=?ISO-8859-1?Q?Carlos_Guzm=E1n_=C1lvarez?= <[EMAIL PROTECTED]> writes:
> After send the rollbact transaction command i'm not receiving any 
> response from the server, instead, if the SQL command is a valid SQL 
> command all runs fine, any idea about what can be the problem ??

Are you using the extended query protocol?  If so you probably have
forgotten the need for a Sync message.  After an error, the server
discards frontend messages until it sees a Sync.  This is needed so that
you can fire off several component messages in an extended-query
operation without waiting to see whether each one succeeds.  You put the
Sync at the point where you want to wait for results.

                        regards, tom lane

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