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I was psyched to hear about GraphQL, but when I looked at it and found no apparent way to do joins... I wondered what the big deal is.

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I think the general idea is that it's a graph rather than relations.

You "join" by using the parent ID (e.g. employerID of parent container to get employees). This can (and often) introduces an n+1 problem unless you watch for it and use dataloaders.

Not saying this is great or anything. :)

Thanks. The issue is what if I want to pull all the employees from the table of all customers, to determine how many employees have made purchases under our employee-discount plan?

I just made that up as something that would likely require a join without really thinking it through too much...

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