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A comment on SQL style guide. Parent comment

Re:SQL style guide by ryeguy on Monday October 10, 2016 @12:12AM (#12675000)
One advantage of using user_id on both the pk of users as well as the fk side is you can do:

    INNER JOIN comments USING (user_id)
instead of:

    INNER JOIN comments ON comments.user_id = user.user_id
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Re:SQL style guide by philliphaydon on Monday October 10, 2016 @07:29AM (#12676403)
Which is fine if you are aware of the differences between the two. Since they act differently.
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Re:SQL style guide by ryeguy on Monday October 10, 2016 @02:35PM (#12678965)
I don't think so, what differences are there? Could this be a database specific thing? In PG it seems equivalent.
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Re:SQL style guide by philliphaydon on Monday October 10, 2016 @09:06PM (#12681198)
In MySQL you can end up with different results.
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