What version of Teiid Designer are you using?
Refer to the documentation of your relevant version, here's the latest Teiid Designer User Guide.
You generally don't need to use custom diagrams. That's only if you want to manipulate the layout of what contributes to a transformation and other aspects of what is shown graphically for a transformation.
OK I will learn,but another question ,i create the source model how to only import pk ,not Foreign key
> how to only import pk ,not Foreign key
Depending on which importer you used, there should be an option for that. If none is available, then the translator may not support giving you a choice at the moment. Which source are you dealing with?
my source is oracle,i create souce model,before select schema,there is a option for select Foreign key,when i select this then the pk is import,if not select this,the pk is none
Import with PK, if FK is also there then just delete it. You should really start with many examples we have on the website and learn about the Teiid first. If the options on the import wizard are not clear then post the picture and ask the question about that option after checking the documentation and it is not found.
if not select this,the pk is none
It is doing what is been asked, not selecting means do not put this import? I am confused that what you are looking for?