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Rule names are now unique per-relation, rather than unique globally.

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DROP RULE and COMMENT ON RULE syntax adds an 'ON tablename' clause,
similar to TRIGGER syntaxes.  To allow loading of existing pg_dump
files containing COMMENT ON RULE, the COMMENT code will still accept
the old syntax --- but only if the target rulename is unique across
the whole database.
This commit is contained in:
Tom Lane
2002-04-18 20:01:11 +00:00
parent 4e08a625b0
commit b3120804ad
35 changed files with 489 additions and 300 deletions
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21
doc/src/sgml/ref/drop_rule.sgml
View File

@@ -1,5 +1,5 @@
<!--
$Header: /cvsroot/pgsql/doc/src/sgml/ref/drop_rule.sgml,v 1.11 2001/12/08 03:24:36 thomas Exp $
$Header: /cvsroot/pgsql/doc/src/sgml/ref/drop_rule.sgml,v 1.12 2002/04/18 20:01:09 tgl Exp $
PostgreSQL documentation
-->
@@ -23,7 +23,7 @@ PostgreSQL documentation
<date>1998-09-22</date>
</refsynopsisdivinfo>
<synopsis>
DROP RULE <replaceable class="PARAMETER">name</replaceable> [, ...]
DROP RULE <replaceable class="PARAMETER">name</replaceable> ON <replaceable class="PARAMETER">relation</replaceable>
</synopsis>
<refsect2 id="R2-SQL-DROPRULE-1">
@@ -43,6 +43,14 @@ DROP RULE <replaceable class="PARAMETER">name</replaceable> [, ...]
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><replaceable class="parameter">relation</replaceable></term>
<listitem>
<para>
The name of the relation the rule applies to.
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect2>
@@ -68,7 +76,7 @@ DROP
</varlistentry>
<varlistentry>
<term><computeroutput>
ERROR: Rule or view "<replaceable class="parameter">name</replaceable>" not found
ERROR: Rule "<replaceable class="parameter">name</replaceable>" not found
</computeroutput></term>
<listitem>
<para>
@@ -113,11 +121,6 @@ ERROR: Rule or view "<replaceable class="parameter">name</replaceable>" not fou
Refer to <command>CREATE RULE</command> for
information on how to create rules.
</para>
<para>
Once a rule is dropped, access to historical information
the rule has written may disappear.
</para>
</refsect2>
</refsect1>
@@ -129,7 +132,7 @@ ERROR: Rule or view "<replaceable class="parameter">name</replaceable>" not fou
To drop the rewrite rule <literal>newrule</literal>:
<programlisting>
DROP RULE newrule;
DROP RULE newrule ON mytable;
</programlisting>
</para>
</refsect1>