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Add a bunch of pseudo-types to replace the behavior formerly associated

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with OPAQUE, as per recent pghackers discussion.  I still want to do some
more work on the 'cstring' pseudo-type, but I'm going to commit the bulk
of the changes now before the tree starts shifting under me ...
This commit is contained in:
Tom Lane
2002-08-22 00:01:51 +00:00
parent 606c9b9d4f
commit b663f3443b
126 changed files with 2005 additions and 1205 deletions
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6
doc/src/sgml/trigger.sgml
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@@ -1,5 +1,5 @@
<!--
$Header: /cvsroot/pgsql/doc/src/sgml/trigger.sgml,v 1.23 2002/04/19 16:36:08 tgl Exp $
$Header: /cvsroot/pgsql/doc/src/sgml/trigger.sgml,v 1.24 2002/08/22 00:01:40 tgl Exp $
-->
<chapter id="triggers">
@@ -26,7 +26,7 @@ $Header: /cvsroot/pgsql/doc/src/sgml/trigger.sgml,v 1.23 2002/04/19 16:36:08 tgl
<para>
The trigger function must be defined before the trigger itself can be
created. The trigger function must be declared as a
function taking no arguments and returning type <literal>opaque</>.
function taking no arguments and returning type <literal>trigger</>.
(The trigger function receives its input through a TriggerData
structure, not in the form of ordinary function arguments.)
If the function is written in C, it must use the <quote>version 1</>
@@ -536,7 +536,7 @@ trigf(PG_FUNCTION_ARGS)
Now, compile and create the trigger function:
<programlisting>
CREATE FUNCTION trigf () RETURNS OPAQUE AS
CREATE FUNCTION trigf () RETURNS TRIGGER AS
'...path_to_so' LANGUAGE 'C';
CREATE TABLE ttest (x int4);