问如何在Netezza中使用双引号将列括起来

EN

select 
case
when (p.email_address_text like '%|%')
      then 'true' -- where i want to surround the entry with double quotes
      else p.email
end as email
from dev_databse..tmp_new_student p where p.email_address_text like '%abc@abc.com%';