use eswiki_p;

select user_name, user_id, user_registration

   , (case when user_registration between '20150200000000' and '20150331000000' then 'nuevo' else 'viejo' end) as tipo

from user 

where user_id in (3565464,

23251,

3559840,

3557159,

1883529,

3573995,

3560642,

3142131,

759607,

189911,

1122788,

2583432,

3573999,

3565589,

3574010,

3572978,

39094,

1114081,

579111,

2787129,

3565595,

3571883,

3568787,

3572553,

3564630,

15707,

3573984,

3574003,

3572209,

3573994,

3565435)