td></tr><tr><td width="40%" align="left" valign="top">37.31. <code class="literal">foreign_tables</code> </td><td width="20%" align="center"><a accesskey="h" href="index.html" title="PostgreSQL 15.4 Documentation">Home</a></td><td width="40%" align="right" valign="top"> 37.33. <code class="literal">parameters</code></td></tr></table></div></body></html>
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