| From: | Gaetano Mendola <mendola(at)bigfoot(dot)com> |
|---|---|
| To: | pgsql-general(at)postgresql(dot)org |
| Subject: | Re: How to find LIMIT in SQL standard |
| Date: | 2003-09-22 14:11:42 |
| Message-ID: | bkn72i$hvv$1@floppy.pyrenet.fr |
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| Thread: | |
| Lists: | pgsql-general |
Rory Campbell-Lange wrote:
> Essentially the call (as defined below) asks for an update and adds a
> LIMIT parameter on the end of the UPDATE. (eg update where x=1 limit 1).
> Postgres doesn't like this and I assume it isn't SQL standards
> compliant and need to refer to this in my bug report.
As far as I know you can not specify a limit for update in Postgres,
at least not in that way.
if you want to do
UPDATE foo SET a='bar' where b LIMIT 1;
this is possible in Postgres doing:
UPDATE foo SET a = 'bar
WHERE foo.oid IN
( SELECT f.oid
FROM foo f
WHERE b
LIMIT 1
);
This fail if the table are created without OID.
Regards
Gaetano Mendola
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