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Add information_schema.triggered_update_columns

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This reflects the recently added support for triggers on columns.
This commit is contained in:
Peter Eisentraut
2009-12-31 14:41:23 +00:00
parent 31cf893088
commit c584d11bb3
2 changed files with 96 additions and 8 deletions
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76
doc/src/sgml/information_schema.sgml
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@ -1,4 +1,4 @@
<!-- $PostgreSQL: pgsql/doc/src/sgml/information_schema.sgml,v 1.43 2009/12/30 22:48:10 petere Exp $ -->
<!-- $PostgreSQL: pgsql/doc/src/sgml/information_schema.sgml,v 1.44 2009/12/31 14:41:23 petere Exp $ -->
<chapter id="information-schema">
<title>The Information Schema</title>
@ -4796,6 +4796,80 @@ ORDER BY c.ordinal_position;
</table>
</sect1>
<sect1 id="infoschema-triggered-update-columns">
<title><literal>triggered_update_columns</literal></title>
<para>
For triggers in the current database that specify a column list
(like <literal>UPDATE OF column1, column2</literal>), the
view <literal>triggered_update_columns</literal> identifies these
columns. Triggers that do not specify a column list are not
included in this view. Only those columns are shown that the
current user owns or has some non-SELECT privilege on.
</para>
<table>
<title><literal>triggered_update_columns</literal> Columns</title>
<tgroup cols="3">
<thead>
<row>
<entry>Name</entry>
<entry>Data Type</entry>
<entry>Description</entry>
</row>
</thead>
<tbody>
<row>
<entry><literal>trigger_catalog</literal></entry>
<entry><type>sql_identifier</type></entry>
<entry>Name of the database that contains the trigger (always the current database)</entry>
</row>
<row>
<entry><literal>trigger_schema</literal></entry>
<entry><type>sql_identifier</type></entry>
<entry>Name of the schema that contains the trigger</entry>
</row>
<row>
<entry><literal>trigger_name</literal></entry>
<entry><type>sql_identifier</type></entry>
<entry>Name of the trigger</entry>
</row>
<row>
<entry><literal>event_object_catalog</literal></entry>
<entry><type>sql_identifier</type></entry>
<entry>
Name of the database that contains the table that the trigger
is defined on (always the current database)
</entry>
</row>
<row>
<entry><literal>event_object_schema</literal></entry>
<entry><type>sql_identifier</type></entry>
<entry>Name of the schema that contains the table that the trigger is defined on</entry>
</row>
<row>
<entry><literal>event_object_table</literal></entry>
<entry><type>sql_identifier</type></entry>
<entry>Name of the table that the trigger is defined on</entry>
</row>
<row>
<entry><literal>event_object_column</literal></entry>
<entry><type>sql_identifier</type></entry>
<entry>Name of the column that the trigger is defined on</entry>
</row>
</tbody>
</tgroup>
</table>
</sect1>
<sect1 id="infoschema-triggers">
<title><literal>triggers</literal></title>