Hive Query- Joining two tables on three joining conditions with OR operator

Question

I am facing an error

\"FAILED: Error in semantic analysis: Line 1:101 OR not supported in JOIN currently dob\"

while running the below mentione

Answer 1

You could also use UNION to get the same results:

INSERT OVERWRITE LOCAL DIRECTORY './Insurance_Risk/Merged_Data' 
-- You can only UNION on subqueries
SELECT * FROM (
    SELECT f.name,
        s.age,
        f.gender,
        f.loc,
        f.marital_status,
        f.habits1,
        f.habits2,
        s.employement_status,
        s.occupation_class,
        s.occupation_subclass,
        s.occupation 
    FROM sample_member_detail s 
    JOIN fb_member_detail f 
    ON s.email=f.email 
    WHERE s.email IS NOT NULL AND f.email IS NOT NULL;

    UNION

    SELECT f.name,
        s.age,
        f.gender,
        f.loc,
        f.marital_status,
        f.habits1,
        f.habits2,
        s.employement_status,
        s.occupation_class,
        s.occupation_subclass,
        s.occupation 
    FROM sample_member_detail s 
    JOIN fb_member_detail f 
    ON s.dob=f.dob
    WHERE s.email IS NOT NULL AND f.email IS NOT NULL;

    UNION

    SELECT f.name,
        s.age,
        f.gender,
        f.loc,
        f.marital_status,
        f.habits1,
        f.habits2,
        s.employement_status,
        s.occupation_class,
        s.occupation_subclass,
        s.occupation 
    FROM sample_member_detail s 
    JOIN fb_member_detail f 
    ON f.name=s.name AND f.loc = s.loc AND f.occupation=s.occupation
    WHERE s.email IS NOT NULL AND f.email IS NOT NULL;

) subquery;

Answer 2

Sorry Hive supports only equi-joins. You can always try select from full Cartesian product of those tables(you have to be in non-strict mode):

Select f.name,s.age,f.gender,f.loc,f.marital_status,f.habits1,f.habits2,s.employement_status,s.occupation_class,s.occupation_subclass,s.occupation 
from sample_member_detail s join fb_member_detail f 
where (s.email=f.email 
or s.dob=f.dob 
or (f.name=s.name and f.loc = s.loc and f.occupation=s.occupation))
and s.email is not null and f.email is not null;