On Wed, 11 Sep 2002, snpe wrote: > On Wednesday 11 September 2002 02:09 am, Stephan Szabo wrote: > > On Wed, 11 Sep 2002, snpe wrote: > > > yes, we're going around in circles. > > > > > > Ok.I agreed (I think because Oracle do different) > > > Transaction start > > > I type invalid command > > > I correct command > > > I get error > > > > > > Why.If is it transactin, why I get error > > > I want continue. > > > I am see this error with JDeveloper (work with Oracle, DB2 an SQL Server) > > > > Right, that's a separate issue (I alluded to it earlier, but wasn't sure > > that's what you were interested in). PostgreSQL treats all errors as > > unrecoverable. It may be a little loose about immediately rolling back > > due to the fact that historically autocommit was on and it seemed better > > to not go into autocommit mode after the error. > > > > I doubt that 7.3 is going to change that behavior, but a case might be > > made that when autocommit is off the error immediately causes a rollback > > and new transaction will start upon the next statement (that would > > normally start a transaction). > > > > Why rollback.This is error (typing error).Nothing happen.
Postgresql currently has no real notion of a recoverable error. In the case of the error you had, probably nothing bad would happen if it continued, but what if that was a unique constraint violation? Continuing would currently probably let you see the table in an invalid state. > I think that we need clear set : what is start transaction ? > I think that transaction start with change data in database > (what don't change data this start not transaction. > Oracle dot this and I think that is correct)) I disagree because I think that two serializable select statements in autocommit=off (without a commit or rollback of course) should see the same snapshot. I'm trying to find something either way in a pdf copy of sql99. The multiple row select has gotten hidden somewhere, so it's possible that it's not, but all of opening a cursor, fetching from a cursor and the single row select syntax are labeled as transaction initiating. ---------------------------(end of broadcast)--------------------------- TIP 6: Have you searched our list archives? http://archives.postgresql.org
