[ 0] 1-2 paragraphs paper summary ]

1) 
Consider that one hospital has patient_table_1, another hospital has patient_table_2 and a third hospital has patient_table_3. When the hospitals engage to run a query over their aggregate data, SMCQL performs as much of the query as possible locally at each party -- namely, the maximal part of the query that touches only one party's data runs at that party. For the following queries, indicate what can be computed locally at each party.


Query 1: 
SELECT * FROM patient_table_1, patient_table_2 WHERE
   patient_table_1.SSN = patient_table_2.SSN AND
   patient_table_1.age <= 20 AND
   patient_table_2.age <= 20;

Query 2:
SELECT average(body_mass_index) FROM CONCAT(patient_table_1, patient_table_2) 
group by zipcode;
-> where: 
  - assume that CONCAT simply concatenates the tables, and 
  - body_mass_index and zipcode are fields of both tables (which have the same schema)