maria-developers team mailing list archive

[Diego Dupin <diego.dupin@xxxxxxxxxxx>]

Hi,

It must be more related to using SIGNAL inside a stored procedure, server
doesn't send warning to driver in this case.

Warning does inside java connector when server send warning information.
Example :

        try (Statement stmt = sharedConnection.createStatement()) {
            stmt.execute("create or replace procedure pwarning()\n" +
                    "begin\n" +
                    "  DROP TABLE IF EXISTS test.no_such_table;\n" +
                    "end");
            stmt.execute("call pwarning()");
            SQLWarning sqlWarning = stmt.getWarnings();
            Assert.assertNotNull(sqlWarning);
            Assert.assertTrue(sqlWarning.getMessage().contains("Unknown
table 'test.no_such_table'"));
        }

regards,
Diego.

On Wed, Apr 5, 2017 at 8:24 AM, jerome brauge <j.brauge@xxxxxxxxxxx> wrote:

> Hello Daniel,
> In fact, getWarnings works fine when there is no error.
> The following procedure issues one warning and one error, and in this case
> getWarnings() (called inside SQLException catch) returns null even with
> reenableWarnings().
>
> create or replace procedure pwarning1()
> begin
>   SIGNAL SQLSTATE '01000';
>   RESIGNAL SET MESSAGE_TEXT = 'error message';
> end
> /
>
> Regards,
> Jérôme.
>
>
>
> > -----Message d'origine-----
> > De : Maria-developers [mailto:maria-developers-
> > bounces+j.brauge=qualiac.com@xxxxxxxxxxxxxxxxxxx] De la part de Daniel
> > Black
> > Envoyé : mercredi 5 avril 2017 03:09
> > À : maria-developers@xxxxxxxxxxxxxxxxxxx; Diego Dupin
> > Objet : Re: [Maria-developers] JDBC getWarnings and stored procedure
> >
> >
> >
> > On 03/04/17 20:21, jerome brauge wrote:
> > > Hello,
> > >
> > > When we call a stored procedure in JDBC which emit warnings,
> > > getWarnings() always returns null.
> > >
> > > I don't really think that the problem is in MariaDB Connector J
> > > because warning flag in the EOF packet is not set to true.
> > >
> >
> > hasWarnings is set:
> >
> > https://github.com/MariaDB/mariadb-connector-
> > j/blob/master/src/main/java/org/mariadb/jdbc/internal/protocol/AbstractC
> > onnectProtocol.java#L745
> >
> >
> > Its used here:
> >
> > https://github.com/MariaDB/mariadb-connector-
> > j/blob/master/src/main/java/org/mariadb/jdbc/MariaDbConnection.java#L8
> > 27
> >
> > I suspect the bug is warningsCleared has a implicit default of false in
> the
> > above class.
> >
> > As a workaround check, call reenableWarnings() before getWarnings().
> >
> > > Mysql client behaves in the same way, by default it shows warnings
> > > count issued by DML command but not for stored procedure.
> > >
> > >
> > >
> > > Is it a normal behavior ?
> > >
> > >
> > >
> > > Best regards,
> > >
> > > Jérôme.
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
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> >
> >
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