st: generate 3.000 dummies

["Cristian Mackenna" <chicomackenna@hotmail.com>]

If I have a database like this:

id_place	id_person
1	1
1	2
1	3
2	4
2	5
2	6
3	7
3	8
3	9
…	…
3000	200000

Is there any fast way to generate a dummy for every of the 3.000 id_place

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