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Change PROCEDURE to FUNCTION in CREATE TRIGGER syntax

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Since procedures are now a different thing from functions, change the
CREATE TRIGGER and CREATE EVENT TRIGGER syntax to use FUNCTION in the
clause that specifies the function.  PROCEDURE is still accepted for
compatibility.

pg_dump and ruleutils.c output is not changed yet, because that would
require a change in information_schema.sql and thus a catversion change.

Reported-by: Peter Geoghegan <pg@bowt.ie>
Reviewed-by: Jonathan S. Katz <jonathan.katz@excoventures.com>
This commit is contained in:
Peter Eisentraut
2018-08-15 23:08:34 +02:00
parent d12782898e
commit 0a63f996e0
16 changed files with 62 additions and 41 deletions
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12
doc/src/sgml/ref/create_event_trigger.sgml
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@@ -24,7 +24,7 @@ PostgreSQL documentation
CREATE EVENT TRIGGER <replaceable class="parameter">name</replaceable>
ON <replaceable class="parameter">event</replaceable>
[ WHEN <replaceable class="parameter">filter_variable</replaceable> IN (filter_value [, ... ]) [ AND ... ] ]
EXECUTE PROCEDURE <replaceable class="parameter">function_name</replaceable>()
EXECUTE { FUNCTION | PROCEDURE } <replaceable class="parameter">function_name</replaceable>()
</synopsis>
</refsynopsisdiv>
@@ -98,6 +98,14 @@ CREATE EVENT TRIGGER <replaceable class="parameter">name</replaceable>
A user-supplied function that is declared as taking no argument and
returning type <literal>event_trigger</literal>.
</para>
<para>
In the syntax of <literal>CREATE EVENT TRIGGER</literal>, the keywords
<literal>FUNCTION</literal> and <literal>PROCEDURE</literal> are
equivalent, but the referenced function must in any case be a function,
not a procedure. The use of the keyword <literal>PROCEDURE</literal>
here is historical and deprecated.
</para>
</listitem>
</varlistentry>
@@ -136,7 +144,7 @@ END;
$$;
CREATE EVENT TRIGGER abort_ddl ON ddl_command_start
EXECUTE PROCEDURE abort_any_command();
EXECUTE FUNCTION abort_any_command();
</programlisting></para>
</refsect1>