[Monetdb-developers] [SQL] Header line change, support for warnings/info

Stefan Manegold Stefan.Manegold at cwi.nl
Tue Oct 24 14:43:23 CEST 2006

Sounds great to me; hence, I stringly vote for "go" --- ASAP to have enough
time before the release to sort-out potential problems/conflicts, etc.


On Tue, Oct 24, 2006 at 01:28:34PM +0200, Fabian Groffen wrote:
> I have a prepared a change for SQL's meta-data headers to use a
> different symbol than the widely accepted hash (#) used for comments in
> MonetDB.  Instead, the percentage sign (%) is used to indicate a
> structured meta-data header.
> This change allows JDBC to be strict in its parsing, while it also
> supports comments/info/warnings over the protocol.  Mapi has also been
> patched to support this.
> An additional advantage of this change is that meta-data no longer is
> considered a comment by Mtest; as such changes in this meta-data (which
> usually upset or change the behaviour of JDBC) are immediately visible,
> even though there is no JDBC test available.
> In the changes implemented one or multiple comment lines can follow
> after a regular Response, just before the prompt or next start of
> header.  I changed the signatures of the functions that create the
> Responses such that they can take an extra string argument "w" (to
> comply with Niels' coding style) which represents a warning message.
> This string may contain newlines, in which case the string is properly
> send as multiple comment lines over the stream.
> Before I do this massive checkin (lots of mapproves in SQL) I prefer to
> get a go/no-go first.  In case of a no-go, I will check in my changes on
> a branch.
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| Dr. Stefan Manegold | mailto:Stefan.Manegold at cwi.nl |
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