case problem with moveToInsertRow() - 7.4dev drivers OK, 7.3 drivers not - Mailing list pgsql-jdbc

Actually, I looked again at the jdbc page and the drivers I downloaded that work are "7.4dev" drivers (build 201).

The latest 7.3 drivers (build 108) still had the problem.

How unsafe would it be to use the 7.4 drivers with Postgres 7.3.x? At http://developer.postgresql.org/beta.php it says
"Check back for v7.4's beta in a few months" so I'm guessing that 7.4 won't be out any time soon.

-Roger

-----Original Message-----
From: pgsql-jdbc-owner@postgresql.org
[mailto:pgsql-jdbc-owner@postgresql.org]On Behalf Of Roger Hand
Sent: Wednesday, February 12, 2003 9:46 PM
To: pgsql-jdbc@postgresql.org
Subject: Re: [JDBC] case problem with moveToInsertRow()


I was using the "Latest Stable Drivers" (build 108), but when I tried
the "Development Drivers" (build 201) the problem did indeed go away!
Thanks for the tip!

Any idea when this fix will make it into drivers judged to be "Latest
Stable"?

-Roger

-----Original Message-----
From: Barry Lind [mailto:blind@xythos.com]
Sent: Wednesday, February 12, 2003 6:07 PM
To: Roger Hand
Cc: pgsql-jdbc@postgresql.org
Subject: Re: [JDBC] case problem with moveToInsertRow()


Roger,

Try the latest build for 7.3 from jdbc.postgresql.org.  It seems this
issue is already fixed.

thanks,
--Barry


Roger Hand wrote:
> All my tablenames are lowercased in my Postgres db, but for legacy
> reasons the SQL code typically uses mixed case.
>
> Select statements work fine with the mixed case, but
moveToInsertRow()
> fails with a 'No Primary Keys' exception unless I use the lowercase
name
> in the query.
>
> For select, both these statements work fine for the table 'phone':
> SELECT * FROM Phone WHERE Phone = 244
> SELECT * FROM phone WHERE phone = 244
>
> However, the code below bombs if the mixed case table name is
specified:
>
> String SQL = "SELECT * FROM Phone WHERE 1 = 0"; // 'No Primary Keys'
> exception
> //String SQL = "SELECT * FROM phone WHERE 1 = 0"; // works
> System.out.println(SQL);
> Statement sqlStatement = null;
> ResultSet RS = null;
> try {
>   sqlStatement = Conn.createStatement(ResultSet.TYPE_FORWARD_ONLY,
> ResultSet.CONCUR_UPDATABLE);
>   RS = sqlStatement.executeQuery(SQL);
>   boolean newRow = false;
>   if (RS != null) {
>     if (!RS.next()) {
>       newRow = true;
>       RS.moveToInsertRow(); // exception thrown here if mixed case
> tablename given
>     }
>     RS.updateInt("areacode", 444);
>
>     if (newRow)
>       RS.insertRow();
>     else
>       RS.updateRow();
>
>     RS.close();
>     Conn.commit();
>   } // if (RS != null)
> } catch (SQLException e) {System.out.println("SQLException " +
> e.getMessage());
> ==========
> table definition
> ==========
> -- Table: public.phone
> CREATE TABLE public.phone (
>   phone int8 DEFAULT nextval('"phone_phone_key"'::text) NOT NULL,
>   areacode varchar(10),
>   phonenumber varchar(30)
>   CONSTRAINT phone_pkey PRIMARY KEY (phone)
> ) WITH OIDS;
>
> I've traced it thru a little bit in the JDBC code, and it appears
that
> getPrimaryKeys() expects the table name param to be the same case as
the
> table.
>
> I am using Postgres 7.3.1, with JDBC drivers 2+ (build 108) with Java
> 1.3.1, and also the JDBC 3 driver with Java 1.4.1.
>
> -Roger




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