Dakle, prica je veoma jednostavna.
U pitanju je sugar crm baza. Tokom importa iz CSV-a uvuklo se previse duplikata, no to nisu "cisti" duplikati.
e.g.

Dakle, uganjao sam duplikate po poljima name i email, ali treba sada da uklonim one dupes koji imaju za Industry=Other.
Da bih lakse izveo ovo, merge-ovao sam potrebne podatke u jednu tabelu.
Pokusao sam ovo, ali onda izvuce samo dupljake gdje oba unosa imaju industry=Other
Code:
select * from bo_contacts
where (last_name, phone_work, email, industry) IN (select a.last_name, a.phone_work, a.email, a.industry FROM (select count(*) AS cnt, last_name, phone_work, email, industry from bizscm.bo_contacts
GROUP by last_name,email
HAVING cnt > 1) a
where a.industry='Other');
select * from bo_contacts
where (last_name, phone_work, email, industry) IN (select a.last_name, a.phone_work, a.email, a.industry FROM (select count(*) AS cnt, last_name, phone_work, email, industry from bizscm.bo_contacts
GROUP by last_name,email
HAVING cnt > 1) a
where a.industry='Other');