Re: getObject(<oid>) returns integer instead of LargeObject

From: Marc Herbert <Marc(dot)Herbert(at)emicnetworks(dot)com>
To: pgsql-jdbc(at)postgresql(dot)org
Subject: Re: getObject(<oid>) returns integer instead of LargeObject
Date: 2005-07-26 10:20:09
Message-ID: 20050726102009.GB17905@emicnetworks.com
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On Fri, Jul 22, 2005 at 01:41:19PM -0500, Kris Jurka wrote:
>
>
> On Fri, 22 Jul 2005, Marc Herbert wrote:
>
> > Is there some good reason for getObject(<some oid column>) to return the
> > bare oid integer instead of the actual LargeObject handle ?
>
> This makes the assumption that the only use of oids is for large objects.
> What if someone wrote SELECT oid,relname FROM pg_class?

Thanks for answering.

What would you recommend to unambiguously identify a Blob column in a
arbitrary ResultSet, using only JDBC?

For instance could you trust
Types.BLOB == rs.getMetaData.getColumnType() in every case?
Is there any other way?

Would it depend on the latest version of the driver/database?

Thanks in advance for you help!

PS: why do LOBs seem to use regular oids instead of some other less
ambiguous say, "loid" ?

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