From: thhal at mailblocks.com (Thomas Hallgren)
Date: Fri, 22 Jul 2005 12:18:52 +0200
Subject: [Pljava-dev] create oid and WARNING
In-Reply-To: <6C58E66DB3DDCshun@datasection.co.jp>
References: <6C58E66DB3DDCshun@datasection.co.jp>
	<42E0C80C.5060802@mailblocks.com>
	<thhal-0jmC8A2cD77QTovpfv8d56h5FKHNW61@mailblocks.com>
Message-ID: <thhal-0jmC8A2kD77Q6IkPy/ST4O+j3dLn8GG@mailblocks.com>

Probably a PostgreSQL bug that has been fixed in later versions. Post a 
query to the pgsql-hackers at postgresql.org  and ask about the warnings. 
Perhaps they can give you more info.

Regards,
Thomas Hallgren

Shunsuke Ikegami wrote:

>Hello,
>
>I tried to use LargeObject with PL/Java.
>When I create oid, I receive WARNING message.
>Oid is OK.
>
>- pljava-1.1.0
>- psql (PostgreSQL) 7.4.7
>- java version "1.4.2_04"
>- Fedora Core 2
>
>When I tried with psql 8.0.3, I don't receive WARNING.
>Do you have some idea?
>
>
>--- I tried. ---
>import java.sql.SQLException;
>import java.util.logging.Logger;
>
>import org.postgresql.pljava.internal.LargeObject;
>
>public class CreateOidTest {
>    public static int createOid() {
>        try {
>            LargeObject obj = LargeObject.create(LargeObject.INV_WRITE);
>            Logger.getAnonymousLogger().info("create OID");
>        } catch (SQLException e) {
>            e.printStackTrace();
>        }
>        
>        return 1;
>    }
>}
>
>
>--- result 
>
>Jul 22 10:12:45 tsukuyomi postgres[12885]: [100021-1] WARNING:  relcache 
>reference leak: relation "pg_largeobject" has refcnt 2 instead of 0
>Jul 22 10:12:45 tsukuyomi postgres[12885]: [100022-1] WARNING:  relcache 
>reference leak: relation "pg_largeobject_loid_pn_index" has refcnt 2 instead 
>of 0
>
>----
>
>Regards,
>Shunsuke Ikegami
>
>
>  
>
>>Shunsuke,
>>The LargeObject support in PL/Java is experimental and in the current 
>>version, the C-code will not be initialized (hence the error that you 
>>get). The code is there though, and if you want to play around with it, 
>>my guess is that the only thing you need to do in order to get it to 
>>work is to add the line:
>>
>>   LargeObject_initialize(fcinfo);
>>
>>somewhere near the end of function Type_initialize in the file 
>>pljava/type/Type.c, recompile and try again.
>>
>>Regards,
>>Thomas Hallgren
>>    
>>
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>  
>