Re: Event Triggers: adding information

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От Dimitri Fontaine
Тема Re: Event Triggers: adding information
Дата
Msg-id m24ni67t27.fsf@2ndQuadrant.fr
обсуждение исходный текст
Ответ на Re: Event Triggers: adding information  (Robert Haas <robertmhaas@gmail.com>)
Ответы Re: Event Triggers: adding information  (Robert Haas <robertmhaas@gmail.com>)
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Robert Haas <robertmhaas@gmail.com> writes:
> Can you point me specifically at what you have in mind so I can make
> sure I'm considering the right thing?

Something like this part:

+ -- now try something crazy to ensure we don't crash the backend
+ create function test_event_trigger_drop_function()
+  returns event_trigger
+  as $$
+ BEGIN
+     drop function test_event_trigger2() cascade;
+ END
+ $$ language plpgsql;
+ 
+ create function test_event_trigger2() returns event_trigger as $$
+ BEGIN
+     RAISE NOTICE 'test_event_trigger2: % %', tg_event, tg_tag;
+ END
+ $$ language plpgsql;
+ 
+ create event trigger drop_test_a on "ddl_command_start"
+     when tag in ('create table')
+    execute procedure test_event_trigger_drop_function();
+ 
+ create event trigger drop_test_b on "ddl_command_start"
+    execute procedure test_event_trigger2();
+
+ create table event_trigger_fire1 (a int);
+ 
+ -- then cleanup the crazy test
+ drop event trigger drop_test_a;
+ drop event trigger drop_test_b;
+ drop function test_event_trigger_drop_function();

The only problem for the regression tests being that there's an OID in
the ouput, but with your proposed error message that would go away.

-- 
Dimitri Fontaine
http://2ndQuadrant.fr     PostgreSQL : Expertise, Formation et Support



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