Dan Nessett <dnessett@xxxxxxxxx> writes: > SELECT user_name, regexp_replace(user_email, E'\(.*\)', '') AS user_email, family_list, street_address, city, state, zip, phone_list, email_list > FROM "household_data" > WHERE email_list != ‘'; Because you used E'...', the backslashes are eaten by the string literal parser. So the pattern seen by regexp_replace() is just '(.*)', in which the parens are capturing parens not literal characters. Thus it matches the whole string. Personally I'd leave off the E, but if you must use it then double the backslashes. regards, tom lane