Re: Relationship across model boundaries failing
Re: Relationship across model boundaries failing
- Subject: Re: Relationship across model boundaries failing
- From: Guido Neitzer <email@hidden>
- Date: Fri, 30 May 2008 14:48:27 -0600
On 30.05.2008, at 14:31, Alan Ward wrote:
I actually omit joins from the model in certain situations to avoid
unwanted fetches and flattening is more of a recipe for disaster
than a simple join is.
But it actually doesn't matter how big your datasets are. The
interesting question is how big the joins are. I have a database here
with some ten million entries in it and the biggest to-many is a
couple of hundred objects - this runs on a dual G4 with a small disk
array and never gave me any problems.
And I rather have the development speed of flattened relationships and
working to-many relationships and deal with the consequences when I
have to. Yes, I had to turn of some back-relationships over time and
do not model some of the inverse relationships at all, because I know
they will cause problems, but as an overall rule? No, definitely not.
cug
--
http://www.event-s.net
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