Re: problem with notify/listen

Yes this is still an open item.  I have already created a patch to jdbc 
for the problem and am waiting for a 7.3 tree to apply it, as I am 
uncomfortable with the changes going into 7.2 at this late date.

thanks,
--Barry

Bruce Momjian wrote:

> I assume this item is still open.  I put it in the 7.3 queue:
> 
>     http://candle.pha.pa.us/cgi-bin/pgpatches2
> 
> ---------------------------------------------------------------------------
> 
> Barry Lind wrote:
> 
>>I have just been looking into a bug report against the jdbc driver and I 
>>found the following behavior that I can't explain.
>>
>>If I run jdbc with setAutoCommit=true then notifications work as 
>>expected, however if I run with setAutoCommit=false then notifications 
>>are not being sent from the backend to the client.
>>
>>With autoCommit=false the jdbc driver is sending the following SQL 
>>commands to the server:
>>
>>begin
>>select 1
>>commit;begin;
>>select 1
>>commit;begin;
>>select 1
>>...
>>
>>My test code is using the select statement as a means to poll for the 
>>notifications.  The only thing that is unusual about this is that the 
>>"commit;begin;" command string is sent to the server as a single query 
>>to be processed.
>>
>>With autoCommit=true the SQL commands are simply:
>>
>>select 1
>>select 1
>>select 1
>>...
>>
>>In this mode the notifications work correctly.
>>
>>Is there something I am doing wrong, or is this expected behavior for 
>>the server?
>>
>>thanks,
>>--Barry
>>
>>
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>