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Re: Error when dropping table

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: cjwhite(at)cisco(dot)com
Cc: pgsql-admin(at)postgresql(dot)org
Subject: Re: Error when dropping table
Date: 2004-06-23 20:38:17
Message-ID: 5398.1088023097@sss.pgh.pa.us (view raw or flat)
Thread:
Lists: pgsql-admin
Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> writes:
> "Chris White (cjwhite)" <cjwhite(at)cisco(dot)com> writes:
>> On 7.4.2, I am trying to drop a table using the command
>> drop table vm_message cascade;
>> and I get the error message 
>> relation "vm_message" has rel_triggers = 0

> I can't find any such error message in the 7.4 sources.

Oh, here it is --- should have checked the spelling of the pg_class
field:
		elog(ERROR, "relation \"%s\" has reltriggers = 0",
			 RelationGetRelationName(rel));

The most likely bet is that a failed pg_restore left the relation's
triggers disabled.  You can fix this by doing what the restore should
have done:

UPDATE pg_catalog.pg_class SET reltriggers = 
(SELECT count(*) FROM pg_catalog.pg_trigger where pg_class.oid = tgrelid) 
FROM pg_catalog.pg_namespace 
WHERE relnamespace = pg_namespace.oid AND nspname !~ '^pg_';

			regards, tom lane

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