question on storage engine API rnd_end

[Zhixuan Zhu]

Hi there,

I have a question on rnd_end API. Will MySQL call it for all the tables
one by one at the end of a query? Or it's possible that MySQL calls
rnd_end on one table in the middle of a query, and then calls rnd_init()
or other rnd/index scan APIs on other tables? We want to do some overall
clean up for a query when the first rnd_end is called, but are concerned
that some info may still be used by other table if the fetch is not
done.

Thanks for your time,
Zhixuan