Query with several indexes

[Hilaire Fernandes]

Chris Muller a écrit :

> You absolutely can add indexes to "old" MagmaCollections, well after
> they have many thousands of elements.  That is not a problem.  However,
> the code for the index type (MaCompetencyIndex) must be present on the
> server before you start the server.
> 
> You said you tried that, but then got an error, 'attempt to index
> non-existent element in an ordered collection'.  Are you sure, after
> loading MaCompetencyIndex into the server, you restarted the server and
> reconnected the client?  If so, send me the stack trace for this error
> and maybe it will reveal..

I think so. Nevertheless, I retry several times, restarting the magma 
server, removing the new added branch and adding the collection again, 
then adding the indexes and it appears to work. But for some time, the 
indexes seems to not show up in the Magma database folder. I am afraid 
my information is not very reliable for you because no error show up in 
this situation, and it is very possible I mix up the thinks. Any way I 
will have the opportunity to ad index again later. Not sure it is useful 
but the Magma server and client are two different nodes in the internet, 
both connected to the Internet with ADSL connection.

Thanks

Hilaire