I've built a certain system where every time new user enters it creates a
"guest row" on "guests" table. he also gets an identifying cookie.
The table contains several fields, one of them is ID which is auto increment
When he does a certain action it gets recorded in the "done_action" table
with several fields on it, one of them is "guest_id" and his ID on it.
Problem is the guests table has about 30,000 rows (which means ID is high).
I was wondering whether I should somehow change how the system works.
I've thought about couple of options
A weekly "cleanup" job. opens a table called "guests_tmp", *copies* all data
from guests to guests_tmp.
every row it copies it also changes the ID on the table done_action.
What do you think?
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