iam asking doubt & don't give me link how to install mysql,i did it first in mysql...,if u able to answer then only answer don't divert & mark as completed

kindly check why it showing "ERROR: column "signup_flow" does not exist",as there alredy it exist in event type column. select extract(week from occurred_at) as weeks, count(distinct userid) as noofusers from eventstable where eventtype="signupflow" and eventname="completesignup" group by weeks order by weeks;