Re: ResultSet internal data type handling

On Tuesday 12 May 2009 10:02:54 am John Lister's cat walking on the keyboard
wrote:

> I believe the original wire protocol only supported text values hence
> the driver converts all data into a string before sending it to the
> server... Because of this the server will generally convert any value
> into the appropriate type (if this conversion is possible) which saves
> the driver from doing so. This simplifies the driver at the expense of
> extra network traffic and errors thrown by the server as opposed to the
> driver. The original authors can probably expand on this


It is not clear to me: the driver is receiving always strings from the server,
and therefore must do the conversion by itself. The fact is that such
conversion is not checked against the table definition. I would expect an
SQLException if I try to read an integer as a string or viceversa. Instead the
conversion can work and the driver says nothing about.

Luca