Github user srowen commented on the issue:
https://github.com/apache/spark/pull/15677
@gatorsmile Taking your example, before, the user gets no information at
all about the type, except that it looks maybe string-like. Now at least we say
it's a 'string expression' which suggests, correctly, that you can't send it a
number. I understand that 'string expression' isn't tightly defined. But it
wasn't defined at all before; it's 'incorrect' now, if you like, and less so
after.
Are you essentially saying remove all of the "Arguments" sections? If that
would unblock the discussion, OK, that's an option. @HyukjinKwon how do you
feel about that. @gatorsmile would you be willing to follow this up then with a
PR to restore Arguments sections with whatever you believe should be said about
them?
It's a big change, it's an important change, I am looking forward to
getting these updates in place.
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