Re: Insert into master table ->" 0 rows affected" -> Hibernate problems

From: <Mattias(dot)Arbin(at)tietoenator(dot)com>
To: <magnus(at)hagander(dot)net>
Cc: <pgsql-general(at)postgresql(dot)org>
Subject: Re: Insert into master table ->" 0 rows affected" -> Hibernate problems
Date: 2008-06-10 10:48:28
Message-ID: AEEF32D2527D6E4AB32DFD5125F1B2F808686083@maserati.eu.tieto.com
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I tried using rules instead. I did something very similar to this:
CREATE RULE measurement_insert_y2006m02 AS
ON INSERT TO measurement WHERE
( logdate >= DATE '2006-02-01' AND logdate < DATE '2006-03-01' )
DO INSTEAD
INSERT INTO measurement_y2006m02 VALUES (NEW.*);
...
CREATE RULE measurement_insert_y2008m01 AS
ON INSERT TO measurement WHERE
( logdate >= DATE '2008-01-01' AND logdate < DATE '2008-02-01' )
DO INSTEAD
INSERT INTO measurement_y2008m01 VALUES (NEW.*);

... as descibed in the docs:
http://www.postgresql.org/docs/8.3/interactive/ddl-partitioning.html

Unfortunately, I still get
"Query returned successfully: 0 rows affected, 16 ms execution time."

/Mattias

> -----Original Message-----
> From: pgsql-general-owner(at)postgresql(dot)org
> [mailto:pgsql-general-owner(at)postgresql(dot)org] On Behalf Of
> Magnus Hagander
> Sent: den 10 juni 2008 10:43
> To: Arbin Mattias
> Cc: scott(dot)marlowe(at)gmail(dot)com; pgsql-general(at)postgresql(dot)org
> Subject: Re: [GENERAL] Insert into master table ->" 0 rows
> affected" -> Hibernate problems
>
> I think that if you use a RULE instead of a TRIGGER to
> redirect the write, it should return the proper number of
> rows inserted in the child table.
>
> //Magnus
>
>
> Mattias(dot)Arbin(at)tietoenator(dot)com wrote:
> > Scott,
> > You're right, of course. I meant, is there a way to make Postgres
> > return the number of rows inserted to any child table _via_
> the master
> > table + trigger function?
> > I have not been able to find a way to tell Hibernate to ignore the
> > returned number of rows, unless I insert via a custom
> insert statement.
> > /Mattias
> >
> > -----Original Message-----
> > From: Scott Marlowe [mailto:scott(dot)marlowe(at)gmail(dot)com]
> > Sent: den 5 juni 2008 02:01
> > To: Arbin Mattias
> > Cc: pgsql-general(at)postgresql(dot)org
> > Subject: Re: [GENERAL] Insert into master table ->" 0 rows
> affected"
> > -> Hibernate problems
> >
> > On Tue, Jun 3, 2008 at 7:38 AM,
> <Mattias(dot)Arbin(at)tietoenator(dot)com> wrote:
> >> I have implemented partitioning using inheritance following the
> >> proposed solution here (using trigger):
> >>
> http://www.postgresql.org/docs/8.3/interactive/ddl-partitioning.html
> >>
> >> My problem is that when my Hibernate application inserts to the
> >> master
> >
> >> table, postgres returns "0 rows affected", which causes
> Hibernate to
> >> throw an exception since it expects the returned row count to be
> >> equal
> >
> >> to the number of rows inserted.
> >>
> >> Is there a solution to this, i.e. to get Postgres to return the
> >> correct number of rows inserted to the master table?
> >
> > PostgreSQL IS reporting the correct number of rows inserted
> into the
> > master table. 0.
> >
> > There's some setting in hibernate that will tell it to ignore that
> > returned number of rows, but I can't remember it right now.
> >
>
>
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