[erlang-questions] what is "mnesia_schema:get_tid_ts_and_lock/2" used for

[devdoer bird]

HI:

Can someone explain the function  "mnesia_schema:get_tid_ts_and_lock/2" to
me? What is it used for in mnesia?

Will it lock the table and when will be the lock  released ?Thanks a lot!

Regards
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