[Mono-dev] Ug

Jonathan Pryor jonpryor at vt.edu
Thu Apr 30 21:42:17 EDT 2009

mono-devel-list context: Scott found a bug in sqlmetal today, in that it
wouldn't connect to a MySQL database.  The problem was that
sqlmetal.exe.config is used to specify which connection type to use for
a given /provider option, and the MySQL entry was referencing an invalid

The fix was easy: use a valid type name.  In this case, use ByteFX.Data.

On Thu, 2009-04-30 at 19:04 -0400, Scott Peterson wrote:
> OK, ByteFX.Data is so old, it doesn't work anymore. It generates
> invalid SQL. So we're back to MySql.Data.

So what's the solution here?

1. Stick with using ByteFX.Data.
   Pro: It actually works with a default Mono install.
   Con: It apparently doesn't work.

2. Use MySql.Data types.
   Pro: Actually works.
   Con: Doesn't work with a default Mono install, as the needed assembly
        isn't present --> error messages on a default Mono install.

3. Remove the MySQL entry from sqlmetal.exe.config.
   Pro: Since the prior two don't actually work, at least we're being 
   Con: No MySQL support. :-(

(3) Might not be _terribly_ bad; it might be possible to specify the
DbLinqConnectionType in the connection string, which would allow things
to Just Work without using /provider parameter.  (If /provider is
required, then we should make /provider optional so that /conn can be
used as a fallback.)

So we have 3 bad solutions here; I'm not sure which is worst.


 - Jon

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