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docs for DROP ... IF EXISTS for the following cases:

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language, tablespace, trigger, rule, opclass, function, aggregate. operator, and cast.
This commit is contained in:
Andrew Dunstan
2006-06-16 22:27:55 +00:00
parent bac6570e78
commit e287fb27a5
9 changed files with 117 additions and 19 deletions
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15
doc/src/sgml/ref/drop_rule.sgml
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@@ -1,5 +1,5 @@
<!--
$PostgreSQL: pgsql/doc/src/sgml/ref/drop_rule.sgml,v 1.20 2003/11/29 19:51:38 pgsql Exp $
$PostgreSQL: pgsql/doc/src/sgml/ref/drop_rule.sgml,v 1.21 2006/06/16 22:27:55 adunstan Exp $
PostgreSQL documentation
-->
@@ -20,7 +20,7 @@ PostgreSQL documentation
<refsynopsisdiv>
<synopsis>
DROP RULE <replaceable class="PARAMETER">name</replaceable> ON <replaceable class="PARAMETER">relation</replaceable> [ CASCADE | RESTRICT ]
DROP RULE [ IF EXISTS ] <replaceable class="PARAMETER">name</replaceable> ON <replaceable class="PARAMETER">relation</replaceable> [ CASCADE | RESTRICT ]
</synopsis>
</refsynopsisdiv>
@@ -36,6 +36,17 @@ DROP RULE <replaceable class="PARAMETER">name</replaceable> ON <replaceable clas
<title>Parameters</title>
<variablelist>
<varlistentry>
<term><literal>IF EXISTS</literal></term>
<listitem>
<para>
Do not throw an error if the rule does not exist. A notice is issued
in this case.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><replaceable class="parameter">name</replaceable></term>
<listitem>